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Genus Thyregis
Species found in eastern New South Wales: T. kershawi, T. monteithi, T. relictus. Other species: T. tarsatus (WA)
Distribution
Description Two small clypeal teeth; frontoclypeal area elevated into low transverse ridge or short horn in male. Pronotum strongly convex, lateral margins partly hidden from above. Anterior part of underside of pronotum not strongly excavated, with a complete oblique keel joining coxal cavities and lateral margins, and a longitudinal keel running halfway forward from posterior edge, parallel to lateral edge. Elytra: elytra with 10 complete striae, including one along epipleural edge; striae 1-9 with distinct punctures. No pseudepipleura. Hind wings: Fully developed or reduced. Legs: Outer edge of fore tibiae with 3 large teeth. Anterior metasternal intercoxal process longer than broad. Middle coxaelongitudinally aligned and parallel. Middle and hind tibiae strongly expanded distally, with a transverse keel on outer face. Two strong spurs of unequal length on middle tibiae and one on hind tibiae. Claws slender, curved, simple. Abdomen: Last sternite as long or longer medially than previous 4 sternites combined. Pygidium transverse, strongly margined throughout, without tubercles or depressions.
Sexual dimorphism
Similar Genera
Onthophagus, of a similar size and general shape (some species), black and shiny, middle coxae parallel.
Ecology
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