New taxa of Lycidae from Samoa, Fiji and Tonga (Coleoptera: Lycidae)

摘要

A new tribe, Melanerotini tr.n., a new genus, Polyneros gen.n., and a new species, Melaner-os ramsdalei sp.n., are described from Samoa, Fiji and Tonga. A check-list of Lycidae of Samoa, Fiji and Tonga that also includes a representative of the tribeCalo-chromini is provided. The fauna of Lycidae of Samoa, Fiji and Tonga, three adjacent archipelagos that lie between Melanesia and Polynesia, Fiji usually included in the former and Samoa and Tonga in the latter, is very unlike all other Melane-sian and Polynesian islands, and New Zealand. The difference is that while there are no representatives of Lycidae east of the Solomon Islands, and the only lycid found in New Zealand is an apparently recently introduced from Australia Porrostoma Laporte, 1836species [Kleine, 1933], Samoa, Fiji and Tonga can boast of a relatively rich and peculiar fauna. Most of the lycid species found here are attributed to the endemic genus Melaneros Fairmaire, 1877; Plateros Bourgeois, 1879 being the second genus registered for the area, and Calo-chromus Guerin-Meneville, 1833 reported from Fiji only two years ago, being the third [Ramsdale, 2007].