Sarcophaga sp. (Flesh Fly).
Size: approx. 5-10 mm. Photo: 06/21/11, 8 am.

The 'flesh fly' doesn't have a great reputation but it is obviously a very useful insect. Its genus Sarcophaga has about 80 species in North America, which are extremely difficult to distinguish. They have grayish/black stripes on their thorax, which become checkered on the "tail end". They lay their eggs in decaying animals or excrement. Within a few days the eggs turn into maggots which burrow into the soil, pupate, and wait for spring to arrive. Let's move on.