oa African Entomology - New Bothromelopus species from Possession Island, Crozet Archipelago, with nomenclatural amendments and a key to its weevil fauna (Coleoptera: Curculionidae: Brachycerinae)



Three new species of Curculionidae are descriptionbed from Possession Island and a key to the weevil fauna of the island is provided. The following nomenclatural changes are made, based on an examination of all 36 species in the Ectemnorhinus-group of genera: Neocanonopsis Hoffmann is synonymized with Christensenia Brinck, Antarctonesiotes Jeannel and Mesembriorrhinus Jeannel with Bothrometopus Jeannel, and Dusmoecetes Jeannel and Xanium Enderlein with Ectemnorhinus G.R. Waterhouse. Christensenia dreuxi (Hoffmann) comb. n. is transferred from Neocanonopsis, Bothrometopus crozetensis (Enderlein) comb. n. is transferred from Mesembriorrhinus and reinstated as a valid species, Bothrometopus desolationis Qeannel) comb. n. is transferred from Antarctonesiotes, Ectemnorhinus vanhoeffenianus (Enderlein) comb. n. is transferred from Xanium, and Ectemnorhinus possessionensis (Hoffmann) comb. n. is transferred from Xanium and removed from synonymy with Ectemnorhinus vanhoeffenianus. The rich diversity of species on Possession Island is briefly compared with that of the other South Indian Ocean Province islands.


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