Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Superfamily Asiloidea

small robber fly? - Holcocephala fusca Bombyliid - Hemipenthes Large Bee Fly - Thevenetimyia Bee Fly Bombylius major - Bombylius major Small Bee Fly Robber fly? - female Exoprosopa fascipennis? - Exoprosopa Orange Bee Fly - maybe Lordotus striatus? - Villa
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Superfamily Asiloidea
The Asiloidea can be difficult to characterize morphologically. They have the empodia usually setiform or absent and cell cup elongate, with vein CuA2 ending freely on the wing margin or meeting with vein A1 at or near the wing margin, perhaps except in Scenopinidae. The number of flagellomeres does not exceed 4. Bombyliidae (and Mythicomyiidae) have cell bm with 3 distal corners and vein M3 often absent. Mydidae, Apioceridae, and Asilidae have the vertex of the head at least slightly concave between the eyes and the ocelli; dichoptic in both sexes. In Therevidae, Apsilocephalidae, and Scenopinidae, the males are usually holoptic (1).
Works Cited
1.Manual of Nearctic Diptera Volume 1
Varies for each chapter; edited by J.F. McAlpine, B.V. Petersen, G.E. Shewell, H.J. Teskey, J.R. Vockeroth, D.M. Wood. 1981. Research Branch Agriculture Canada.