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The American cockroach (Periplaneta americana), also known as the waterbug,or misidentified as the palmetto bug  is the largest species of common cockroach, and often considered apest. None of the Periplaneta species are endemic to the Americas; despite the name, P. americana was introduced to the United States from Africa as early as 1625.  They are now common in tropical climates because human activity has extended the insect's range of habitation, and global shipping has transported the insects to world ports including theSouthern United StatesCanary Islands, southern SpainGreeceCyprusTaiwanIndiaSouth Africa and Azores(Portugal).
Periplaneta americana

Periplaneta americana

CharacteristicsEdit

American cockroach adults grow to an average length of around 4 cm (1.6 in) and about 7 mm (0.28 in) tall.[5] They are reddish brown and have a yellowish margin on the body region behind the head. Immature cockroaches resemble adults except they are wingless.

The cockroach is divided in three sections; the body is flattened and broadly oval, with a shield-like pronotum covering its head. A pronotum is a plate-like structure that covers all or part of the dorsal surface of the thorax of certain insects. They also have chewing mouth parts, long, segmented antennae, and leathery fore wings with delicate hind wings. The third section of the cockroach is the abdomen.

The insect can travel quickly, often darting out of sight when someone enters a room, and can fit into small cracks and under doors despite its fairly large size. It is considered one of the fastest running insects.

In an experiment carried out at the University of California, Berkeley in 1991, a Periplaneta americana registered a record speed of 5.4 km/h (3.4 mph), about 50 body lengths per second, which would be comparable to a human running at 330 km/h (210 mph).


It has a pair of large compound eyes, each having over 2000 individual lenses, and is a very active night insect that shuns light.

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