Allonemobius fasciatus

These two subspecies belong to the species Allonemobius fasciatus: • Allonemobius fasciatus abortivus (Caudell, 1904) • Allonemobius fasciatus fasciatus (De Geer, 1773) == Distribution ==

A. fasciatus is widely distributed in North America, covering eastern and western portions. A. fasciatus typically prefers short grassland habitats. Depending where A. fasciatus resides, traits such a body size can differ. A. fasciatus is considered to inhabit northern regions of North America, whereas A. socius inhabits southern regions. This can be referred to as a mosaic hybrid zone. While it is known that for the most part A. fasciatus remains separated from A. socius when breeding, the potential for interbreeding can occur. == Behaviour ==

Communication Mating calls appear to be related to genotype. Male mating calls amongst A. fasciatus function in interspecific and intraspecific species recognition. Adult male mating calls are influenced in the nymph stage by temperature and length of daylight. Usually, males will avoid moving areas when calling female conspecifics. With the ability for breeding hybridization with A. socius, members of the A. fasciatus species present song calls that are undifferentiated to A. socius by female A. fasciatus. Females have the ability to leave a pheromonal residue on surfaces. Mate selection Females are highly sex-driven and will choose a male to mate with based on the mating call she prefers. When female A. fasciatus hybridizes with A. socius males, she loses very little except the energy expended when looking for the male, and risk associated with potential predation. == Physiology ==

A. fasciatus wing size is determined by the number of hours of daylight present during development. Most individuals are short-winged and longer daylight periods can account for larger wing size. == Life cycle ==

A. fasciatus is a univoltine species. It can take a nymph up to two months to hatch. This species is photosensitive and development will increase in speed as daylight decreases. This phenomenon is indicative of seasonal synchrony. == Reproduction ==

Hybridization Ground-dwelling crickets only possess XX and XO chromosomes, which allows male individuals to get the X chromosome from the maternal side. Ovipositor length in A. fasciatus varies depending on the geographical location it is found. ==References==