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Persona Of Roy
Vol 19, Page 1
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Foraging Behavior and Colony Cycle of Agelaia vicina (Hymenoptera: Vespidae; Epiponini)
Vol 19, Page 4
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A review of the dacetine ants of Guyana (Formicidae: Myrmicinae)
Vol 19, Page 12
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Two new species of the strigatus species complex of the ant genus Cyphomyrmex (Hymenoptera: Formicidae) from Costa Rica and Panama
Vol 19, Page 44
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Taxonomic contribution to the aurita group of the ant genus Azteca (Formicidae: Dolichoderinae)
Vol 19, Page 51
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Social Behaviours in Solitary Bees: Interactions Among Individuals in Xeralictus bicuspidariae Snelling (Hymenoptera: Halictidae: Rophitinae)
Vol 19, Page 66
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Plega hagenella (Neuroptera: Mantispidae) Parasitism of Hylaeus (Hylaeopsis) sp. (Hymenoptera: Colletidae) Reusing Nests of Trypoxylon manni (Hymenoptera: Crabronidae) in Trinidad
Vol 19, Page 77
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Chartergellus golfitensis West-Eberhard: a new species of neotropical swarm-founding wasp (Hymenoptera: Vespidae, Polistinae) with notes on the taxonomy of Chartergellus zonatus Spinola
Vol 19, Page 84
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The description of Banacuniculus Buffington, new genus (Hymenoptera: Figitidae: Eucoilinae)
Vol 19, Page 94
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Phylogenetic Relationships Of Pluroides Porteri, A New Genus And Species Of Plumariidae From Argentina (Hymenoptera: Chrysidoidea)
Vol 19, Page 113
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The Transcausian species of Coccobius Ratzeburg 1852 (Chalcidoidea: Aphelinidae), with the description of three new species from Georgia
Vol 19, Page 121
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Host Range and Offspring Quantities in Natural Populations of Nasonia vitripennis (Walker, 1836) (Hymenoptera: Chalcidoidea: Pteromalidae)
Vol 19, Page 128
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Rhopalum nasale, a new species from Australia (Hymenoptera: Crabronidae)
Vol 19, Page 139
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Colony Social Organisation of Halictus confusus in Southern Ontario, with Comments on Sociality in the Subgenus H. (Seladonia)
Vol 19, Page 144
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Ultrastructure of Scutellar Sensilla in Aphytis melinus (Hymenoptera: Aphelinidae) and Morphological Variation across Chalcidoidea
Vol 19, Page 159
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A new species of Lysiphlebus Forster 1862 (Hymenoptera: Braconidae, Aphidiinae) attacking soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) from China
Vol 19, Page 179
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Chromosomes of Blastophaga psenes (Hymenoptera: Agaonidae)
Vol 19, Page 187
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Ian David Gauld 25 May 1947-12 January 2009 OBITUARY
Vol 19, Page 189