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What is a Cockroach?

Wed, May 19, 2010

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The word cockroach is rooted in the Spanish cucaracha. The cockroach is characterizable by a flat oval body, long hairlike antennae, and a shiny black or brown leathery integument. The head is directed downward, and the mouthparts aim to the back instead of forward or downward as is the case with most other insects. The male frequently has two pairs of wings, unlike the female, who in some species, is wingless or possesses vestigial wings. The female creates eggs in egg cases (known as oothecae). These are sometimes held coming from her body or could be held in protected places. After the female deposits an egg case, the soft, white nymphs emerge. As their exoskeleton toughens, it turns brown in colour. The geometry and large size (some species possess a wingspread of higher than 12 cm [4.7 inches]) of cockroaches have turned them into a significant area in the biological laboratory.

The cockroach enjoys a warm, humid, dark habitat and is usually found in tropical or other mild areas. Just a couple of species have become pests. The insect inflicts damage upon more material than it consumes and has a unpleasant smell. The eating habits of the roach, which should be both plant and animal products, ranges from food, paper, clothing, and books to dead insects, including bedbugs. Insecticides can be used in roach removal.

The American cockroach (species Periplaneta americana) is 30 to 50 mm long (up to about 2 inches), reddish brown, and inhabits in an outdoor habitat or in dark, heated indoor spaces (e.g., basements and furnace rooms). In adult life, a period of about 1.5 years, the female generates 50 or more oothecae, each possessing about 16 eggs that hatch after 45 days. Nymphal life goes from 11 to 14 months. The American cockroach, a native of tropical and subtropical America, possesses well-developed wings. However, most species tend not to be gifted at flying.

The German cockroach (Blattella germanica), a common pest in houses and is sometimes incorrectly thought of as a waterbug, is light brown with two dark stripes on the prothoracic area. The female deposits the ootheca three days after mating and carries it for generally around 20 days. Because it is tiny in size (about 12 mm [less than 0.5 inch] long), this cockroach generally can be carried into houses in grocery bags and boxes; it has moved across the globe by ship. Three or more generations could live yearly. This cockroach, found in abundance through the water pipes of the Croton Aqueduct in New York City, has become labeled the Croton bug.

The brown-banded cockroach (Supella supellectilium) closely resembles the German cockroach but is a bit smaller. The male possesses totally developed wings and is lighter in hue than the female, whose wings are stunted and nonfunctional. Both sexes have two light-coloured bands across the back. The adult life span is roughly 200 days, and there can be two generations a year. Eggs are be deposited in clothes, wood molding, or cracks in the floor. With the invention of heated buildings this cockroach became established in cooler locations.

The Oriental cockroach (Blatta orientalis) is thought of as one of the dirtiest of household pests. It is oval, shiny black or dark brown, 25 to 30 mm (1 to 1.2 inches) long, with a life cycle similar to that of the American cockroach. The male possesses short, fully developed wings, while the female has vestigial wings. This cockroach has been taken by vehicles of business from its Asiatic origins to every temperate regions.

Wood roaches are not domestic pests. Parcoblatta pennsylvanica, the common wood cockroach, may be found under logs and stones in northern latitudes. The male and female are so different in appearance that they were originally thought to be different species. The male, 15 to 25 mm (0.6 to 1 inch) long, possesses wings that extend beyond the abdomen; the female is smaller and has much shorter wings. Cryptocercus punctulatus eats wood with the help of select protozoans in its digestive tract.

Got a cockroach or pest problem? If you’re looking for pest control Brisbane or a pest exterminator Brisbane, contact Brislander today.

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