Читать книгу The Structure and Life-history of the Cockroach (Periplaneta orientalis) - L. C. Miall - Страница 15

1. P. orientalis (Common Cockroach, Black Beetle). Wing-covers and wings not reaching the end of the abdomen in the male; rudimentary in the female.

2. P. americana (American Cockroach). Wing-covers and wings longer than the body in both sexes.