Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Family Chloropidae - Frit Flies

Black Fly ? - Oscinella fly - Chaetochlorops inquilinus Fly - Parectecephala Fly - Elachiptera costata - female Insect collected in vegetative little bluestem grass Chloropidae, frontal fly Meromyza
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Family Chloropidae (Frit Flies)
Other Common Names
Grass Flies, Stem-miner Flies, Eye Gnats, Pecker Gnats
Explanation of Names
Chloropidae Rondani 1856
~280 spp. in our area, close to 3,000 spp. in ~200 genera worldwide(1)
Color variable, some species blackish or grayish, some brightly colored with black and yellow. Ocellar triangle usually large, shining.
Very common in meadows and grassy areas, though they may be found in a variety of habitats
In most spp., larvae feed on grass stems of the families Poaceae, Cyperaceae, and Typhaceae. Some are serious pests of cereals.
Some spp. are saprophages, scavengers, parasites, or predators.
Life Cycle
Most hibernate as larvae; some hibernate as imagos.
Some spp. are attracted to the eyes (the so-called 'eye gnats,' vectors of yaws and pink eye)
Some are pollinators of orchids or Araceae flowers.
Print References
Internet References
Works Cited
1.Thompson F.C., Pape T., Evenhuis N.L. (2013) Systema Dipterorum, Version 1.5
2.Peterson First Guide to Insects of North America
Richard E. White, Christopher Leahy, Roger Tory Peterson. 1998. Houghton Mifflin Co.
3.Borror and DeLong's Introduction to the Study of Insects
Norman F. Johnson, Charles A. Triplehorn. 2004. Brooks Cole.