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

2018 BugGuide Gathering in Virginia July 27-29: Registration and Discussion

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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Holcocephala calva

Robber Fly, Holcocephala sp. - Holcocephala calva Small Robber Fly - Holcocephala calva Small Fly - Holcocephala calva Fly - Holcocephala calva Robber Fly - Holcocephala calva Tiger Fly ? - Holcocephala calva Holcocephala but which one? - Holcocephala calva Asilid - Holcocephala calva
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 Trigonomiminae
Genus Holcocephala
Species calva (Holcocephala calva)
Explanation of Names
Holcocephala calva (Loew 1872)
NY-FL to MI-KS-TX(1)