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  2. American cockroach - Wikipedia

    en.wikipedia.org/wiki/American_cockroach

    The American cockroach (Periplaneta americana) is the largest species of common cockroach, and often considered a pest. In certain regions of the U.S. it is colloquially known as the waterbug, [1] though it is not a true waterbug since it is not aquatic. It is also known as the ship cockroach, kakerlac, and Bombay canary. [2]

  3. Cockroach - Wikipedia

    en.wikipedia.org/wiki/Cockroach

    Cockroaches are generalized insects with few special adaptations, and may be among the most primitive living Neopteran insects. They have a relatively small head and a broad, flattened body, and most species are reddish-brown to dark brown. They have large compound eyes, two ocelli, and long, flexible antennae.

  4. German cockroach - Wikipedia

    en.wikipedia.org/wiki/German_cockroach

    The German cockroach (Blattella germanica), colloquially known as the croton bug, is a species of small cockroach, typically about 1.1 to 1.6 cm (0.43 to 0.63 in) [ 1 ][ 2 ] long. In color 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 ...

  5. Madagascar hissing cockroach - Wikipedia

    en.wikipedia.org/wiki/Madagascar_hissing_cockroach

    The Madagascar hissing cockroach (Gromphadorhina portentosa), also known as the hissing cockroach or simply hisser, is one of the largest species of cockroach, reaching 5 to 7.5 centimetres (2 to 3 inches) at maturity. They are native to the island of Madagascar, which is off the African mainland, where they are commonly found in rotting logs.

  6. How cockroaches spread around the globe to become the ... - AOL

    www.aol.com/news/cockroaches-spread-around-globe...

    Cockroaches are experts at surviving indoors, hiding in kitchen pipes or musty drawers. A new study uses genetics to chart cockroaches' spread across the globe, from humble beginnings in southeast ...

  7. Blattodea - Wikipedia

    en.wikipedia.org/wiki/Blattodea

    Blattodea is an order of insects that contains cockroaches and termites. [1] Formerly, termites were considered a separate order, Isoptera, but genetic and molecular evidence suggests they evolved from within the cockroach lineage, cladistically making them cockroaches as well. [2] The Blattodea and the mantis (order Mantodea) are now all ...

  8. Sexual dimorphism - Wikipedia

    en.wikipedia.org/wiki/Sexual_dimorphism

    t. e. Sexual dimorphism is the condition where sexes of the same species exhibit different morphological characteristics, including characteristics not directly involved in reproduction. [1] The condition occurs in most dioecious species, which consist of most animals and some plants.

  9. Oriental cockroach - Wikipedia

    en.wikipedia.org/wiki/Oriental_cockroach

    Oriental cockroach. The oriental cockroach (Blatta orientalis), also known as the waterbug (as they live in damp areas) or black cockroach (as their bodies are mostly dark), [1] is a large species of cockroach, adult males being 18–29 mm (0.71–1.14 in) and adult females being 20–27 mm (0.79–1.06 in). [2] It is dark brown or black in ...