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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Ants, Bees and Stinging Wasps » Cuckoo Wasps & allies (Chrysidoidea) » Flat Wasps (Bethylidae) » Pristocerinae » Pseudisobrachium

Genus Pseudisobrachium

Classification · Synonyms and other taxonomic changes · Explanation of Names · Numbers · Identification · Range · Life Cycle · Remarks · Works Cited

Pitfall catch - Pseudisobrachium - female

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Hymenoptera (Ants, Bees, Wasps and Sawflies)

No Taxon (Aculeata - Ants, Bees and Stinging Wasps)

Superfamily Chrysidoidea (Cuckoo Wasps & allies)

Family Bethylidae (Flat Wasps)

Subfamily Pristocerinae

Genus Pseudisobrachium

Synonyms and other taxonomic changes

Isobrachium Ashmead, 1893

Monepyris Kieffer, 1905

Xestobethylus Cameron, 1909

Plutobethylus Kieffer, 1910

Lyssepyris Kieffer, 1913

Xantepyris Kieffer, 1913

Xanthepyris Kieffer, 1914

Parisobrachium Kieffer, 1914

Afrisobrachium Benoit, 1957

Edapholigon Ogloblin, 1963

Explanation of Names

Pseudisobrachium Kieffer, 1904

Numbers

>30 spp. in our area(1), hundreds worldwide (mostly undescribed) (Azevedo 2008)

Identification

Males: body size usually smaller than 15 mm; hypopygium/subgenital plate not deeply divided into two lobes; clypeus with median lobe clearly defined, varying shapes; dorsal pronotal area long, lateral and anterior margin almost same size, but always distinct; eyes very setose; clypeus usually trapezoidal.(2)

Females: mesonotum distinctly very elongate, much longer than wide (thorax appears to consist of 3 equally long segments); eyes with a single facet or absent.(2)

Range

worldwide but apparently most diverse in the Neotropics (Azevedo 2008)

Life Cycle

Some were found associated with ant and coleopteran larvae but there is still no confirmation that these larvae are used as hosts (Azevedo 2008).

Remarks

Many are nocturnal and can be commonly collected with light traps.(2)

Works Cited

1.	Nearctic Hymenoptera other (Discover Life's IDnature guide)

2.	Global guide of the flat wasps (Hymenoptera, Bethylidae) Azevedo C. O., I. D. C. C. Alencar, M. S. Ramos, D. N. Barbosa, W. D. Colombo, J. M. R. Vargas, and J. Lim. 2018. Magnolia Press, Zootaxa.

Contributed by Jim McClarin on 20 May, 2006 - 9:42am
Additional contributions by Bbarnd, v belov, Arturo Santos
Last updated 31 July, 2020 - 5:48pm

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