Pogonias group

Classification · Synonyms and other taxonomic changes · Numbers · Identification · Works Cited

Efferia [Pogonioefferia] pogonias - Efferia pogonias - male

Pogoniefferia nemoralis? - Efferia - male

Efferia prairiensis - Efferia plena - female

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Diptera (Flies)

No Taxon (Orthorrhapha)

Superfamily Asiloidea

Family Asilidae (Robber Flies)

Subfamily Asilinae

Genus Efferia

No Taxon Pogonias group

Synonyms and other taxonomic changes

Pogonioefferia Artigas & Papavero 1997

Numbers

40 spp. in our area, 43 total(1)

Identification

Males have distinctive up-curved tip of abdomen. Females have tapered abdomens. Both have dense white hairs. Albibarbefferia is somewhat similar. Compare also Nerax group.

The following information is based on the modified Key to Eastern Species: (2) For info on the listed reference terms see the wing diagrams here.

1) - Furcation of the third vein distinctly before the base of the second posterior cell making the second submarginal cell long;

2) - Wings with two submarginal cells; Wing vein R4 with recurrent vein arising its junction with R5; recurrent branch short, (stump vein) ending in cell r2+3. (One exception is Efferia bryanti, which have wing veins that match the Efferia/anomala group.)

5) - Rear of thorax and scutellum with abundance of bristles, male abdominal segments six and seven silvery, female with tip of oviduct furcate from above = (Pogonioefferia/rufibarbis group)

Works Cited

1.	Information on robber flies, compiled by F. Geller-Grimm

2.	Herschel Raney's Random Natural Acts: Robber Flies

Contributed by Cotinis on 28 July, 2006 - 10:12pm
Additional contributions by hraney, v belov, Robert H. Biagi
Last updated 24 May, 2021 - 7:46pm

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