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Novotettix
Genus of insects From Wikipedia, the free encyclopedia
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Novotettix is a monotypic genus of cave cricket/wētā in the family Rhaphidophoridae[1] endemic to south-east Australia.[1]
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Taxonomy
The genus Novotettix was first described by Aola M. Richards in 1966.[2] The genus is closely related to the Tasmanian genus Micropathus.[3]
Morphology
Novotettix naracootensis is adapted to living in caves. It is wingless[4] and can reach up to 18 mm (0.71 in) in length.[1] It lacks auditory tympanal organs [4] and does not make noise with its hind legs.[5] It is brown in colour, making it inconspicuous in dark caves.[4][6] Additionally, it has long antennae that extend up to five times the length of the body.[2][7]
This genus exhibits sexual dimorphism, with females being larger than males.[1] However, males have longer antennae than females.[1]
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Diet
Novotettix naracootensis is an opportunistic feeder, foraging on a variety of vegetation, fungi and invertebrates, as well as on vertebrate carcasses.[2] It has also been observed exhibiting cannibalism, with adults consuming both juveniles and deceased individuals.[2]
Distribution
This genus is restricted to low-elevation limestone caves in the south-east of Southern Australia in the region of Naracoorte.[1][3] Populations can co-occur with bats[1] but numbers are lower where forest has been removed around cave entrances and/or where there is high human activity.[2]
Behaviour
Novotettix is a nocturnal subtroglophile.[6][7][8] It exhibits a bimodal locomotor rhythm,[9] being most active around one hour after sunset.[2][9] During the evening these cave crickets move down from the roof and walls of the caves to feed on the floor and at the cave entrance.[2] Eggs are laid in the roof of the cave.[2]
References
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