The American cockroach is the largest of the house-infesting cockroach.
Brown banded cockroaches get their name from the two lighter bands they
have across their dark brownish bodies. In addition to the distinctive banding,
males have full wings, which reach beyond the tip of their rather pointed
abdomens, but females have underdeveloped wings, much shorter than their
broad, rounded abdomens. The lighter band markings are much more distinct
in nymphs than in adults of either sex.
Oriental Cockroaches, Blatta orientalis (L.), are large very dark (almost black,
but sometimes dark reddish-brown), shiny cockroaches which live in sewers
and similar wet, decaying organic matter. They are sometimes called ”water
bugs“ because they come out of drains, and ”black beetle cockroaches“
because of their smooth, dark bodies. Males are about 1 inch long, with wings
that cover only about 3/4 of their abdomen; females are about 1 1/4 inch long,
and have only short stubs of wing pads.
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