JHR 84: 301-325 (2021) OX JOURNAL OF “4 ?eetevewed open-access Jourel
doi: 10.3897/jhr.84.68702 RESEARCH ARTICLE () Hymenopter a
https://jhr.pensoft.net The Imarasional Society of Hymenopeeriss, RESEARCH

Afrotropical species of the genus Sculptolobus
Yang, van Achterberg & Chen (Hymenoptera,
Braconidae, Braconinae)

Konstantin Samartsev', Cornelis van Achterberg*

I Zoological Institute, Russian Academy of Sciences, St Petersburg 199034, Russia 2 Naturalis Biodiversity
Center, 2300 RA Leiden, The Netherlands

Corresponding author: Konstantin Samartsev (k.samartsev@gmail.com)

Academic editor: V. Gokhman | Received 15 May 2021 | Accepted 15 June 2021 | Published 24 August 2021
Attp://zoobank. org/E6FDE91 5-C315-42E2-ABA8-B80CE3B922A2

Citation: Samartsev K, van Achterberg C (2021) Afrotropical species of the genus Sculptolobus Yang, van Achterberg
& Chen (Hymenoptera, Braconidae, Braconinae). In: Proshchalykin MYu, Gokhman VE (Eds) Hymenoptera
studies through space and time: A collection of papers dedicated to the 75" anniversary of Arkady S. Lelej. Journal of
Hymenoptera Research 84: 301-325. https://doi.org/10.3897/jhr.84.68702

Abstract

A review of the Afrotropical species of the genus Scu/ptolobus Yang, van Achterberg & Chen, 2008 is
presented. One species, S. /e/eji sp. nov., and one subspecies, S. lembaensis harteni ssp. nov., are described.
New combinations are proposed for S. bipustulatus (Szépligeti, 1913), comb. nov., S. lembaensis (Cameron,
1912), comb. nov., S. somnialis (Szépligeti, 1913), comb. nov., S. suavis (Szépligeti, 1918), comb. nov.,
and S. subellipticus (Granger, 1949), comb. nov. Lectotypes are designated for S. lembaensis and S. suavis.

For all species descriptions and illustrations are provided together with a diagnostic key.

Keywords

Arabian Peninsula, new combination, new record, new species, new subspecies

Introduction

Sculptolobus Yang, van Achterberg & Chen, 2008 is a small genus of Braconinae, the
largest subfamily of braconid wasps. It has been recently described from the Oriental
part of China, where 5 species have been found. Only two of them (S. zoui Yang, van
Achterberg & Chen, 2008 and S. sulcifer Yang, van Achterberg & Chen, 2008) have

descriptions acceptable for species identification. Oriental species of the genus need a

Copyright Konstantin Samartsev, Cornelis van Achterberg. This is an open access article distributed under the terms of the Creative Commons
Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author
and source are credited.

302 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

separate revision, which require studying the type material deposited in Fujian Agriculture
and Forestry University (Fujian, China). In the current article we focused on Afrotropical
members of the genus, which were assigned to Bracon Fabricius, 1804 in the past, as
well as on species in the material from the Arabian Peninsula collected by Antonius van

Harten and deposited in the Naturalis Biodiversity Center (Leiden, The Netherlands).

Material and methods

Terminology

Morphological nomenclature follows Quicke (1987) and van Achterberg (1993). The
length of fifth segment of the hind tarsus is measured without its pretarsus; the height
of the face is measured including the clypeus; first metasomal tergite is measured from
its articulating condyle [term applied after Vilhelmsen et al. (2010)]; length of oviposi-
tor sheath is measured from its base.

Abbreviations of morphological terms:

Od maximum diameter of lateral ocellus;
OOL ocular-ocellar distance;

POL postocellar distance;

T1-T6 _ first—sixth metasomal tergites.

Museum acronyms:

HNHM_ Hungarian Natural History Museum (Budapest, Hungary);
MNB Museum ftir Naturkunde (Berlin, Germany);

MNHN Muséum National d’ Histoire Naturelle (Paris, France);
RMCA = Musée Royal de l’Afrique Centrale (Tervuren, Belgium);
RMNH_ Naturalis Biodiversity Center (Leiden, The Netherlands);

ZISP Zoological Institute of the Russian Academy of Sciences (Saint Petersburg,
Russia).
Taxonomy

Genus Sculptolobus Yang, van Achterberg & Chen, 2008

Sculptolobus van Achterberg, 2006: Chen and Yang 2006: 143 (unavailable: Yu et al. 2016).
Sculptolobus Yang, van Achterberg & Chen, 2008: 95 (type species: Sculptolobus sulcifer
Yang, van Achterberg & Chen, 2008); Samartsev et al. 2017: 786.

Remarks. By a curious incident, the genus Scu/ptolobus was established two years after
its first species had been described. The species S. bannaensis Yang & Chen, S. tobiasi

Afrotropical species of the genus Sculptolobus 303

Yang & Chen, and S. tongmuensis Chen & Yang have been described in the monograph
on Chinese Braconinae (Chen and Yang 2006), but the genus itself was described there
without an explicit indication of its novelty and with reference to an article by C. van
Achterberg, which has not been published (Yu et al. 2016). Thus, Sculptolobus Chen
& Yang, 2006 is an unavailable name according to the article 16.1 of the International
Code of Zoological Nomenclature (ICZN 1999). The valid description of the genus
has been published later by Yang et al. (2008).

Diagnosis. In the key to the Old World genera of Braconinae (Quicke 1987),
Sculptolobus runs to the couplets 56-74. Further diagnostics of the genus using this
key is not possible, because the characters which are variable in species of Sculptolobus
are used as diagnostic there (e.g., the relative length of the fore wing veins 2-SR+M
and 3-SR, degree of development of the medio-longitudinal carina on propodeum
and anterolateral areas on T3—1'5). The set of 19 genera included in the couplets
56-74 currently is not complete as nine later described Old World genera (exclud-
ing Sculptolobus) are suitable for this part of the key. These genera are: Acrocerilia van
Achterberg, 1989, Ancilibracon Quicke, 1989, Crinibracon Quicke, 1988, Esengoides
Quicke, 1989, Gelasinibracon Quicke, 1989, Scutibracon Quicke & Walker, 1989,
Simplicibracon Quicke, 1988, Stephanobracon Ranjith & Quicke, 2016, and Unco-
bracon Papp, 1996. Preparation of a new version of the key to the genera related to
Sculptolobus requires a larger-scale revision of many genera and is far beyond the scope
of the current article. The diagnostic characters of the genus Scu/ptolobus are as follows:

Scape with dorsal side longer than ventral side (correctly figured but mistak-
enly reversed in the original description). Face with weakly differentiated triangular
area above clypeus and more or less developed medio-longitudinal elevation (Figs
2M, 5E, 8D), sometimes very prominent and incorporating clypeus (Fig. 1B).
Clypeus flattened, with ventral rim (almost) not protruding and with no or weak
dorsal carina. Malar suture weakly (Figs 7B, 8B, D) or deeply (Figs 2M, 3D) im-
pressed; malar space not impressed. Notauli deep and often sculptured anteriorly,
shallow posteriorly (Figs 2T, 3L). Precoxal sulcus shallowly and widely impressed
(Figs 31, 4K). Fore wing vein 1-SR+M straight, vein 1-SR very short. Angle be-
tween veins C+SC+R and 1-SR about 70—85°. Base of hind wing membrane evenly
setose (Fig. 1G). Fore tibia with thick setae only near its apex (Fig. 8K). Hind tibia
without subapical row of thick setae (Fig. 3O). Tarsal claws with protruding basal
lobes (Figs 2S, 30). Metasoma with six coarsely sclerotised tergites. Median area of
T2 parallel-sided, incomplete, and laterally delineated by deep furrows. Anterolat-
eral areas of [2 (Fig. 2U: ala) round, convex, separated by crenulate margin and/or
furrows, with distal margins bordered by posteriorly converging sublateral carinae
(Fig. 2U: slc). Spiracle of T2 located on dorsum of tergite, often far from its lateral
margin (Fig. 3], J: s). Median area of T3 absent. T3—T5 with small anterolateral
areas around spiracles separated by crenulate furrows (Fig. 3J: ala). Apical margins
of T3—T6 thick, laterally straight (only margin of T3 acutely protruding). Oviposi-
tor sheath 0.5—2.0x as long as hind tibia; apex of ovipositor with developed dorsal
nodus and ventral serration (Figs 2P, 3F, 5L). Head, mesosoma, coxae and most of
metasoma granulate or coriaceous.

304 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

Checklist

S. bannaensis Yang & Chen, 2006 (Oriental)

S. biareolatus (Granger, 1949) (Afrotropical)

S. bipustulatus (Szépligeti, 1913), comb. nov. (Afrotropical and West Palaearctic)
S. leleji sp. nov. (Afrotropical)

S. lembaensis (Cameron, 1912), comb. nov. (Afrotropical)
S. lembaensis harteni ssp. nov. (Afrotropical)

S. madagascariensis (Szépligeti, 1913) (Afrotropical)

S. somnialis (Szépligeti, 1913), comb. nov. (Afrotropical)
S. suavis (Szépligeti, 1918), comb. nov. (Afrotropical)

S. subellipticus (Granger, 1949), comb. nov. (Afrotropical)
S. sulcifer Yang, van Achterberg & Chen, 2008 (Oriental)
S. tobiasi Yang & Chen, 2006 (Oriental)

S. tongmuensis Chen & Yang, 2006 (Oriental)

S. zoui Yang, van Achterberg & Chen, 2008 (Oriental)

Key to Afrotropical species of the genus Sculptolobus

The characters additionally defining taxa under a certain paragraph of a key couplet,

but variable in an alternative paragraph, are listed after a dash (-).

1

Dorsal carinae of T1 absent (Figs 3M, 6S, 7O). Spiracle of T2 located close
to lateral margin of tergite (Figs 31, 3J, 7G). Vein 3-SR 0.7—1.4x as long as
vein 2-SR, 0.2—0.5x as long as vein SR1 (Figs 3H, 6L, 7P, 8G). —T2 medially
0.9-1.2x as long as T3 (Figs 3K, 7H, 7R, 8J). Face medially not convex or
weakly elevated (Figs 3B, 7C, 7N, 8B), 1.6-1.9x as wide as high (Fig. 3E).
OOL 1.3-1.7x POL (Figs 3C, 6Q). Suture between T2 and T3 curved (Figs

Dorsal carinae of T1 developed (complete or incomplete; Figs 1L, 2H, 5H,
6H). Spiracle of T2 located rather remotely from lateral margin of tergite.
Vein 3-SR 1.7—2.2x as long as vein 2-SR, 0.5—0.7x as long as vein SR1
(Figs 1G, 2K, 5F). — T2 medially 1.2-1.5x as long as T3 (Figs 1J, 2U, 41,
6K). Face medio-longitudinally weakly elevated (Figs 5C, 6B) to strongly
swollen (Figs 1B, 2L), 1.3—-1.7x as wide as high. OOL 1.9-2.4x POL (Figs
1C, 5B). Suture between T2 and T3 almost straight (Figs 2U, 41) or curved
(CTs OG) sates Mile eeteGe ahi Re eset Cth ect baal DN Tillshs shan seteluaie tab aubiesah eect rapboatae eae 5
T2 without posteriorly converging sublateral carinae (Fig. 3K); median area
of T2 elongate-triangulate, not separated by furrows. Vein 2-SR+M 0.5x as
long as vein m-cu (Fig. 3H). Vein 1-M 1.8-1.9x vein m-cu. Marginal cell
about 4x longer than distance from its apex to apex of wing. Antenna with
32-35 antennomeres. Mesoscutum 0.95—1.00x as wide as long (dorsal view;

Afrotropical species of the genus Sculptolobus 305

Fig. 3L). — Mesoscutum evenly setose (Fig. 3L). T2 medially 0.95—1.00x as
long as T3. Fore wing length 2.8—2.9 mm uo... eeeeeeeeeseeeee S. leleji sp. nov.
T2 with long strongly converging or S-shaped sublateral carinae
(Fig. 7E H, R); median area of T2 parallel-sided or weakly widened posteri-
orly, separated by incomplete crenulate furrows. Vein 2-SR+M 1.0-1.5x as
long as vein m-cu (Figs 7P, 8G). Vein 1-M 2.4—2.9x as long as vein m-cu.
Marginal cell 7—-10x longer than distance from its apex to apex of wing.
Antenna with 17—22 antennomeres. Mesoscutum 1.2—1.3x as wide as long
(dorsal view se iOS OR SUM ox ge. Srenc oor arectranslons sqteat tealecs opine nace epee eucdian gaa elena 3
Vein 3-SR 2.4x longer than vein r, 1.4x longer than vein 2-SR, 0.5x as long
as vein SR1 (Fig. 8G). Ovipositor sheath 0.7x as long as hind tibia, 0.22x
as long as fore wing. [2 medially 1.2x longer than T3 (Fig. 8J). Malar space
0.7x basal width of mandible (Fig. 8D). Longitudinal diameter of eye 3.6x
longer than malar space (anterior view; Fig. 8C). Pterostigma brown. — Me-
dian lobe of mesoscutum setose on notauli and posteriorly, anteromedially
widely glabrous (Fig. 81). Fore wing length 2.5 mm... ee eeeeeeeeeeeeees
ph Bele Pintrsscst thoes! Masel ae sanet tom cude Metond Kae S. subellipticus (Granger), comb. nov.
Vein 3-SR 1.0—1.4x as long as vein 1, 0.7—1.0x as long as vein 2-SR, 0.25—0.35x
as long as vein SR1 (Figs GL, 7P). Ovipositor sheath 0.9-1.1x as long as hind
tibia, 0.3-0.4x as long as fore wing. 12 medially 0.9-1.1x as long as T3 (Figs
6O, 7H, R). Malar space at least 0.90-0.95x basal width of mandible (Fig. 7B).
Longitudinal diameter of eye 2.3—2.9x longer than malar space (anterior view;
Fig. 7A, L). Pterostigma brown with more or less large yellow patch apically. —
Median lobe of mesoscutum entirely setose or glabrous anteromedially ......... 4
Longitudinal diameter of eye 2.6—2.9x longer than malar space (anterior
view; Fig. 7A). OOL 1.3-1.5x POL (Fig. GP, Q). Vein 3-SR 0.25-0.35x as
long as vein SR1 (Fig. 6L). Anterolateral areas of T2 often distinctly separated
by furrows posteriorly (Fig. 6L). Fore wing length 1.6—2.6 mm...
ae asta maa. wag Ge Rat ten Cho mca don RGR ds S. somnialis (Szépligeti), comb. nov.
Longitudinal diameter of eye 2.3x longer than malar space (anterior view;
Fig. 7L). OOL 1.1x POL (Fig. 7K). Vein 3-SR 0.2x as long as vein SR1 (Fig.
7P). Anterolateral areas of T2 not separated by furrows posteriorly (Fig. 7R).
Bore witig lengths 22°11 2.0. ssssenasesncdetinee S. suavis (Szépligeti), comb. nov.
Ovipositor sheath 1.6—1.7x as long as hind tibia, 0.5—0.6x as long as fore wing
(Fig. 2A, J). Round anterolateral areas of T2 strongly separated from notum
by deep crenulate furrows with complete sharp margins (Fig. 21, U). — Hind
femur 4.7—5.3x longer than wide. Fore wing length 2.6—3.2 mm.............4.
ES I oN oh Ree er S. bipustulatus (Szépligeti), comb. nov.
Ovipositor sheath 0.5—1.1x as long as hind tibia, 0.30—0.35x as long as fore
wing (Figs 1A, 4A, 5A). Round anterolateral areas of T2 separated from no-
tum by incomplete sharp crenulate margin and at most shallow crenulate

furrows Figs =I be Al S'S) ROK): aicesscee ne ata sae chtiacenh wovessncnt ed vaen esc RaSeaes 6

306 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

6 Face medio-longitudinally strongly swollen (incorporating clypeus;
Fig. 1B, E). Triangular area above clypeus strongly convex. Longitudinal di-
ameter of eye 2.1x longer than malar space (anterior view; Fig. 1F). Median
area of metanotum rugose (Fig. 1H). — Ovipositor sheath 0.55x as long as
hind tibia, 0.35x as long as fore wing. Dorsolateral posteriorly converging
carinae of T1 absent. Fore wing length 3.5 mm.....S. biareolatus (Granger)

- Face medio-longitudinally weakly elevated or distinctly swollen, but not in-
corporating clypeus (Figs 2L, 5C, 6B). Triangular area above clypeus flat-
tened. Longitudinal diameter of eye 2.8-3.4x longer than malar space (ante-
rior view; Figs 2N, 4G, 5D, 6E). Median area of metanotum smooth (simple
Of withumedian carina; igs? Clea 5G, GI) Bi.8cPihess. sdseutasiis gdiaetaebbeats 7

7 Propodeal spiracle located behind middle of propodeum (lateral view;
Fig. 6G). Apical margins of T3—T6 without transverse subapical grooves
(Fig. 6K). Dorsolateral impressions of T2 deep. Transverse diameter of eye
(dorsal view) about 1.6x longer than temple (Fig. GC). Scape brown. Vein
3-oRabout:2.0< longer than-vein 1 (Big GP): 60.0 ad ceca cenenetesoneceged ensietecsuvest
BP anther Muka ee mentee cemouttvare sce tat sake S. madagascariensis (Szépligeti)

- Propodeal spiracle located at middle of propodeum (Figs 4K, 51). Apical
margins T3—T6 with deep or shallow weakly crenulate transverse subapical
grooves (Figs 41, 5J). Dorsolateral impressions of T2 absent. Transverse diam-
eter of eye (dorsal view) 1.9—2.1x longer than temple (Figs 4D, 5B). Scape
brownish yellow or rusty. Vein 3-SR 2.3—2.7x longer than vein r (Figs 4J,

8 Longitudinal diameter of eye 3.4x longer than malar space (anterior view;
Fig. 4G). Face 1.4x as wide as high. Vein 2-SR+M 1.4x longer than vein
m-cu, as long as vein r. Vein 2-SR 1.6x longer than vein r. Vein 3-SR 1.7x
longer than vein 2-SR. Mesosoma 1.3x as long as high (Fig. 4K). Notauli
almost united posteriorly (Fig. 4F). Pterostigma brown (Fig. 4J). Medio-lon-
gitudinal impression in upper half of propodeum deep and crenulate (Fig.
4L). Median area of metanotum (dorsal view) with complete median carina.
Precoxal sulcus weakly impressed and rugose anteriorly. Fore wing length
OSs 0c ya oak Pa sara Atak ae A S. lembaensis (Cameron), comb. nov.

~ Longitudinal diameter of eye 2.8-3.0x longer than malar space (anterior
view; Fig. 5D). Face 1.5—1.7x as wide as high. Vein 2-SR+M 0.90-0.95x as
long as vein m-cu, 0.65—0.70x as long as vein r. Vein 2-SR 1.2x longer than
vein r. Vein 3-SR 2.0—2.2x longer than vein 2-SR. Mesosoma 1.6x as long
as high (Fig. 51). Notauli not united posteriorly (Fig. 5K). Pterostigma yel-
low (Fig. 5F). Medio-longitudinal impression in upper half of propodeum
shallow (Fig. 5G). Median area of metanotum (dorsal view) with incomplete
median carina. Precoxal sulcus indistinct. Fore wing length 2.5—2.8 mm......
Festa Dae tas Bee vate peste eae eee retainer ete S. lembaensis harteni ssp. nov.

Afrotropical species of the genus Sculptolobus 307

Sculptolobus biareolatus (Granger, 1949)
Fig. 1

Bracon biareolatus Granger, 1949: 56 (in key), 69 (description); Shenefelt 1978: 1469;
Mad] and van Achterberg 2014: 41.
Sculptolobus biareolatus: Samartsev et al. 2017: 786.

Material examined. Holotype. Mapacascar * Female; Bekily; Jun. 1936; A. Seyrig
leg.; MNHN EY19009.

Distribution. Madagascar (Granger 1949).

Remarks. ‘The redescription of the holotype has been presented in Samartsev et
al. (2017).

Sculptolobus bipustulatus (Szépligeti, 1913), comb. nov.
Fig. 2

Bracon bipustulatus Szépligeti, 1913: 597; De Saeger 1943: 375; Shenefelt 1978: 1470;
Quicke 1991: 171 (as a member of the Compsobraconoides genus group).

Microbracon bipustulatus: Brues 1926: 309.

Microbracon recessus Szépligeti sec. Brues 1926: 210 (wrong taxon concept according

to De Saeger 1943: 375).

Material examined. Holotype. Eruioria * Female; Harar; Jun. 1911; O. Kovacs leg.;
HNHM Hym.Typ.No.1274.

Other material. (2 females, 1 male). YEMEN * 1 female; al-Lahima; 1200 m a.s.L.;
1 Jan. — 9 Apr. 2001; A. van Harten & A.M. Hager leg.; Malaise trap, no. 5486;
RMNH INS.1455939 © 1 male; same data as for preceding; RMNH INS.1455940
1 female; same data as for preceding; 16 Oct. — 31 Dec. 2001; Malaise trap, no. 5310;
ZISP Hym.KS.0005014.

Distribution. Democratic Republic of Congo (De Saeger 1943), Egypt (Fahringer
1927), Ethiopia (Szépligeti 1913), Yemen (new record). Possibly also South Africa and
Tanzania (Brues 1926: 210, as Microbracon recessus Szépligeti, explained in De Saeger
1943: 375).

Description. Female. Fore wing length 2.6—3.2 mm. Head. Width of head (dorsal
view) 1.9—2.0x its median length. Transverse diameter of eye (dorsal view) 1.8—2.1x
length of temple. OOL 2.6—2.8x Od; POL 1.2-1.4x Od; OOL 1.9-2.3x POL. Lon-
gitudinal diameter of eye (lateral view) 1.3—1.4x its transverse diameter. Face medi-
ally weakly swollen, incorporating clypeus, with very high medio-longitudinal carina,
1.3-1.6x as wide as high. Longitudinal diameter of eye 2.5—2.6x height of malar space
(anterior view). Malar space as long as base of mandible. Malar suture shallow or deep,

308 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

Figure |. Sculptolobus biareolatus (Granger, 1949) (holotype, female, MNHN) A habitus, lateral view
B head, lateral view C head, dorsal view D apex of ovipositor E head, ventrolateral view F head, anterior

view G fore wing H metanotum, dorsal view I mesosoma, dorsal view J metasoma, dorsal view K meso-
soma, lateral view L T1—T2, dorsal view. Scale bars: 1 mm (A, G); 0.5 mm (I=L); 0.25 mm (B=F, H).

smooth. Width of hypoclypeal depression about 1.3x distance from depression to eye.
Antenna with 26-29 antennomeres, 1.0—1.1x as long as fore wing. First, middle and
penultimate flagellomeres 1.9—2.3x, 1.8—2.0x, and 2.0—2.2x as long as wide, respec-
tively. Mesosoma 1.3—1.4x as long as high. Mesoscutum setose on notaulic area and
posteriorly, anteromedially widely glabrous. Propodeum with branching medio-longitu-
dinal keel in apical third and at most with weak medio-longitudinal impression basally.
Wings. Vein r arising from basal 0.35—0.50x of pterostigma. Vein 1-R1 1.8—2.0x as
long as pterostigma. Marginal cell 7—12x as long as distance from its apex to apex of
wing. Vein 3-SR 2.5—3.2x vein r, 0.6—-0.7x vein SR1, 1.9-2.1x vein 2-SR. Vein 2-SR+M
0.55—0.60x vein 2-SR, 1.0—1.1x vein m-cu. Vein cu-a weakly or distinctly postfurcal.
Legs. Hind femur 4.7—5.3x longer than wide. Fifth segment of hind tarsus 0.77—0.85x
as long as second segment, 0.40—0.45x as long as hind basitarsus. Claws with large,
protruding and blunt basal lobes. Metasoma. Median length of T1 0.59-0.62x its api-
cal width; margin of its median area crenulate. T1 with developed (incomplete or com-
plete) dorsal carinae and laterally compressed median area, with or without sublateral
posteriorly converging carinae; dorsolateral carinae of T1 developed. T2 medially 1.2—
1.4x as long as T3; basal width of T2 1.4—1.7x its median length. Anterolateral areas of

Afrotropical species of the genus Sculptolobus 309

Figure 2. Sculptolobus bipustulatus (Szépligeti, 1913), comb. nov. (A=! holotype, female, HNHM J-Q,
S-U female, RMNH R female ZISP V male, RMNH) A, J habitus, lateral view B, R T1, dorsal view
C tarsal claw D, L head, lateral view E, O mesosoma, lateral view F head, dorsal view G, Q propodeum,
dorsal view H, T mesosoma, dorsal view I, U metasoma, dorsal view K fore wing M head, ventrolateral
view N head, anterior view P apex of ovipositor § hind tarsus, anterior view V habitus, dorsal view. ala

anterolateral area de dorsal carina dlc dorsolateral carina slc sublateral carina. Scale bars: 1 mm (A, J, K,

V); 0.5 mm (B, E, H, I, O,T, U); 0.25 mm (C, D, F, G, L-N, P-S).

T2 round, strongly separated by deep complete crenulate furrows and sharp crenulate
margins, delineating not elevated subparallel-sided median area. Dorsolateral impres-
sions of T2 absent; spiracle located behind middle of T2, on dorsum of tergite. Suture
between T2 and T3 deep, almost straight, and crenulate. Apical margins of T3—T6 with

310 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

deep or shallow, weakly crenulate transverse subapical grooves. Apical margins of T3-
T6 laterally straight. Ovipositor sheath 1.6—1.7x and 0.5—0.6x as long as hind tibia and
fore wing, respectively. Sculpture and colouration. T2—15 with gradually vanishing
weak longitudinal rugosity. Body mainly reddish yellow; tegulae yellow; antenna brown;
malar space pale yellow; pterostigma brown or yellowish brown; wing veins brown to
yellowish brown; wing membrane weakly darkened, often lighter apically.

Male. Fore wing length 2.2 mm. Width of head (dorsal view) 1.8x its median
length. OOL 2.4x Od; POL 1.6x Od; OOL 1.6x POL. Longitudinal diameter of eye
2.8x height of malar space (anterior view). Antenna with 25 antennomeres. Marginal
cell 15x as long as distance from its apex to apex of wing. Hind femur 4.5x longer than
wide. Fifth segment of hind tarsus 0.95x as long as second segment, 0.5x as long as
hind basitarsus. Median length of T1 0.50x its apical width. Body with brown patches
on vertex, mesoscutum, and T3—T6; T1—T2 pale yellow. Otherwise similar to female.

Sculptolobus leleji sp. nov.
http://zoobank.org/AD2B62AD-D71E-4747-B19C-3A362B09B2C3
Fig. 3

Material examined. Holotype. YEMEN * Female; 12 km NW of Manakhah; 1500 m
a.s.l.; 5 May — 17 Jun. 2002; A. van Harten leg.; Malaise trap no. 6983; RMNH
INS.1455961.

Paratype. YEMEN * | female; same data as for holotype; RMNH INS.1455962.

Distribution. Yemen.

Etymology. This species is named in honour of Prof. A.S. Lelej on the occasion of
his 75" anniversary and for his continuous leadership and outstanding contribution to
the entomological research in the Russian Far East.

Description. Female. Fore wing length 2.8-2.9 mm. Head. Width of head (dor-
sal view) 2.0x its median length. Transverse diameter of eye (dorsal view) 2.2—2.7x
longer than temple. OOL 1.7x Od; POL 1.1x Od; OOL 1.5x POL. Longitudinal
diameter of eye (lateral view) 1.5—1.6x larger than its transverse diameter. Face medi-
ally not swollen, but with high complete medio-longitudinal carina; 1.6x as wide as
high. Longitudinal diameter of eye 2.7—3.1x height of malar space (anterior view).
Malar space 0.95—1.00x base of mandible. Malar suture deep and smooth. Width of
hypoclypeal depression 1.1x distance from depression to eye. Antenna with 32-35 an-
tennomeres, 1.0—1.1x as long as fore wing. First, middle and penultimate flagellomeres
1.7—1.9x, 1.5—1.6x, and 1.7—1.9x as long as wide, respectively. Mesosoma 1.5x as long
as high. Mesoscutum evenly setose. Propodeum with branching medio-longitudinal
keel (in apical half only or complete) and at most with a weak medio-longitudinal im-
pression basally. Wings. Vein r arising from basal 0.4x of pterostigma. Vein 1-R1 1.6—
1.7x as long as pterostigma. Marginal cell 3.8-3.9x longer than distance from its apex
to apex of wing. Vein 3-SR 1.7—2.0x than vein r, 0.36—0.42x vein SR1, 0.9-1.25x
vein 2-SR. Vein 2-SR+M 0.33x vein 2-SR, 0.5x vein m-cu. Vein cu-a interstitial.

Afrotropical species of the genus Sculptolobus Sala

Figure 3. Sculptolobus leleji sp. nov. (A-F, I-O holotype, female, RMNH G, H paratype, female,
RMNH) A, G habitus, lateral view B head, lateral view © head, dorsal view D head, ventrolateral view
E head, anterior view F apex of ovipositor H fore wing I mesosoma, lateral view J metasoma, dorsolateral
view K metasoma, dorsal view L mesosoma, dorsal view M T1, dorsolateral view N metanotum, dorsal
view O hind tarsus. ala anterolateral area dli dorsolateral impression s spiracle. Scale bars: 1 mm (A, G,

H); 0.5 mm (I=L); 0.25 mm (B=—F, M-O).

312 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

Legs. Hind femur 3.6—4.9x longer than wide. Fifth segment of hind tarsus 0.71—0.76x
as long as second segment and 0.39—0.41x as long as hind basitarsus. Claws with acute
angularly protruding basal lobe. Metasoma. Median length of T1 0.97x its apical
width; margin of its median area crenulate. T1 without dorsal carinae and sublateral
posteriorly converging carinae; dorsolateral carinae of T1 weakly separated. T2 medi-
ally 0.94—0.97x as long as third tergite. Basal width of T2 1.7x its median length.
Median area of T2 weakly elevated, triangle, elongate, weakly separated (no furrows).
Anterolateral areas of T2 indistinct or weak, sublateral converging carinae absent. Dor-
solateral impressions of T2 shallow, S-shaped, and weakly crenulated; spiracle located
in middle of T2 near its lateral margin. Suture between T2 and T3 deep, curved, and
crenulate. Apical margins of T3—T6 without transverse subapical grooves. Ovipositor
sheath 0.80—0.85x and 0.20—0.25x as long as hind tibia and fore wing, respectively.
Sculpture and colouration. 12 \ongitudinally rugose, T3—T5 rugose to granulate-
rugulose. Body mainly pale yellow to yellow; antenna, ocellar triangle, patch on vertex,
three patches on mesoscutum, and hind tarsus brown to dark brown; tegulae yellowish
brown; pterostigma yellow or brownish yellow with brown patch apically; wing veins
yellowish brown; wing membrane weakly darkened.

Male. Unknown.

Sculptolobus lembaensis (Cameron, 1912), comb. nov.

Fig. 4

Bracon lembaensis Cameron, 1912: 368; Shenefelt 1978: 1501.
Microbracon lembaensis: De Saeger 1943: 376.

Material examined. Lectotype (here designated). DEMOCRATIC REPUBLIC OF THE CON-
Go * Female; Kinshasa, Lemba; Apr. 1911; R. Mayné leg.; RMCA ENT_000017836.
Distribution. Democratic Republic of the Congo (Cameron 1912).
Description. Female. Fore wing length 3.2 mm. Head. Width of head (dorsal
view) 1.8x its median length. Transverse diameter of eye (dorsal view) 1.9x longer
than temple. OOL 2.7x Od; POL 1.4x Od; OOL 2.0x POL. Longitudinal diam-
eter of eye (lateral view) 1.4x its transverse diameter. Face medially convex, but
not incorporating clypeus, with complete, high medio-longitudinal carina, 1.4x as
wide as high. Longitudinal diameter of eye 3.4x height of malar space (anterior
view). Malar space 0.87x base of mandible. Malar suture weakly impressed. Width
of hypoclypeal depression 1.2x distance from depression to eye. Antenna with 30
antennomeres, 1.15x as long as fore wing. First, middle and penultimate flagellom-
eres 2.7x, 2.2x, and 1.3x as long as wide, respectively. Mesosoma 1.3x as long as
high. Mesoscutum setose only on notaulic area. Propodeum with branching medio-
longitudinal keel in apical two thirds and with deep crenulate medio-longitudinal
impression basally. Wings. Vein r arising from basal 0.4x of pterostigma. Vein 1-R1
1.8x as long as pterostigma. Marginal cell ca. 30x as long as distance from its apex

Afrotropical species of the genus Sculptolobus S13

: \

= > : a = J

Figure 4. Sculptolobus lembaensis (Cameron, 1912), comb. nov. (lectotype, female, RMCA) A habitus,
lateral view B labels C apex of ovipositor D head, dorsal view E head, lateral view F mesosoma, dorsal
view G head, anterior view H head, ventrolateral view | metasoma, dorsolateral view J fore wing K meso-
soma, lateral view L propodeum, dorsolateral view. Scale bars: 1 mm (A, J); 0.5 mm (E, K, I); 0.25 mm
(C, D, F-H, L).

to apex of wing. Vein 3-SR 2.7x vein r, 0.53x vein SR1, 1.7x vein 2-SR. Vein
2-SR+M 0.65x vein 2-SR, 1.4x vein m-cu. Vein cu-a postfurcal. Legs. Hind femur
4.6x longer than wide. Fifth segment of hind tarsus 0.8x as long as second segment,
0.4x as long as hind basitarsus. Claws with shortly protruding and blunt basal lobes.
Metasoma. Median length of T1 0.65x its apical width; margin of its median area
crenulate. T1 with complete dorsal carinae and without sublateral posteriorly con-
verging carinae; dorsolateral carinae of T1 developed. T2 medially 1.5x as long as
T3; basal width of T2 1.5x its median length. Anterolateral areas of T2 strongly
separated by sharp crenulate margins and roundly converging sublateral carinae;
median area of T2 absent. Dorsolateral impressions of T2 absent; spiracle located
in middle of T2, on its dorsum. Suture between T2 and T3 deep, weakly curved,
and crenulate. Apical margins of T3—T6 with deep weakly crenulate transverse sub-
apical grooves. Ovipositor sheath as long as hind tibia, 0.34x as long as fore wing.
Sculpture and colouration. 12-13 longitudinally rugose; T4 rugose to granulate-
rugulose. Body mainly reddish yellow; mesosoma reddish brown; antenna brown;
malar space pale yellow; tegulae brownish yellow; pterostigma brown; wing veins
yellowish brown; wing membrane weakly darkened.

Male. Unknown.

314 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

Sculptolobus lembaensis harteni ssp. nov.
http://zoobank.org/18545A75-55C4-4EAF-9 1 DD-1635F70A4E55
Fig. 5

Material examined. Holotype. YEMEN * Female; Lahj; 1 Oct. — 17 Dec. 2001; A. van
Harten & A. Sallum leg.; Malaise trap no. 6254; RMNH INS.1455943.

Paratypes. (3 females, 1 male). YEMEN * 1 male; al-Kowd; 8-12 Jul. 2001;
A. van Harten & S. Al Haruri leg.; light trap, no. 5750; RMNH INS.1455945 ¢ 1
female; same data as for preceding; 16—20 Aug. 2001; light trap, no. 6141; ZISP Hym.
KS.0005015 © 1 female; same data as for holotype; Jan. 2001; Malaise trap, no. 5589;
RMNH INS.1298172 © 1 female; same data as for preceding; Apr. 2001; Malaise trap,
no. 5594; RMNH INS.1455942.

Distribution. Yemen.

Etymology. ‘The species is named in honour of A. van Harten for his outstanding
collecting of arthropods from the Arabian Peninsula and for his impressive book series
on the arthropod fauna of the United Arab Emirates.

Description. Female. Fore wing length 2.5—2.8 mm. Head. Width of head
(dorsal view) 1.9-2.0x its median length. Transverse diameter of eye (dorsal view)
1.9-2.1x length of temple. OOL 3.0-3.2x Od; POL 1.3-1.4x Od; OOL 2.1-2.4x
POL. Longitudinal diameter of eye (lateral view) 1.3—-1.4x its transverse diameter.
Face medially weakly, but widely elevated, with complete, very high medio-longitudi-
nal carina, 1.5—1.7x as wide as high. Longitudinal diameter of eye 2.8—3.0x height of
malar space (anterior view). Malar space 0.85—0.90x base of mandible. Malar suture
deep, smooth. Width of hypoclypeal depression 1.1—1.4x distance from depression to
eye. Antenna with 28 antennomeres, ca. 1.1x as long as fore wing. First, middle and
penultimate flagellomeres 2.1—2.5x, 1.7—1.9x, and 1.9x as long as wide, respectively.
Mesosoma 1.6x as long as high. Mesoscutum setose on notaulic area and posteriorly,
anteromedially widely glabrous. Propodeum with short branching medio-longitudinal
keel apically and weak medio-longitudinal impression in basal half. Wings. Vein r
arising from basal 0.37—0.40x of pterostigma. Vein 1-R1 1.8—1.9x as long as ptero-
stigma. Marginal cell 19—26x as long as distance from its apex to apex of wing. Vein
3-SR 2.3-2.5x vein r, 0.55—0.60x vein SR1, 2.0—2.2x vein 2-SR. Vein 2-SR+M
ca. 0.6x vein 2-SR, 0.90-0.95x as long as vein m-cu. Vein cu-a weakly postfurcal.
Legs. Hind femur 4.4x longer than wide. Fifth segment of hind tarsus 0.85—0.92x as
long as second segment, 0.5x as long as hind basitarsus. Claws with shortly protrud-
ing and blunt basal lobes. Metasoma. Median length of T1 0.65—0.75x its apical
width; margin of its median area crenulate. T1 with incomplete dorsal carinae and
with weak sublateral posteriorly converging carinae; dorsolateral carinae of T1 de-
veloped. T2 medially 1.2—1.4x as long as T3; basal width of T2 1.7—1.8x its median
length. Anterolateral areas of T2 round, weakly separated by roundly converging sub-
lateral carinae and shallow crenulate furrows delineating not elevated subparallel-sided
median area. Dorsolateral impressions of T2 absent; spiracle located in middle of T2,
on dorsum of tergite. Suture between T2 and T3 deep, weakly curved, and crenulate.

Afrotropical species of the genus Sculptolobus 315

Figure 5. Sculptolobus lembaensis harteni ssp. nov. (A-E, G-L holotype, female, RMNH F paratype,
female, RMNH M, N paratype, male, RMNH) A, M habitus, lateral view B head, dorsal view C head,
lateral view D head, anterior view E head, ventrolateral view F fore wing G propodeum, dorsolateral
view H T1, dorsal view I mesosoma, lateral view J metasoma, dorsolateral view K mesosoma, dorsal view
L apex of ovipositor N propodeum and T1-T3, dorsal view. Scale bars: 1 mm (A, F, M); 0.5 mm (I-K,
N); 0.25 mm (B-E, G, H, L=N).

Apical margins of T3—T6 with shallow, weakly crenulate transverse subapical grooves.
Ovipositor sheath 1.00-1.05x and 0.31—0.32x as long as hind tibia and fore wing,
respectively. Sculpture and colouration. 12—T3 longitudinally rugose to granulate-
rugulose. Body mainly reddish yellow, mesosoma reddish brown; malar space pale
yellow; tegulae yellow; pterostigma yellow; wing veins pale brown; wing membrane
weakly darkened, lighter apically.

316 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

Male. Fore wing length 2.1 mm. Transverse diameter of eye (dorsal view) 2.3x
length of temple. OOL 2.2x Od; POL 1.1x Od; OOL 2.0x POL. Longitudinal diam-
eter of eye 3.9x height of malar space (anterior view). Malar space 0.75x base of man-
dible. Malar suture weak under eye, deep near mandible. Antenna with 27 antenno-
meres. Mesosoma 1.7 x as long as high. Vein 2-SR+M 0.85x vein m-cu. Median length
of Tl 0.85x its apical width. Metasoma yellow with pale yellow T1—T2; pterostigma
brownish yellow. Otherwise similar to female.

Sculptolobus madagascariensis (Szépligeti, 1913)
Fig. GA-K

Bracon madagascariensis Szépligeti, 1913: 422; Granger 1949: 56 (in key), 71 (rede-
scription); Shenefelt 1978: 1506; Quicke and Koch 1990: 214 (lectotype designa-
tion); Madl and van Achterberg 2014: 44.

Microbracon madagascariensis: Brues 1926: 311.

Sculptolobus madagascariensis: Samartsev et al. 2017: 787.

Material examined. Lectotype. Mapacascar ® | female; Fenoarivo Atsinanana; Jul.
1904; S. Voeltzkow leg.; MNB.

Distribution. Madagascar (Szépligeti 1913).

Remarks. The redescription of the lectotype has been presented in Samartsev et
al. (2017).

Sculptolobus somnialis (Szépligeti, 1913), comb. nov.
Figs 6L-S, 7A-I

Bracon somnialis Szépligeti, 1913: 598; Shenefelt 1978: 1539 (lectotype designation).
Habrobracon somnialis: Quicke 1991: 173.
Microbracon somnialis: Brues 1926: 313.

Material examined. Lectotype. Erirrea * Female; Assab; 1907; K. Katona leg.;
HNHM 153287 (formerly Hym.Typ.No.1271).

Paralectotype. Erirrea * 1 male; same data as for lectotype; HNHM 153288
(formerly Hym. Typ.No.1272).

Other material. (8 females, 11 males). UNrrep Aras Emirates * 1 male; Al-
Ajban; 30 Jan. — 26 Feb. 2006; A. van Harten leg.; Malaise trap, no. 10417; RMNH
INS.1455948 © 1 male; Sharjah Desert Park; 21-29 Mar. 2005; A. van Harten leg.;
light trap, no. 1192; RMNH INS.1455953 © 1 male; same data as for preceding;
13-23 Apr. 2005; light trap, no. 1394; RMNH INS.1455954 ¢ 1 male; same data
as for preceding; 1-8 Apr. 2007; light trap, no. 7727-30; RMNH INS.1455952 e
3 males; Wadi Bih dam; 13-30 Apr. 2008; K. Mahmood leg.; light trap, no. 11167;

Afrotropical species of the genus Sculptolobus S17

Figure 6. Sculptolobus madagascariensis (Szépligeti, 1913) (A=K lectotype, female, MNB) and S. som-
nialis (Szépligeti, 1913), comb. nov. (L, N=P lectotype, female, HNHM M, Q-S female, RMNH)
A, M habitus, lateral view B head, lateral view C head, dorsal view D propodeum, dorsal view E head,

anterior view F, L fore wing G mesosoma, lateral view H, S T1, dorsal view J, R mesosoma, dorsal view

K, O metasoma, dorsal view N head and mesosoma, lateral view P, Q head and mesosoma, dorsal view.

Scale bars: 1 mm (A, L, M); 0.5 mm (B, C, E, G, J, K, N-S); 0.25 mm (D, H, I).

318 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

RMNH INS.1298173, INS.1298174, INS.1455947 * 1 male; same data as for pre-
ceding; 24 Apr. — 23 May 2007; light trap, no. 11366; RMNH INS.1455951 ¢ 1 male;
Wadi Safad; 2—26 Jan. 2006; A. van Harten leg.; white and yellow pan traps; ZISP
Hym.KS.0005016 © 1 male; same data as for preceding; 1-15 Apr. 2006; light trap,
no. 11296; RMNH INS.1455949 ¢ 1 female; same data as for preceding; 22—29 Apr.
2008; light trap, no. 11181-2; RMNH INS.1455946.

YEMEN * | female; al-Kadan; May 2002; A. van Harten & A.R. Al Yarimi leg.;
light trap, no. 7189; RMNH INS.1455958 ¢ 2 females; al-Kowd; 8 Jul. 2001-12 Jul.
2001; A. van Harten & S. Al Haruri leg.; light trap, no. 5750; RMNH INS.1298175,
INS.1455955 © 1 female; same data as for preceding; 21-25 Aug. 2001; light trap, no.
6117; RMNH INS.1455957 © 1 female; same data as for preceding; 1-5 Sep. 2001;
light trap, no. 6151; RMNH INS.1298176 © 1 female; same data as for preceding;
ZISP Hym.KS.0005017 © 1 female; same data as for preceding; Sep. 2003; light trap,
no. 8136; RMNH INS.1455959 ¢ 1 male; Hammam ’Ali; no. 5404; “from coffee-
berries (with Ceratitis capitata?)”; RMNH INS.1455960.

Distribution. Eritrea (Szépligeti 1913; Brues 1926), the Republic of Cabo Verde
(Papp 2012), United Arab Emirates (new record), Yemen (new record). Incorrectly
reported for Ethiopia by Yu et al. (2016), because the species was indicated on the ter-
ritory of Eritrea (Brues 1926), which separated from Ethiopia in the 1990s.

Description. Female. Fore wing length 1.6—2.6 mm. Head. Width of head (dorsal
view) 1.9—2.1x its median length. Transverse diameter of eye (dorsal view) 1.9-2.3x
length of temple. OOL 2.1—2.5x Od; POL 1.6-1.9x Od; OOL 1.3-1.5x POL. Longi-
tudinal diameter of eye (lateral view) 1.3—1.5x its transverse diameter. Face medially not
convex, with high medio-longitudinal carina in upper half, 1.8-1.9x as wide as high.
Longitudinal diameter of eye 2.6—2.9x height of malar space (anterior view). Malar space
0.90-0.95x base of mandible. Malar suture weakly impressed. Width of hypoclypeal de-
pression 1.0—1.1x distance from depression to eye. Antenna with 17—22 antennomeres
0.7—0.8x as long as fore wing. First, middle and penultimate flagellomeres 1.7—2.2x,
1.4—2.1 timesx, and 1.6—2.3x as long as wide, respectively. Mesosoma 1.3—1.5x as long
as high. Mesoscutum with variable setosity, entirely setose or widely glabrous on lateral
lobes and anteromedially. Propodeum with branching medio-longitudinal keel in apical
third and without medio-longitudinal impression basally. Wings. Vein r arising from
basal 0.35—0.45x of pterostigma. Vein 1-R1 1.3—1.6x as long as pterostigma. Marginal
cell 7—10x distance from its apex to apex of wing. Vein 3-SR 1.0—1.4x vein r, 0.25—0.35x
vein SR1, 0.7—1.0x vein 2-SR. Vein 2-SR+M 0.5—0.6x vein 2-SR, 1.1—1.4x« vein m-cu.
Vein cu-a interstitial. Legs. Hind femur 3.4—3.6x longer than wide. Fifth segment of
hind tarsus 0.75—0.85x as long as second segment, 0.45—0.50x as long as hind basitar-
sus. Claws with acute angularly protruding basal lobes. Metasoma. Median length of T1
0.6—0.8x its apical width; margin of its median area crenulate. T'1 without dorsal carinae,
with laterally compressed median area, with or without sublateral posteriorly converging
carinae; dorsolateral carinae of T1 absent or weakly separated apically. T2 medially 0.9-
1.1x as long as T3; basal width of T2 1.9—2.1x its median length. Anterolateral areas of
T2 round, strongly separated by incomplete strongly converging or S-shaped crenulate
furrows and complete sharp crenulate margin delineating not elevated subparallel-sided

Afrotropical species of the genus Sculptolobus 319

median area. Dorsolateral S-shaped impressions of T2 absent or deep; spiracle located
in middle of T2 near its margin. Suture between T2 and T3 deep, curved, and crenu-
late. Apical margins of T3—T6 with deep or shallow, weakly crenulate transverse subapi-
cal grooves. Ovipositor sheath 1.0—1.2x and 0.32—0.38x as long as hind tibia and fore
wing, respectively. Sculpture and colouration. Y2—T3 sometimes granulate-rugulose to
granulate. Body tricoloured. Ground colour of head, mesonotum and metasoma pale
yellow; vertex, three patches on mesoscutum, propodeum reddish brown to brown; face,
most of mesosoma and legs, and metasoma dorsally yellow to brownish yellow. Tegulae
yellowish brown; pterostigma yellow with brown anterior side and patch apically; wing
veins yellowish brown; wing membrane weakly darkened, yellowish basally.

Male. OOL 1.7—1.8x Od; POL 1.3-1.7x Od; OOL 1.1-1.2x POL. Face 1.6-
1.7x as wide as high. Longitudinal diameter of eye 2.9—3.2x height of malar space (an-
terior view). Malar space 0.75—0.80x base of mandible. Antenna 0.80—0.95x as long
as fore wing. Vein 2-SR+M 1.2—1.7x vein m-cu. Fifth segment of hind tarsus 0.8—1.0x
as long as second segment, 0.5—0.6x as long as hind basitarsus. Median length of T1
0.75-0.95x its apical width. T2 medially 1.1—1.3x as long as T3; basal width of T2
1.7—2.0x its median length. Median area of T2 weakly elevated. Colouration similar to
female, but more contrasting, because of pale yellow patches on scutellum, pronotum,
and T1—T2, and brown patches on vertex, mesopleuron, propodeum, and posterior
metasomal tergites. Pterostigma brown with large yellow patch basally.

Sculptolobus suavis (Szépligeti, 1918), comb. nov.
Fig. 7J-R

Bracon suavis Szépligeti, 1918: 189; Shenefelt 1978: 1542.
Microbracon suavis: Brues 1926: 313.

Material examined. Lectotype (here designated). Namipia * Female; “D.S.W. Africa
Windhuk” [German South West Africa, Windhoek]; S.V. Krause leg.; MNB.

Distribution. Namibia (Szépligeti 1918).

Description. Female. Fore wing length 2.2 mm. Head. Width of head (dorsal
view) 1.9x its median length. OOL 2.0x Od; POL 1.9x Od; OOL 1.1x POL. Face
1.9x as wide as high. Longitudinal diameter of eye 2.3x longer than malar space (ante-
rior view). Malar space 0.9x base of mandible. Width of hypoclypeal depression 1.1x
distance from depression to eye. Antenna. First flagellomere 2.0x as long as wide.
Mesosoma 1.3x as long as high. Mesoscutum widely setose on notauli and with sparse
setae medio-longitudinally. Wings. Vein r arising from basal 0.4 of pterostigma. Vein
1-R1 1.5x as long as pterostigma. Marginal cell 7.5x as long as distance from its apex
to apex of wing. Vein 3-SR as long as vein 1, 0.2x vein SRI, 0.75x vein 2-SR. Vein
2-SR+M 0.55x vein 2-SR, 1.2x vein m-cu. Vein cu-a interstitial. Legs. Hind femur
4.1x longer than wide. Fifth segment of hind tarsus 0.9x as long as second segment,
0.55x as long as hind basitarsus. Metasoma. Median length of T1 0.8x its apical
width. T1 without dorsal carinae and sublateral posteriorly converging carinae. T2

320 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

Figure 7. Sculptolobus somnialis (Szépligeti, 1913), comb. nov. (A-C, E, G, H female, RMNH D,I male,
RMNH F female, ZISP) and S. suavis (Szépligeti, 1918), comb. nov. J-R lectotype, female, MNB)
A, L head, anterior view B head, ventrolateral view C head, lateral view D, G metasoma, dorsolateral view
E, N head and mesosoma, lateral view F, H, R metasoma, dorsal view I, J habitus, lateral view K head,

dorsal view M labels O T1, dorsal view P fore wing Q propodeum, dorsal view. Scale bars: 1 mm (I, J);
0.5 mm (D-H, N, P, R); 0.25 mm (A-C, K, L, O, Q).

Afrotropical species of the genus Sculptolobus PAL

medially as long as T3; basal width of T2 1.8x its median length. Anterolateral areas of
T2 incompletely separated by S-shaped sublateral carinae and short subparallel crenu-
late furrows delineating short weakly elevated median area. Spiracle of T2 located in
middle of tergite, near its lateral margin. Suture between T2 and T3 deep, curved and
crenulate. Apical margins of T3—T6 without transverse subapical grooves. Ovipositor
sheath 0.95x and 0.30x as long as hind tibia and fore wing, respectively. Colouration
pattern as in S. somnialis.

Male. Unknown.

Remarks. ‘The redescription is based on the photographs of the lectotype.

Sculptolobus subellipticus (Szépligeti, 1913), comb. nov.
Fig. 8

Bracon subellipticus Granger, 1949: 56 (key), 69 (description); Shenefelt 1978: 1543;
Mad] and van Achterberg 2014: 47.

Material examined. Holotype. Mapacascar ® Female; Bekily; 1 Oct. 1936; A. Seyrig
leg.; MNHN EY19064.

Distribution. Madagascar (Granger 1949).

Description. Female. Fore wing length 2.5 mm. Head. Width of head (dorsal
view) 1.9x its median length. Transverse diameter of eye (dorsal view) 2.0x length of
temple. OOL 2.2x Od; POL 1.3x Od; OOL 1.7x POL. Longitudinal diameter of eye
(lateral view) 1.4x its transverse diameter. Face medially not convex, with weak medio-
longitudinal carina, 1.6x as wide as high. Longitudinal diameter of eye 3.6x length of
malar space (anterior view). Malar space 0.7x base of mandible. Malar suture weakly
impressed. Width of hypoclypeal depression 1.3x larger than distance from depression
to eye. Antenna with 22 antennomeres, 0.9x as long as fore wing. First, middle and
penultimate flagellomeres 2.5x, 2.1x, and 2.0x as long as wide, respectively. Mesosoma
1.6x as long as high. Mesoscutum setose on notaulic area and posteriorly, anterome-
dially widely glabrous. Propodeum with branching medio-longitudinal keel in apical
third and without medio-longitudinal impression. Wings. Vein r arising from basal
0.45x of pterostigma. Vein 1-R1 1.6x as long as pterostigma. Marginal cell 8.5x longer
than distance from its apex to apex of wing. Vein 3-SR 2.4x vein r, 0.5x vein SRI, 1.4x
vein 2-SR. Vein 2-SR+M 0.45x vein 2-SR, 1.0x vein m-cu. Vein cu-a weakly postfur-
cal. Legs. Hind femur 4.0x longer than wide. Fifth segment of hind tarsus 0.95x as
long as second segment, 0.47 as long as hind basitarsus. Claws with large, protruding
and blunt basal lobes. Metasoma. Median length of T1 0.8x its apical width; mar-
gin of its median area crenulate. T1 without dorsal carinae and sublateral posteriorly
converging carinae; dorsolateral carinae of T1 developed. T2 medially 1.2x as long
as 13; basal width of T2 1.6x its median length. Anterolateral areas of T2 round,
strongly separated by incomplete crenulate furrows, complete sharp crenulate margin

322 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

on

| : __ |
Figure 8. Sculptolobus subellipticus (Granger, 1949), comb. nov. (lectotype, female, MNHN) A habitus,
lateral view B head, lateral view C head, anterior view D head, ventrolateral view E head, dorsal view
F mesosoma, lateral view G fore wing H propodeum, dorsal view I mesosoma, dorsal view J metasoma,
dorsal view K fore tibia M middle and hind legs N T1, dorsal view. Scale bars: 1 mm (A, G); 0.5 mm
(F, M, I, J); 0.25 mm (B-E, H, K, L, N).

delineating not elevated subparallel-sided median area, and S-shaped sublateral con-
verging carinae. Dorsolateral impressions of T2 deep, S-shaped, and crenulated; spira-
cle located in middle of T2, near its lateral margin. Suture between T2 and T3 deep,
curved, and crenulate. Apical margins of T3—T6 without transverse subapical grooves.
Ovipositor sheath 0.7x as long as hind tibia and 0.22x as long as fore wing. Sculpture
and colouration. 12-14 granulate-rugulose to granulate. Coloration pattern similar
to S. somnialis and S. suavis. Tegulae yellowish brown; pterostigma brown; wing veins
pale brown; wing membrane weakly darkened.

Male. Unknown.

Discussion

In this article, species of the genus Scu/ptolobus were reported for the first time in the
Arabian Peninsula, from where a new species and a new subspecies were described,
and the composition of the genus was expanded by five species previously known
from Afrotropical region. The genus was found to be rather morphologically uniform

Afrotropical species of the genus Sculptolobus 323

and well-distinguishable from other taxa of the subfamily. It is most similar to
Habrobracon Ashmead [which is considered either a subgenus of the genus Bracon
Fabricius or a valid genus; see discussion in Samartsev and Ku (2020: 26)] sharing such
characters as the entirely granulate body, details of the fore wing venation (straight
vein 1-SR+M, very short 1-SR, and long 2-SR+M), absence of thick setae on apex of
hind tibia, and presence of incomplete parallel-sided or posteriorly diverging median
area on [2 delineated by furrows on its lateral sides. These characters (except for the
first one) also characterise the subgenus Sculptobracon Tobias of the genus Bracon.
However, although Scu/ptolobus differs from both similar taxa by the tendency of
development of a medio-longitudinal prominence on the face, the presence of malar
suture, sublateral posteriorly converging carinae on T1, large anterolateral areas on
T2, and smaller anterolateral areas on T3 and posterior tergites, all these characters
are not always developed in certain members of the genus. It is difficult to evaluate
the intraspecific variability of characters in the genus, since most of its species are
known only by few type specimens. But species for which several specimens are
available (for example, S. sommnialis) are characterised by a considerable variability, in
particular, in the degree of development of depressions on the metasoma and setosity
of the mesoscutum (figs GR, 7F—H and 6P-R, respectively). It should be noted
that S. somnialis was found to be very similar to S. suavis described from Namibia.
However, the differences found for S. suavis are still outside the revealed variability
of the former species and we therefore refrain from synonymizing S. somnialis and
S. suavis. We also found several minor differences between Central African specimens
of S. lembaensis and specimens from the Arabian Peninsula, which resulted in the
description of a new subspecies.

The results obtained during the current investigation of Sculptolobus (three out
of four species found in the Arabian Peninsula are described from Africa) and those
from publications in the near future indicate that studying the braconine fauna of the
Arabian Peninsula requires a profound knowledge of the Afrotropical taxa.

Acknowledgements

We are deeply thankful to Viola Richter and Lukas Kirschey (MNB), Pierre Rasmont
(Université de Mons, Belgium), Didier Van den Spiegel and Stéphane Hanot (RMCA),
Zoltan Vas (HNHM), and Claire Villemant (MNHN) for the opportunities to study
the necessary type material. We are grateful to Tony van Harten (Almada, Portugal)
for his extensive collecting of Braconidae in the Arabian Peninsula. We would also
like to thank Frederique Bakker (RMNH) for fast and reliable handling of various
problems related to the Naturalis collection material. And we are thankful to two
anonymous reviewers and to the editor Vladimir E. Gokhman for helpful corrections
and suggestions. The study was performed in the frames of the state research project
No AAAA-A19-119020690101-6 and supported by the Russian Foundation for Basic
Research (grant No 19-04-00027).

324 K. Samartsev & C. van Achterberg / Journal of Hymenoptera Research 84: 301-325 (2021)

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