What is a Cockroach?
The word cockroach is rooted in the Spanish cucaracha. The cockroach is recognizable by a flat oval body, long hairlike antennae, and a shiny black or brown leathery integument. The head is held downward, and the mouthparts aim backward instead of forward or downward as is the case in almost all other insects. The male usually has two pairs of wings, whereas the female, who in some species, is wingless or has vestigial wings. The female creates eggs in egg cases (known as oothecae). These are sometimes held coming out from her body or could be glued in protected places. After the female produces an egg case, the soft, white nymphs emerge. As their exoskeleton hardens, it turns brown in shade. The form and remarkable size (some species possess a wingspread measurement of longer than 12 cm [4.7 inches]) of cockroaches have made them a singular interest in the biological laboratory.
The cockroach enjoys a warm, humid, dark living and is usually located in tropical and other mild temperatures. Only a few species have become pests. The insect harms more material than it eats and has a yucky scent. The food preference of the roach, which can be both plant and animal produce, goes from food, paper, clothing, and books to dead insects, especially bedbugs. Insecticides are used in roach termination.
The American cockroach (species Periplaneta americana) is 30 to 50 mm long (up to about 2 inches), reddish brown, and inhabits outside or in dark, heated indoor locations (e.g., basements and furnace rooms). During adult life, lasting about 1.5 years, the female creates 50 or more oothecae, each containing around 16 eggs that hatch after 45 days. Nymphal life lasts from 11 to 14 months. The American cockroach, originally from tropical and subtropical America, possesses well-developed wings. However, many species are seldom great at flying.
The German cockroach (Blattella germanica), a common pest in the household and on occasion erroneously referred to as a waterbug, is light brown with two dark stripes on the prothoracic area. The female produces the ootheca three days from mating and carries it for around 20 days. Because it is tiny (about 12 mm [less than 0.5 inch] long), this cockroach often can be carried into houses in grocery bags and boxes; it has moved through the world by boat. Three or more generations may occur yearly. This cockroach, abundant around the water pipes of the Croton Aqueduct in New York City, became known as the Croton bug.
The brown-banded cockroach (Supella supellectilium) resembles the German cockroach but is even smaller. The male has totally developed wings and is paler in colour than the female, whose wings are short and nonfunctional. Both sexes have two light-coloured bands across the back. The adult life span is around 200 days, and there may be two generations in a year. Eggs can be left in clothes, wood molding, or cracks in the floor. With the invention of heated buildings this cockroach became established in cooler temperatures.
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 like that of the American cockroach. The male possesses short, fully developed wings, and the female possesses vestigial wings. This cockroach has been carried in vehicles of trade from its Asiatic origins to almost all the temperate regions.
Wood roaches are feral pests. Parcoblatta pennsylvanica, the common wood cockroach, lives beneath logs and stones in northern latitudes. The male and female are so differing in appearance that they were initially considered unique species. The male, 15 to 25 mm (0.6 to 1 inch) long, possesses wings that expand past the abdomen; the female is smaller and has much shorter wings. Cryptocercus punctulatus consumes 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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