Hancock County, Indiana, USA
July 3, 2011
Size: 3 mm
Collected at UV light.
I initially keyed to M. morula based on what appears to be 3 ridges on the hind tibia. However, the last ridge is somewhat shorter than the previous ones, and if you consider it to be rudimentary, it keys to M. aspersa.
Liljeblad: "Posterior tibiae with two parallel, oblique ridges and rudiment of a third ridge, this third ridge sometimes rather long, but very narrow and usually more oblique than the others"