About Libanasidus vittatus (Kirby, 1899)
Commonly known as the Parktown prawn, this species has the scientific name Libanasidus vittatus (Kirby, 1899). It is among the larger invertebrates found around residential areas in Johannesburg. A fully grown large specimen reaches 6 to 7 cm (2.8 inches) or more in body length, and its long whip-like antennae extend to roughly the same length as the body. Its exoskeleton ranges in color from orange to light brown, and is marked with darker brown or black stripes across the abdomen. These distinct, noticeable markings are thought to likely serve an aposematic function. Large individuals are capable of jumping more than one metre high. Males of the species have a strong set of tusk-shaped projections on their mandibles. The exact purpose of these projections is not yet fully understood, but it has been suggested they are used for sexual competition between males. Females have a well-developed sword-shaped ovipositor. During the mating season, females use this structure to lay between 80 and 200 eggs in damp or wet topsoil.
