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

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

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

National Moth Week 2020 photos of insects and people.

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

Discussion, 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

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

Previous events


Species Exoprosopa decora

Exoprosopa decora? - Exoprosopa decora Exoprosopa decora? - Exoprosopa decora A worn Exoprosopa decora? - Exoprosopa decora Another Exoprosopa decora, I think... - Exoprosopa decora Hemipenthes? - Exoprosopa decora bombyliid - Exoprosopa decora Fly/Bee/Wasp? - Exoprosopa decora Bee Fly, Exoprosopa sp? - Exoprosopa decora
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Superfamily Asiloidea
Family Bombyliidae (Bee Flies)
Subfamily Anthracinae
Tribe Exoprosopini
Genus Exoprosopa
Species decora (Exoprosopa decora)
Synonyms and other taxonomic changes
Explanation of Names
Exoprosopa decora Loew 1869
10 to 15 mm long.
Head: Brown with a few white scales. Eyes large, hind border with a slight, round indent at middle and a line of white pile, sometimes reaching to top of head. Face conical, projecting, proboscis short.
Antenna: Very small, low on face, adjacent to facial cone. Brown, often the bristle (arista) is white.
Thorax: Brown scaly, with some flecks of white. Darker brown, longer fringe at side edges before wing base.
Wings: Dark brown with pale band near base, another clear, jagged band across mid-wing, not quite reaching outer margin (costa). Tip clear, except along outer margin.
Legs: Long, thin. Dark brown, sometimes with white scales on thighs (femora). Short spines on shins (tibiae).
Abdomen: Black, scaly with a fringe of dark hairs along edges. Variable white scales – V-shaped longitudinally; white only on 4th segment at sides, or entirely devoid of white scales.
Forest edges and meadows.
Late June to August.
Adults feed on flower nectar. Larvae feed on wasp larvae.
Holotype as Exoprosopa decora female by Loew, 1869. Type Locality: Wisconsin. In the Museum of Comparative Zoology, Harvard, Cambridge, Massachusetts. Type #12630.
Print References
Very few references; other than keys, there are no descriptions.
Berliner Entomologische Zeitschrift, 1869 by Loew, Vol. 13, pg. 13.
The Canadian Entomologist, 1892, Vol. 24 by Coquillett, pg. 123.
Canadian Journal of Arthropod Identification, 2008, #6 Bee Flies by Kits, et al., pg. 11.