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Madagascar hissing cockroach: Difference between revisions
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== Body Design == | == Body Design == | ||
[[File:Cockroach on rock.jpg|thumb|250px|left|A group of Madagascar hissing cockroaches displaying the orange coloration on the abdomen]] | [[File:Cockroach on rock.jpg|thumb|250px|left|A group of Madagascar hissing cockroaches displaying the orange coloration on the abdomen]] | ||
The Madagascar hissing cockroach is an insect and has a head, thorax and abdomen and six legs. However, these cockroaches do not have wings.<ref Animal-Diversity-web>Jessee, Ashley. [http://animaldiversity.ummz.umich.edu/accounts/Gromphadorhina_portentosa/ Gromphadorhina portentosa Madagascan hissing cockroach] ''Animal Diversity Web''. Web. Date of access: 16 December 2013.</ref> It is part of the giant cockroach family (Blaberidae). Its body is a smooth oval shape and has a shiny/waxy appearance. The adults can grow up to two-three inches long and about one inch wide. <ref name=National-Geographic>. [http://animals.nationalgeographic.com/animals/bugs/madagascar-hissing-cockroach/ Madagascar Hissing Cockroach] ''National Geographic''. Web. Date of access: 16 December 2013 Author Unknown.</ref> Their coloration ranges from dark mahogany to dark brown and black. The head area is slightly darker than the abdomen. The abdomen can also be an almost orange color. | The Madagascar hissing cockroach is an insect and has a head, thorax and abdomen and six legs. However, these cockroaches do not have wings.<ref name=Animal-Diversity-web>Jessee, Ashley. [http://animaldiversity.ummz.umich.edu/accounts/Gromphadorhina_portentosa/ Gromphadorhina portentosa Madagascan hissing cockroach] ''Animal Diversity Web''. Web. Date of access: 16 December 2013.</ref> It is part of the giant cockroach family (Blaberidae). Its body is a smooth oval shape and has a shiny/waxy appearance. The adults can grow up to two-three inches long and about one inch wide. <ref name=National-Geographic>. [http://animals.nationalgeographic.com/animals/bugs/madagascar-hissing-cockroach/ Madagascar Hissing Cockroach] ''National Geographic''. Web. Date of access: 16 December 2013 Author Unknown.</ref> Their coloration ranges from dark mahogany to dark brown and black. The head area is slightly darker than the abdomen. The abdomen can also be an almost orange color. | ||
The hissing cockroach's feet have little hooks and pads that aid in climbing on smooth surfaces. They can even walk on glass without much trouble. <ref name= Animal-Diversity-web/> | The hissing cockroach's feet have little hooks and pads that aid in climbing on smooth surfaces. They can even walk on glass without much trouble. <ref name= Animal-Diversity-web/> | ||
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== Life Cycle == | == Life Cycle == | ||
[[File:Cockroach nymphs.jpg|thumb|250px|left|cockroach nymphs emerging from the female]] | [[File:Cockroach nymphs.jpg|thumb|250px|left|cockroach nymphs emerging from the female]] | ||
The life cycle of the Madagascar hissing cockroach is a little different then the life cycles of other cockroaches. They are ovoviparous, meaning they give birth to live young. This unique insect displays incomplete metamorphosis (egg, nymph, adult.)<ref name UK-entomology/> The adult male uses its hissing sound as a courtship call for the female. The male with also defend his mating grounds with hissing and pushing and shoving the other males. The hissing cockroach can breed all year round but they usually only do it when the weather is warm. The female produces a special scent that the male cockroach is attracted to. They detect the scent with their antennae. This scent decreases with age. | The life cycle of the Madagascar hissing cockroach is a little different then the life cycles of other cockroaches. They are ovoviparous, meaning they give birth to live young. This unique insect displays incomplete metamorphosis (egg, nymph, adult.)<ref name=UK-entomology/> The adult male uses its hissing sound as a courtship call for the female. The male with also defend his mating grounds with hissing and pushing and shoving the other males. The hissing cockroach can breed all year round but they usually only do it when the weather is warm. The female produces a special scent that the male cockroach is attracted to. They detect the scent with their antennae. This scent decreases with age. | ||
When the two cockroaches find each other, they begin by touching each other's antennae. Next they put their rears together for about thirty minutes (internal fertilization).<ref name=Animal-Diversity- | When the two cockroaches find each other, they begin by touching each other's antennae. Next they put their rears together for about thirty minutes (internal fertilization).<ref name=Animal-Diversity-web/> The female cockroach has an internal egg sac called the ootheca. The female carries the eggs inside for about two months. When the eggs hatch, they are released. About fifteen to forty cockroach nymphs (that look like mini adults but lack reproductive organs) will come out.<ref>Sreng, L. [http://eol.org/pages/1074947/details Madagascar Giant Hissing Cockroach] ''Encyclopedia of Life''. Web. Date of access: 9 January 2014 (specify which).</ref> The nymphs will molt its exoskeleton about six times before it becomes an adult. At seven months old, the cockroach is sexually mature as well. The Madagascar hissing cockroach lives two to five years in the wild and in captivity.<ref name=Animal-Diversity-web/> | ||
