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

National Moth Week photos of insects and people. Here's how to add your images.

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

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


Genus Gymnosoma

Gymnosoma Gymnosoma sp. - Gymnosoma Gymnosoma 2 - Gymnosoma Small red fly - Gymnosoma orange and black fly on Eriophyllum lanatum - Gymnosoma Unusual-looking fly - Gymnosoma Fly Species? - Gymnosoma Perhaps Genus Gymnosoma - Gymnosoma
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Calyptratae)
Superfamily Oestroidea
Family Tachinidae (Parasitic Flies)
Subfamily Phasiinae
Tribe Gymnosomatini
Genus Gymnosoma
Explanation of Names
Gymnosoma Meigen 1803
'naked body' (referring to the lack of hair on abdomen)
6 spp. in our area(1)
8-10 mm
worldwide (except Australasia)(2), incl. most of NA(1)
adults on flowers in fields, roadsides; often on wild carrot(3)
May-Aug in MN; G. fulginosum in NC: Apr-Nov (lower elevations), May-Sep (mountains)(4)
Hosts are Pentatomidae bugs
Adults take nectar.
Life Cycle
Eggs are laid on adult and larval stink bugs and shield bugs Pentatomidae (3).
See Also
other brightly-colored tachinids such as Trichopoda, Gymnoclytia
Internet References