01591nas a2200157   4500008004100000245012800041210006900169260001200238300001000250490000700260520104700267100001501314700001501329700001401344856007501358       2009                        eng d00aDeep cox1 divergence and hyperdiversity of Trigonopterus weevils in a New Guinea mountain range (Coleoptera, Curculionidae)0 aDeep cox1 divergence and hyperdiversity of Trigonopterus weevils  c01/2010  a63-740 v393 aTrigonopterus is a little-known genus of flightless tropical weevils. A survey in one locality, the Cyclops Mountains of West New Guinea, yielded 51 species, at least 48 of them undescribed. In this study, we show that mtDNA sequencing, or DNA  barcoding, is an effective and useful tool for rapid discovery and identification of these species, most of them morphologically very difficult to distinguish even for expert taxonomists. The genus is hyperdiverse in New Guinea and different species occur on foliage and in the litter layer. Morphological characters for its diagnosis are provided. Despite their external similarity, the genetic divergence between the species is high (smallest interspecific divergence 16%, mean 20%). We show that Trigonopterus are locally hyperdiverse and genetically very strongly structured. Their potential for rapid local biodiversity assessment surveys in Melanesia is outlined (a-diversity); providing a regional perspective on Trigonopterus diversity and biogeography is the next challenge (b-diversity).1 aRiedel, A.1 aDaawia, D.1 aBalke, M.  uhttp://www3.interscience.wiley.com/cgi-bin/fulltext/122540804/PDFSTART