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A review of New World weevils associated with Viscaceae (mistletoes [in part]) including descriptions of new genera and new species (Coleoptera: Curculionidae)

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The New World weevil fauna of the parasitic plant family Viscaceae is comprised of 24 species in eight genera representing four tribes of Curculioninae. Genera represented (numbers of species and tribal placement in parentheses) are as follows; Anthonomus (3), Smicraulax (3) and Cionomimus (9) (Anthonomini), Myrmex (1) (Otidocephalini), Hohonus (2) (Cryptorhynchini), and Cylindrocopturinus (4), Turcopus (1) and Coturpus (1) (Zygopini). Smicraulax arizonicus Sleeper and S. tuberculatus Dietz are reported from Mexico; S. piercei is recorded from Chiapas, Mexico. Three new species of Anthonomus, A. brachyrhinus, A. guerreroensis and A. phoradendrae are described from Mexico. Five new species of Cionomimus, C. burkei (Mexico), C. clarki (Venezuela), C. grossus (Mexico), C. obrieni (Mexico) and C. woodi (Mexico) are described. A key to species of adults of Cionomimus species is presented. Otidocephalus algerti Sleeper is considered a new junior synonym of Myrmex arizonicus (Schaeffer). Sternocoelus sturio Arrow is transferred to Hohonus as H. sturio (Arrow) n. comb. The genus Cylindrocopturinus Sleeper, and C. pictus (Schaeffer) and C. hainesi Hespenheide are redescribed and 2 new species of Cylindrocopturinus, C. catherineae and C. vanessae , are described from Mexico. Cylindrocopturinus hainesi is reported from Honduras. A key to species of adults of Cylindrocopturinus is presented. Turcopus new genus is proposed with one included species, T. viscivorus new species, described from Guatemala and Guerrero, Mexico. Coturpus new genus is proposed with one included species, C. arcuatus new species, described from Guerrero, Mexico. Phylogenetic relationships of most curculionid lineages associated with Viscaceae are inadequately resolved. Only for Myrmex arizonicus and Cylindrocopturinus-Coturpus-Turcopus are there sufficient data to weigh competing hypotheses about evolution of host plant associations. In both instances close relatives of the weevil lineages are associated with plants (e.g. Quercus, Ulmus ) which serve as mistletoe hosts. No Curculioninae related to those on mistletoes are known from Santatales other than Viscaceae but this could be the result of inadequate sampling.
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Keywords: Curculionidae; Viscaceae; evolution; host-plant associations; mistletoe; weevils

Document Type: Research Article

Affiliations: Entomology, Canadian Museum of Nature, PO Box 3443, Station D, Ottawa, ON, K1P 6P4, Canada

Publication date: 01 March 1994

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