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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.
The Madagascar hissing cockroach even begins its life in an unusual manner. Females create a cocoon-like egg case called an ootheca and carry their eggs (and neonatal nymphs) inside their bodies.
Species: Gromphadorhina portentosa. Biology. Madagascar hissing cockroaches are large cockroaches (2-3 inches long and 1 inch wide), which are native to the island of Madagascar, off the coast of Africa. Males look different from females (sexual dimorphism). Males have prominent protrusions on the thorax, which are called pronotal humps.
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A. Moore. 1995. Social Communication in the Madagascar Hissing Cockroach: Features of Male Courtship Hisses and a Comparison of Courtship and Agonistic Hisses. Behavior, 132: 5-6. Clark, D., A. Moore. 1994. Social Interactions and Aggression Among Male Madagascar Hissing Cockroaches (Gromphadorhina portentosa) in Groups (Dictyoptera: Blaberidae).
The Madagascar hissing cockroach (MHC) is approximately 2 to 4 inches long and weighs 1/4 to 7/8 ounces. The roach is heavily sclerotized, giving it a brownish or black color over the entire body. Immediately after the molting process, the MHC will exhibit a white coloration until the exoskeleton hardens.
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.
4 days ago · Madagascar Hissing Cockroach Species, Types, and Scientific Name. The Madagascar hissing cockroach (Gromphadorhina portentosa) may come from the island of Madagascar, but today they can be found all over the world in private homes and zoos. They’re immensely popular as pets due to both their gentle natures and entertaining hissing sounds.
