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Discussion, insects and people from the 2018 BugGuide Gathering in Virginia, July 27-29

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Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

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Genus Megaselia

Megaselia scalaris - female Tiny Fly - Megaselia scuttle fly - Megaselia - female Fly - Megaselia Diptera 12 (July 2010) - Megaselia aurea - male Phorid - Megaselia Tiny fly of Leavenworth - Megaselia scuttle fly - Megaselia - female
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Aschiza")
Superfamily Platypezoidea
Family Phoridae (Scuttle Flies)
Subfamily Metopininae
Genus Megaselia
Explanation of Names
Megaselia Rondani 1856
~190 described & many undescribed spp. in our area; nearly half (~1,500 spp.) of the world's described Phoridae (and perhaps ten times as many undescribed) belong to this genus
larvae in moist decaying organic material, sanitation filter beds, sludge in sewer pipes and trash cans in public washrooms and homes, lab cultures of Drosophila, fresh or fermenting fruit, and sometimes in external wounds or in the digestive tract of animals, including humans
year-round indoors
many species are scavengers; some are herbivores, predators, parasites, or parasitoids
Larvae of M. scalaris display a unique behavior of swallowing air when exposed to a small pool of liquid. This allows them to float upon immersion, and may prevent drowning in natural environment. (Harrison & Cooper 2003)
Internet References
overview of habits and biology (Christensen 1998)