Bee Identification, Rochester NY
It is a bee in the genus Megachile, in the family Megachilidae, not Halictidae.

Megachile are leafcutter bees, and have scopal (pollen carrying) hairs on their bellies (ventral side of their abdomen). 

Most bees in the family Halictidae have scopae for carrying pollen on their legs, though they may have hairy bellies with substantial pollen carrying capacity.