Membranous and folded - the inner part of the wing
Mouthparts are for chewing
BlatellaGermanica - 12-16 mm long, known as Croton Bug and German cockroach
Blatta Orientalis - • dark brown to almost black
Vestigal wings - female
In male - Wings do not reach the tip of the abdomen
Blatta Orientalis - also known as oriental cockroach, "black beetle" & "water bug"
Innerwing - folds like fan & membranous
Outerpartofthewing - narrow, leather & thick
PeriplanetaFuliginosa - these are smoky brown cockroach
PeriplanetaAmericana - known as American Cockroach and water bug. It is 1 1/2 inches, large, chestnut in color
P.Australasian - resembling P. Americana & known as Australian cockroach.
Australiancockroach - this species can survive indoors in subtropical areas when colder temperature are present.
SupeliaSupelectilium - they are simple metamorphosis and eggs are laid in ootheca.
Blatella Asahinai - known as Asian Cockroach
Adult Asian Cockroach - they have longer and narrower wings than German cockroach.
Scavenger - they feed on excrement, sputum, decaying matter, human and animal food in which it serves as vehicle for transmitting bacteria, virus, protozoa
Omnivorous - they feed on great variety of food with partiality on sugary and starchy food, but
will eat anything from dead insects to fresh and dried flesh, blood, vegetable, cheese, grain
products etc.
Gluttenous - even when stomach is full, when they find a better food, they disgorge stomach
Nocturnal – they are active at night and hide in dark places during day time.
Fungalinfection – aspergillosis (lung infection)
Australian cockroach - this species can vector salmonella