Thick-headed Fly
Genus Zodion

zodion fly
Male and female Thick-headed Fly found at Bear River MBR.  Zodion are endoparasites of bees and
wasps; that is, the larvae feed inside their hosts until the hosts die and then the Zodion emerge (the stuff
scary movies are made of).  © Carol Davis 6-9-2013

thick-headed fly Zodion
How can anything so cute be so menacing?  These mating flies were everywhere this day seeming
to particularly favor these little flowers.  © Carol Davis 6-9-2013

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