Deconstructing the Australian Tetrix (Orthoptera: Tetrigidae): three new genera and a new species, Cyphotettix ellurae
Kovacevic Maja, Kasalo Niko
Acta Entomologica Musei Nationalis Pragae 65(2): 349-364, 2025
Published online: 10th December 2025
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Abstract: Until now, the Australian fauna of Tetriginae has been represented predominantly
by the genera Paratettix Bolívar, 1887 and Tetrix Latreille, 1802, with the
latter mostly consisting of apterous species. The Australian members of these
genera show remarkable morphological diversity, which prompted us to reexamine
the relationships between them using cladistic analysis based on morphological
characters of head and thorax. We have found that the Australian Tetrix spp. are
easily separable into three distinct genera: Captivus gen. nov., Custodia gen.
nov., and Enattor gen. nov. Additionally, we describe a new species of the
Tetriginae genus Cyphotettix Rehn, 1952, C. ellurae sp. nov. We provide an
identification key to the Australian Tetriginae genera and hypothesize that the
apterous species are related to Tetrix collina Rehn, 1952.
Key words: Orthoptera, Tetrigidae, Custodia, Captivus, Enattor, new genus, new species pygmy grasshopper, taxonomic revision, wingless, Australia
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