belvoisia

Century Dictionary and Cyclopedia

1. n. A genus of two-winged flies, of the family Tachinidœ, comprising numerous genera, parasitic on other insects. They are most difficult to distinguish on account of the uniformity of their somber colors and the similarity of their structural characters. The only species of Belvoisia in the United States is exceptional by the beauty of its coloration, the third and fourth abdominal joints being bright golden yellow, with only the hind borders black. It has been described as B. trifasciata (Fabricius), and is parasitic on the green-striped maple-worm, Anisota rubicunda, and allied species.