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An unusual number of their genes relate to taste and smell, which helps them to avoid toxic food. Genes relating to development and immunity help cockroaches grow quickly and resist disease. [6] The American cockroach is the most popular species for farming. [1] Start-up costs for cockroach farms are low, and there are few regulations.
Cockroaches are raised in large quantities in China for the production of traditional medicine and cosmetics. [107] There are about 100 cockroach farms in the country. Running a farm involves relatively low starting and operating costs due to how hardy and easy to process the insects are.
Immature cockroaches emerge from egg cases in 6–8 weeks and require 6–12 months to mature. After hatching, the nymphs feed and undergo a series of 13 moultings (or ecdysis). Adult cockroaches can live up to an additional year, during which females produce an average of 150 young. The American cockroach reproductive cycle can last up to 600 ...
The Florida woods cockroach (Eurycotis floridana) is a large cockroach species which typically grows to a length of 30–40 mm (1.2–1.6 in). [2] When alarmed, adults can eject an extremely foul-smelling directional spray up to one metre (3.3 ft), [3] which inspired several of its other common names: Florida skunk roach, Florida stinkroach, skunk cockroach, skunk roach, stinking cockroach ...
Blaberus giganteus is considered one of the largest cockroaches in the world, with males reaching lengths of up to 7.5 cm (3.0 in) and females 10 cm (3.9 in), [2] although others list 9 cm (3.5 in) as the maximum length. [3] These cockroaches are lightly built with flattened bodies, allowing them to hide in cracks from predators.
Blattidae is a cockroach family in the order Blattodea [2] containing several of the most common household cockroaches. Notable species include: Blatta orientalis: Oriental cockroach, Common shining cockroach: (Drymaplaneta communis) Florida woods cockroach: (Eurycotis floridana)
Aptera fusca, the Cape Mountain cockroach, giant cockroach or Table Mountain cockroach, is a large cockroach which is widespread on low vegetation in open areas [1] in the fynbos biome of the Western Cape region of South Africa. Adult females can be from 30 to 40 millimetres (1.2 to 1.6 in) long.
One of the larger cockroaches, Drymaplaneta semivitta is about 20–45mm long [2] [4] and 12–15mm wide. [5] It is a glossy dark brown, with distinctive tan or white coloured translucent stripes along each side of its head. [4] [5] [6] Unlike many cockroaches, it has no vestigial wings. [2] [5] [6]