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


Family Piophilidae - Cheese Skippers and kin

Skipper Fly - Prochyliza xanthostoma - male Skipper Fly Interactions - Prochyliza xanthostoma Lauxaniid? - Actenoptera fly associated with carrion - Prochyliza xanthostoma - male Waltzing Fly - Prochyliza xanthostoma - female Waltzing Fly - Prochyliza xanthostoma - female Fly on Sycamore - Protopiophila latipes small fly sp. - Prochyliza xanthostoma
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Tephritoidea
Family Piophilidae (Cheese Skippers and kin)
Explanation of Names
Piophilidae Macquart 1835
The common name refers to the larva's ability to make long jumps by grasping its "tail" in its mouth and then suddenly releasing it. They generally breed in rancid fats. (Eric Eaton)
~60 spp. in 14 genera in our area, >80 spp. in 14 genera total(1)
3-6 mm(2)
worldwide; by far most diverse in the temperate and boreal regions of the Northern Hemisphere; many spp. of Piophilinae are Holarctic, and a few are cosmopolitan(2)
In the Mediterranean island of Sardinia, the larvae are intentionally introduced into pecorino cheese to produce the characteristic casu marzu ("rotten cheese" in Sardinian).
Works Cited
1.Order Diptera Linnaeus, 1758. In: Zhang Z.-Q. (ed.) Animal biodiversity: An outline of higher-level classification...
Pape T., Blagoderov V., Mostovski M.B. 2011. Zootaxa 3148: 222–229.
2.Manual of Nearctic Diptera Volume 2
Varies for each chapter; edited by J.F. McAlpine, B.V. Petersen, G.E. Shewell, H.J. Teskey, J.R. Vockeroth, D.M. Wood. 1987. Research Branch Agriculture Canada.