Cockroach
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Cockroaches are insects belonging to the order Blattodea. About 30 cockroach species out of 4,600 are associated with human habitats. Some species are well-known pests.
A Turkestan cockroach (Periplaneta lateralis) next to an approximately 108-million-year-old fossil cockroach from the Cretaceous Period
A 40- to 50-million-year-old cockroach in Baltic amber (Eocene)
Domino cockroach Therea petiveriana, normally found in India
Head of Periplaneta americana
Oriental cockroach
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The oriental cockroach, also known as the waterbug or black cockroach, is a large species of cockroach, adult males being 18–29 mm and adult females being 20–27 mm. It is dark brown or black in color
Cockroach
…thirty species, four are most commonly encountered as pests: the German cockroach (Blattella germanica), American cockroach (Periplaneta americana), oriental cockroach (Blatta orientalis), and brown-banded cockroach (Supella longipalpa). Pest cockroaches feed on human and pet food and can leave an offensive odor. They…
Blatta orientalis male from Botevgrad, Bulgaria 02
A colony, containing many different life stages
Nymph (immature stage with no wings)
Adult male, with semi-functional wings