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Genus Trigonorhinus

Trigonorhinus limbatus (Say) - Trigonorhinus limbatus Anthribidae, frontal - Trigonorhinus limbatus Trigonorhinus sticticus Small Spotted Beetle - Trigonorhinus sticticus Fungus Weevil - Trigonorhinus limbatus Trigonorhinus limbatus (Say) - Trigonorhinus limbatus Trigonorhinus limbatus - Trigonorhinus - male - female CURCULIONIDAE Sitona cylindricollis? Sweet clover weevil - Trigonorhinus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Curculionoidea (Snout and Bark Beetles)
Family Anthribidae (Fungus Weevils)
Subfamily Anthribinae
Genus Trigonorhinus
Explanation of Names
Trigonorhinus Wollaston 1861
11 spp. in our area(1), ~15 total(2)
key to spp. in(2)
Holarctic, more diverse in the New World (Canada to Argentina, maximum diversity in the US)(2)
Barry Valentine, pers. comm.: Pollen feeding is reasonable for most Trigonorhinus. Other species use sagebrush and ragweed pollen, corn and grass smut, and fern spores. It is a very successful genus occurring in Europe, Asia, and the majority of species from Canada to Argentina, but not the West Indies.
the only member of the tribe Trigonorhinini Valentine 1999; used to be treated in Anthribini
Works Cited
1.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
2.A review of Nearctic and some related Anthribidae (Coleoptera)
Valentine B.D. 1998. Insecta Mundi 12: 251-296.