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.Xixuthrus The latter differs from the former in the apically acute (rather than rounded) lobes of the third tarsal segment.
Subgenus Xixuthrus Thomson, 1864 Xixuthrus arfakianus (Lansberge, 1884) Xixuthrus axis Thomson, 1877 Xixuthrus bufo Thomson, 1878 Xixuthrus costatus (Montrouzier, 1855) Xixuthrus domingoensis Fisher 1932 Xixuthrus fominykhi Titarenko & Zubov 2018 Xixuthrus ganglbaueri Lameere, 1912 Xixuthrus granulipennis Komiya, 2000 Xixuthrus gressitti Marazzi, Marazzi & Komiya, 2006 Xixuthrus heros (Gräffe, 1868) Xixuthrus jakli Titarenko & Zubov 2018 Xixuthrus lameerei Marazzi, Marazzi & Komiya, 2006 Xixuthrus lansbergei (Lameere, 1912) Xixuthrus lunicollis Lansberge 1884 Xixuthrus microcerus (White, 1853) Xixuthrus nycticorax Thomson, 1878 Xixuthrus penrousi Titarenko & Zubov, 2018 Xixuthrus pinkeri Titarenko & Zubov, 2018 Xixuthrus sapolsky Titarenko & Zubov, 2018 Xixuthrus solomonensis Marazzi & Marazzi, 2006 Xixuthrus stumpei Titarenko & Zubov, 2018 Xixuthrus terribilis Thomson, 1877 Xixuthrus thomsoni Marazzi, Marazzi & Komiya, 2006
Subgenus Daemonarthra Lameere, 1903 Xixuthrus helleri (Lameere, 1903)
References
External links
Gallery of Xixuthrus-species ZinRus In Russian but excellent images of several members of this genus. Locality information in English.