Biodiversity Data Journal 9: e63188 CO)
doi: 10.3897/BDJ.9.e63188 open access
Single Taxon Treatment

First record of the lace bug genus Eritingis (Drake
and Ruhoff) (Hemiptera: Heteroptera: Tingidae)
from Japan and Thailand

Jun Souma ? §

+ Entomological Laboratory, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University,
Fukuoka, Japan
§ Research Fellowship for Young Scientists (DC1), Japan Society for the Promotion of Science, Tokyo, Japan

Corresponding author: Jun Souma (kodokusignal@gmail.com)

Academic editor: Nikolay Simov
Received: 15 Jan 2021 | Accepted: 09 Mar 2021 | Published: 27 Apr 2021

Citation: Souma J (2021) First record of the lace bug genus Eritingis (Drake and Ruhoff) (Hemiptera:
Heteroptera: Tingidae) from Japan and Thailand. Biodiversity Data Journal 9: e63188.

https://doi.org/10.3897/BDJ.9.e63188

Abstract

Background

The lace bug genus Eritingis Drake and Ruhoff, 1962 is widely distributed in the Australian
and Oriental Regions, whereas only a single species, E. recentis (Drake and Poor, 1937),
has been recorded from the Oriental Region. To date, E. recentis is known to occur in
Indonesia, Malaysia, Papua New Guinea, Singapore and Vietnam, but has not been
recorded from Japan and Thailand.

New information

Eritingis and E. recentis are recorded from Japan and Thailand for the first time.

© Souma J. 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.

2 Souma J

Keywords

Heteroptera, Tingidae, Eritingis recentis, lace bug, new record, Japan, Thailand, eastern
Asia, Oriental Region

Introduction

The lace bug genus Eritingis Drake and Ruhoff, 1962 (Hemiptera: Heteroptera: Tingidae)
comprises 11 species from the Australian and Oriental Regions: E. agyiates Drake and
Ruhoff, 1962, E. amoena Drake and Ruhoff, 1962, E. aporema Drake and Ruhoff, 1962, E.
exalla Drake, 1961, E. hylaea Drake and Ruhoff, 1962, E. koebeli (Drake, 1944), E.
nostratis (Drake, 1944), E. pacifica (Kirkaldy, 1908), E. recentis (Drake and Poor, 1937), E.
trivirgata (Horvath, 1925) and E. violina Drake and Ruhoff, 1962 (Drake and Ruhoff
1965a). However, in the Oriental Region, only a single species, E. recentis, has been
recorded from Malaysia, Singapore and Vietnam to date (Drake and Ruhoff 1965a, Drake
and Ruhoff 1965b, Tomokuni 2008).

Recently, | observed a collection of Tingidae from eastern Asia and found an undetermined
species of Eritingis in Japan and Thailand. After careful morphological examination, |
concluded that this undetermined species represents E. recentis. In this study, | recorded
E. recentis for the first time from Japan and Thailand.

Materials and methods

Dried specimens were used. Morphological characteristics of each specimen were
observed under a stereomicroscope (SZ60, Olympus, Tokyo, Japan). Specimens were
photographed using a digital microscope (Dino-Lite Premier M, Opto Science, Tokyo,
Japan). Distribution records of species were mapped using SimpleMappr (Shorthouse
2010). Geographical coordinates were obtained from Google Map. The terminology used in
this study generally follows that of Drake and Ruhoff (1965a) and Schuh and Weirauch
(2020). All specimens used for this study were deposited at the Kyushu University
Museum, Fukuoka, Japan (KUM).

Taxon treatment

Eritingis recentis (Drake and Poor, 1937)

Nomenclature

Perissonemia (Ulonemia) recentis: Drake and Poor 1937a: 5, new species and
description.

Perissonemia recentis: Drake and Poor 1937b: 400, distribution.

First record of the lace bug genus Eritingis (Drake and Ruhoff) (Hemiptera: ... 3

Ulonemia recens: Drake 1947: 229, new combination and distribution. Tomokuni 2008:
54, unjustified emendation.

Eritingis recens: Drake and Ruhoff 1962: 497, new combination and illustration; Drake
and Ruhoff 1965a: 209, catalogue; Drake and Ruhoff 1965b: 255, distribution and
illustration.

Eritingis recentis: Tomokuni 2008: 54, distribution.

Materials

a. scientificName: Eritingis recentis (Drake and Ruhoff, 1937); namePublishedin: 1937;
kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hemiptera; family:
Tingidae; genus: Enttingis; specificEpithet: recentis; scientificNameAuthorship: Drake and
Poor; isiandGroup: Ryukyu Islands; island: Okinawa Honto Island; country: Japan;
stateProvince: Okinawa; county: Kunigami-son; municipality: Yona; decimalLatitude:
26.75794048; decimalLongitude: 128.22516288; geodeticDatum: WGS84;
samplingProtocol: none specified; eventDate: 22-05-1965; individualCount: 2; sex:
female; lifeStage: adult; recordedBy: Shoichi Miyamoto; identifiedBy: Jun Souma;
dateldentified: 2021; institutionCode: KUM; basisOfRecord: PreservedSpecimen

b. scientificName: Eritingis recentis (Drake and Ruhoff, 1937); namePublishedin: 1937;
kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hemiptera; family:
Tingidae; genus: Enttingis; specificEpithet: recentis; scientificNameAuthorship: Drake and
Poor; continent: Eurasia; country: Thailand; stateProvince: Songkhla; county: Khao Noi;
decimalLatitude: 7.22280430; decimalLongitude: 100.56143999; geodeticDatum:
WGS84; samplingProtocol: none specified; eventDate: 22-06-1965; individualCount: 1;
sex: female; lifeStage: adult; recordedBy: Yorio Miyatake; identifiedBy: Jun Souma;
dateldentified: 2021; institutionCode: KUM; basisOfRecord: PreservedSpecimen

Cc. scientificName: Eritingis recentis (Drake and Ruhoff, 1937); namePublishedin: 1937;
kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hemiptera; family:
Tingidae; genus: Enttingis; specificEpithet: recentis; scientificNameAuthorship: Drake and
Poor; continent: Eurasia; country: Thailand; stateProvince: Songkhla; county: Songkhla;
decimalLatitude: 7.19543333; decimalLongitude: 100.59582610; geodeticDatum:
WGS84; samplingProtocol: none specified; eventDate: 23-06-1965; individualCount: 1;
sex: female; lifeStage: adult; recordedBy: Yorio Miyatake; identifiedBy: Jun Souma;
dateldentified: 2021; institutionCode: KUM; basisOfRecord: PreservedSpecimen

Diagnosis

Eritingis recentis can be distinguished from other species of Eritingis based on a
combination of the following characteristics: body length 3.0—3.2 mm, 3.3 times as long
as maximum width across hemelytra (Fig. 1a—d); rostrum reaching anterior margin of
metasternum (Fig. 2a); anterior margin of hood protruding anteriad in middle part (Fig.
2b); anterior margin of hemelytron nearly straight (Fig. 2c); costal area distinct, with a
single row of areolae throughout its length; subcostal area with 1-2 rows of areolae in
basal part and 2 rows in remaining parts; discoidal area with 5-6 rows of areolae at
widest part; sutural area with 9 rows of areolae at widest part; and female terminalia
pentagonal in ventral view (Fig. 2d).

Souma J

A B
Figure 1. doi

Habitus images of Eritingis recentis. A. female from Japan, dorsal view; B. female from Japan,
lateral view; C. female from Thailand, dorsal view; D. female from Thailand, lateral view. Scale
bar 1.0 mm.

Ch
Figure 2. | doi |

Detailed morphological images of Eritingis recentis. A. rostrum, ventral view; B. pronotum,
dorsolateral view; C. hemelytron, dorsolateral view; D. female terminalia, ventral view. Scale
bars 0.2 mm.

First record of the lace bug genus Eritingis (Drake and Ruhoff) (Hemiptera: ... 3

Distribution

Japan (Ryukyu Islands: Okinawa Honto Is.) (Fig. 3), Indonesia, Malaysia, Papua New
Guinea, Singapore, Thailand, Vietnam (Drake and Ruhoff 1965a, Drake and Ruhoff
1965b, Tomokuni 2008, present study).

; ct ~Japan:proper amid

ed

= Ryukyu Isls. ¢-
we ya , :
ge | _» » Okinawa Honto Is.
bee eae
pi XG
j : é 4
\ ¢ Thailand
AQ Pye \
ony aa. > ¢
ye ae ar i :
ap} Ly ~Y
s*\) * ors Pew
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Lt) 200 400 600 km
Figure 3. EES]

Collection sites of Eritingis recentis in Japan and Thailand examined in present study.

The discovery of Enitingis recentis from Japan represents the northernmost
distributional record of Eritingis species.

Biology

Adults have been collected in almost all seasons (Drake and Ruhoff 1965b, Tomokuni
2008, present study). The host plant for Eritingis recentis is unknown (Drake and
Ruhoff 1965a, Tomokuni 2008).

Taxon discussion

The above recorded specimens match well with the photographs of the holotype
(United States National Museum of Natural History 2021), illustrations (Drake and
Ruhoff 1962, Drake and Ruhoff 1965b) and original description (Drake and Poor
1937a) of Eritingis recentis described from Singapore.

Eritingis recentis is highly similar to E. agyiates in general appearance. The latter is
distinguished from the former by the body length 2.7 mm and the rostrum reaching the
anterior margin of mesosternum.

6 Souma J

Acknowledgements

| express my sincere thanks to Dr. Marcus Guidoti (Departamento de Zoologia,
Universidade Federal do Rio Grande do Sul, Porto Alegre-RS, Brazil) for his critical
comments on the manuscript. | am grateful to Dr. Munetoshi Maruyama, Mrs. Junna
Matsumoto (KUM), Dr. Satoshi Kamitani and Mr. Shunsuke Imada (the Entomological
Laboratory, Faculty of Agriculture, Kyushu University, Fukuoka, Japan) for their great
support in loaning and depositing the specimens. This work was partially supported by a
Grant-in-Aid for JSPS Fellows (JP20J20483) to the author from the Japan Society for the
Promotion of Science, Tokyo, Japan. | would like to thank Editage (www.editage.jp) for
English language editing.

References

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The Philippine Journal of Science 62 (1): 1-19.

° Drake CJ, Poor ME (1937b) Some Tingitidae (Hemiptera) from Oceania. lowa State
College Journal of Science 11 (4): 397-404.

° Drake CJ (1947) Tingidae (Hemiptera) from the Orient and South Pacific. Musee
Heude, Notes d'Entomologie Chinoise 11 (7): 225-231.

° Drake CJ, Ruhoff FA (1962) Synonymic notes and descriptions of new Tingidae
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° Drake CJ, Ruhoff FA (1965a) Lacebugs of the world, a catalog (Hemiptera: Tingidae).
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° Drake CJ, Ruhoff FA (1965b) Lacebugs from New Guinea, Borneo, Solomons, and
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° Schuh RT, Weirauch C (2020) True bugs of the world (Hemiptera: Heteroptera).
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° Shorthouse DP (2010) SimpleMappr, an online tool to produce publication-quality point
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° Tomokuni M (2008) A small collection of Tingidae (Insecta, Heteroptera) from Sarawak,
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° United States National Museum of Natural History (2021) Perissonemia recentis Drake

& Poor, 1937. Holotype. http://n2t.net/ark:/65665/359ca28b9-fd2c-4861-
a6f2-31d93df09a21. Accessed on: 2021-1-11.