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Calendar
BugGuide Gathering
Pack Forest
Washington State
July 10-12, 2009
Details...

Photos from the 2008 gathering in Tennessee
 
Photos from the 2007 gathering in Minnesota

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Family Mydidae - Mydas Flies

Mydas Fly? - Mydas - male Large blue-winged fly - Mydas clavatus Mydidae Big Black Bug ;-) What Am I - Mydas tibialis Mydas Fly - Mydas tibialis Wasp? Mydas fly on buckwheat - Nemomydas Mydas Fly on Buckwheat - Pseudonomoneura
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Orthorrhapha" (Brachycera excluding Aschiza and Schizophora))
Superfamily Asiloidea
Family Mydidae (Mydas Flies)
Size
1-6 cm
Identification
Large flies, often wasp mimics.
Range
Worldwide in temperate and tropical regions.
Habitat
Variable, often open habitats, but some do live in tropical rainforests.
Season
Summer in temperate regions.
Food
Some adults, especially males, take nectar. Adults, long thought to be predatory, are perhaps not! Some females do not feed as adults. Larvae are predators of larval beetles, mostly.
Life Cycle
Eggs are laid in soil or dead wood with beetle larvae.
Remarks
Alcock, pp. 124-126, discusses Batesian mimicry of large spider wasps (Pompilidae: genera Pepsis, Hemipepsis, called "Tarantula Hawks") by Mydas flies (1)

Seems that Mydas clavatus is likely a mimic of the Pompilid wasp, Anoplius, which see.

Guide TBA--PC (print references)
Internet References
Mydas Fly Home Page--excellent discussion of the family
Works Cited
1.Sonoran Desert Summer
By John Alcock, Marilyn Hoff Stewart