Dancing Fly

A tiny fly dances at the edge of a peony leaf–an obvious visual display.


I have seen this species of fly before–it is a black scavenger fly, possibly in the genus Sepsis.


From the condition of its abdomen I think it might be a gravid female.  But why would a gravid female dance like this?  It would seem to be some kind of mating dance.  It doesn’t make sense.


Then it moved to the flower bud and continued to dance, stopping briefly to sop up some liquid.


About the roused bear

Nature photographer from central Iowa.
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