''Rhinorhipus'' is a
genus of beetles that contains a single species, ''Rhinorhipus tamborinensis'' from southern
Queensland, Australia. It is the sole member of the family Rhinorhipidae and superfamily Rhinorhipoidea. It is an isolated lineage not closely related to any other living beetle, estimated to have split from other beetles at least 200 million years ago, with studies either considering them the earliest diverging member of
Elateriformia, or a basal lineage within
Polyphaga
Polyphaga is the largest and most diverse suborder of beetles. It comprises 144 families in 16 superfamilies, and displays an enormous variety of specialization and adaptation, with over 350,000 described species, or approximately 90% of the b ...
. They exhibit feigning death (
thanatosis
Apparent death, colloquially known as playing dead, feigning death, or playing possum, is a behavior in which animals take on the appearance of being dead. It is an immobile state most often triggered by a predatory attack and can be found in a ...
) when disturbed. Their ecology is poorly known. It is likely that they are
fossorial
A fossorial () animal is one adapted to digging which lives primarily, but not solely, underground. Some examples are badgers, naked mole-rats, clams, meerkats, and mole salamanders, as well as many beetles, wasps, and bees.
Prehistoric eviden ...
based on their morphology.
[Lawrence, John F.. "4.1. Rhinorhipidae Lawrence, 1988". ''Volume 2 Morphology and Systematics (Elateroidea, Bostrichiformia, Cucujiformia partim)'', edited by Willy Kükenthal, Richard A.B. Leschen, Rolf G. Beutel and John F. Lawrence, Berlin, New York: De Gruyter, 2011, pp. 38-42. ]
References
{{Taxonbar, from=Q846576
Monotypic Elateriformia genera