About Musca autumnalis De Geer, 1776
Musca autumnalis, commonly known as the face fly, is closely related to the housefly, and similar in overall appearance but slightly larger. Adult face flies average 7–8 mm in length, are grey in color, have four dark stripes on the thorax, and an abdomen patterned grey and black. Like many true flies, male face flies have eyes that almost touch when viewed from above. The species is widespread across most of Europe, Central Asia, northern India, Pakistan, China, and parts of North Africa. It was introduced to North America around the 1940s, and now ranges from southern Canada through most temperate regions of the United States. It has also been introduced to St. Helena Island in the South Atlantic.
