Xixuthrus


Xixuthrus is a small genus of long-horned beetles, found primarily on Pacific islands, including Indonesia, New Guinea, the Solomon Islands, and Fiji, and contains some of the largest living insect species, the giant Fijian long-horned beetle and the Taveuni beetle. These beetles have powerful jaws, and should be handled with care when alive. No scientists have yet seen a larva of this genus, although in Fiji, where three different species occur, the natives consider them to be a rare and special delicacy.

Systematics

The genus Xixuthrus is currently dividend in two subgenera: Xixuthrus s. str. and Daemonarthra Lameere, 1903.

The latter differs from the former in the apically acute lobes of the third tarsal segment.
Subgenus Xixuthrus Thomson, 1864 Xixuthrus arfakianus Xixuthrus axis Thomson, 1877Xixuthrus bufo Thomson, 1878Xixuthrus costatus Xixuthrus domingoensis Fisher 1932Xixuthrus fominykhi Titarenko & Zubov 2018Xixuthrus ganglbaueri Lameere, 1912Xixuthrus granulipennis Komiya, 2000Xixuthrus gressitti Marazzi, Marazzi & Komiya, 2006Xixuthrus heros Xixuthrus jakli Titarenko & Zubov 2018Xixuthrus lameerei Marazzi, Marazzi & Komiya, 2006Xixuthrus lansbergei Xixuthrus lunicollis Lansberge 1884Xixuthrus microcerus Xixuthrus nycticorax Thomson, 1878Xixuthrus penrousi Titarenko & Zubov, 2018Xixuthrus pinkeri Titarenko & Zubov, 2018Xixuthrus sapolsky Titarenko & Zubov, 2018Xixuthrus solomonensis Marazzi & Marazzi, 2006Xixuthrus stumpei Titarenko & Zubov, 2018Xixuthrus terribilis Thomson, 1877 Xixuthrus thomsoni Marazzi, Marazzi & Komiya, 2006
Subgenus Daemonarthra Lameere, 1903
  • ''Xixuthrus helleri''