The occurrence of the tribe Chlamisini in Australia is reviewed. The 3 species are placed in Chlumisus Rafinesque. Two native species (C. aterrimus (Lea), c0mb.n. ( = C. australis Bryant syn.n.) and C. amyemae sp.n.) are described and compared with the recently introduced species C. mimosue Karren.
The galerucine genus Taumacera Thunberg is reviewed. Platyxantha Baly is placed in synonymy with Taumacera. The Taumacera deusta species-group is defined and two new species are described in this group: Taumacera mohamedsaidi from Borneo and Taumacera evi from Peninsular Malaysia and Sumatra. A new name, Taumacera seminigra, is provided for Taumacera nigripennis (Jacoby 1900a), nec Jacoby 1884, and Taumacera martapurensis Mohamedsaid is synonymised with Taumacera sucki Weise.A key is given for the deusta species-group and a revised checklist presented for all Taumacera species.
Semelvillea gen.n. is described from eastern Australia, with nine species, all of which are new: acaciae, bunyae, eungellae, hirsuta, nothofagi, parva, punctata, tasmaniae and waraganji. The genus is related to Arnomus Sharp in Cryptocephalinae and a partial phylogeny of the species of Semelvillea is proposed using Arnomus as an outgroup. The host-plants include Acacia, Eucalyptus and Nothofagus, and the implications of the species phylogeny for host-plant relationships and biogeography are briefly considered.
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