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

Discussion, insects and people from the 2018 BugGuide Gathering in Virginia, July 27-29

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 Ceraturgus aurulentus

Robber Fly - Ceraturgus aurulentus fly - Ceraturgus aurulentus Robber Fly - Ceraturgus aurulentus Ceraturgus aurulentus - female Ceraturgus aurulentus - female Asilidae - Ceraturgus aurulentus Ceraturgus aurulentus Asilid - Ceraturgus aurulentus - female
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 Stenopogoninae
Genus Ceraturgus
Species aurulentus (Ceraturgus aurulentus)
Explanation of Names
Ceraturgus aurulentus (Fabricius 1805)
9-11 mm(1)
distinctive species, readily recognized by its small size, rich golden pollen, bicolored femora and tibiae, and short, thin, parallel-sided proboscis(1)
Massachusetts south to Georgia, west to Michigan(1)(2)
Jul-Sep (mostly Aug-Sep)(1)
Life Cycle
Little known. Two of three BugGuide records to date (as of October 2013) came to lights. Apparently oviposits in soil (BugGuide image below). See images below for discussion of habitat, appearance, behavior:
Rare species: fewer than two dozen specimens collected in the past 200 years.(1) BugGuide contributors found them in three localities, Aug-Sep 2013 (perhaps the first records since the 1980's)