About Melanophora roralis (Linnaeus, 1758)
Melanophora roralis is 3–5.5 millimetres (0.12–0.22 in) in length. It is black, with hairy antennae and a shiny thorax. Females of this species have distinctive white spots at the tips of their wings. This species was introduced to North America from Europe, and its range extends from Southern Ontario to Chile and Argentina. Adults of M. roralis fly from mid-May to October. They inhabit old forests and damp shore-adjacent areas. Females lay between 189 and 238 eggs over a period of 6.5 to 7.5 hours. Pupation of this species takes up to 21 days. M. roralis is a parasite of Porcellio scaber.
