Although B. germanica has wings, it can barely fly, although it may glide when disturbed. Often roaches fly to escape a threat. Droppings: German cockroaches leave small, brownish drops of stool where they eat and live. Although it has fully developed wings, it doesn’t fly. Wings: While adult German cockroaches have wings, they rarely fly, preferring to run. It is very closel… While other roach species are known for flying or jumping, German cockroaches are known for running quickly and hiding–they spend up to 75% of their lives in hiding. Though much has been written about cockroach’s supposed... Mating. In colour it varies from tan to almost black, and it has two dark, roughly parallel, streaks on the pronotum running anteroposteriorly from behind the head to the base of the wings. The German cockroach (Blattella germanica) is a small species of cockroach, typically about 1.1 to 1.6 cm (0.43 to 0.63 in) long. Do German Cockroaches Fly? Though adults of both sexes have well-developed wings, these roaches rarely fly and prefer to scamper and crawl across surfaces instead. Self-Protection. Do German Cockroaches Bite? Do German Cockroaches Smell? Some cockroach males become active flyers during breeding season, when they travel short and long distances in... Food and Shelter. German cockroaches can’t fly even though they have wings. They’re fast runners but mostly stick to their feet. Why Do They Fly? You can tell a male German cockroach from a female German cockroach by the wings. Size: Adults grow to a length of 13-16 mm. The German cockroach has wings that are held back over its body. Signs of German Cockroaches Visual: If you see a cockroach flashing around food or water sources, there most likely are more around. Of the few species of cockroach that are domestic pests, it probably is the most widely troublesome example. Voracious omnivores, cockroaches are known to feed on plants and meat. The male’s wings are longer, completely covering the tip of its abdomen.