Adults range in size from 1/4 – 1/2 inch in length and have one pair of wings. The colors vary from black, metallic blue, green and yellowish-brown.
Although they seldom cause structure damage, they can be annoying because of their constant buzzing. They are attracted to light, so are often seen flying around windows.
The diet consists of such things as dead fish, meat, carrion, animal manure, garbage and rotting vegetable matter.
The blow fly lays 100 – 180 eggs in their food source. The eggs normally hatch in less than one day. Developing rapidly, the blow fly will reach its adult form in 10 – 20 days.