The family name Stratiomyidae means “soldier fly like”. Adults are black and elongated, and look a bit like a mirid bug except that their wings don’t overlap. They do not have functional mouth parts, thus they do not eat waste or food themselves, feeding on nectar and pollen. They generally don’t go into houses, nor do they bite or transmit diseases.
The larva are pale cream grubs with segmented bodies, becoming yellow as they grow. They can get to 25 mm in length. Just before pupating they become much darker,
The eggs are cream or pale yellow, and laid in masses of as many as five hundred.
Adult size: 12 mm