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 of 2018 gathering

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


aterrimus or instabilis

Tachinid #2 - Archytas Bg1412 C2755 - Archytas  A big black fly on a leaf in New Jersey (Tachinidae: Archytas) - Archytas Tachinid Fly - Archytas Tachinid Fly? - Archytas Fly - Archytas Tachinidae - Archytas - female 182120 Archytas - Archytas
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 Tachininae
Tribe Tachinini
Genus Archytas
No Taxon aterrimus or instabilis
Dull to shining black thorax (including scutellum), shiny black to dark blue abdomen, black hairs on side of face.
Widespread and common east of Rocky Mountains, rare in Southwest.
Most of the flies placed here are Archytas aterrimus. A. instabilis is rare.