A new genus of ambrosia beetle from Melanesia (Coleoptera: Curculionidae Scolytinae: Xyleborini) Author Beaver, R. A. 0000-0003-1932-3208 161 / 2 Mu 5, Soi Wat Pranon, T. Donkaew, A. Maerim, Chiangmai 50180, Thailand. rogerbeaver 6 @ gmail. com; https: // orcid. org / 0000 - 0003 - 1932 - 3208 rogerbeaver6@gmail.com Author Petrov, A. V. 0000-0001-9448-7179 Institute of Forest Science RAS, Sovetskaya st. 21, Uspenskoe, Moscow Region 143030, Russia. hylesinus @ list. ru; https: // orcid. org / 0000 - 0001 - 9448 - 7179 hylesinus@list.ru Author Sittichaya, W. Agricultural Innovation and Management Division, Faculty of Natural Resources, Prince of Songkla University, Hat Yai, Songkhla, text Zootaxa 2021 2021-03-24 4949 1 163 172 journal article 7495 10.11646/zootaxa.4949.1.9 fc6b80f2-eed9-4f48-bdab-6f56ef007bf0 1175-5326 4636084 4A8E4749-DCAB-4A6B-A5D0-0812DE0EDF6E Melanesicus partitus (Browne) comb. n. ( Figs 11‒12 ) Xyleborus partitus Browne 1974: 69 . Taxonomy . The senior author has examined the holotype and a paratype (NHML), and specimens in RAB. Schedl (1980) considered that Xyleborus granulosus was a synonym of this species, but the two species were distinguished by Beaver (1991) . Distribution. The species is endemic to Fiji , where it occurs in both high and low altitude rain forest ( Roberts 1977 ). Biology. Roberts (1977) described in detail the gallery system, brood size and development, and noted associated species of ambrosia beetles. He recorded the species from nine different families of host trees ( Roberts 1977 ). It is evidently polyphagous. In contrast to M. deformatus (see above), emergence is probably confined to the day, and the species was never taken at light ( Roberts 1977 ).