A revision of the genus Pachyrhinus Schoenherr 1823 (Coleoptera: Curculionidae) in the Nearctic region
Date
2016
Authors
Benzel, Joseph, author
Kondratieff, Boris, advisor
Bright, Donald, committee member
Gilligan, Todd, committee member
Wei, Yu, committee member
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Abstract
This paper presents a revision of the North American species of the broad nosed weevil genus Pachyrhinus (Coleoptera: Curculionidae) Schönherr, 1823, which includes eight currently recognized species. Pachyrhinus is considered a minor pest of Pinus spp. Three species of Pachyrhinus are now recognized in North America: P. elegans (Couper, 1865), P. californicus (Horn, 1876), and P. cinereus (Casey, 1888). Pachyrhinus lateralis (Casey, 1888) and P. miscix (Fall, 1901) are considered synonyms of P. elegans. Pachyrhinus crassicornis (Casey, 1888) and P. albidus (Fall, 1901) are synonyms of P. cinereus. The previous synonymy of P. ferrugineus (Casey, 1888) with P. californicus was confirmed. The revision includes detailed images of diagnostic characters as well as scanning electron micrographs of scale morphology for all species.
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Subject
polydrusini
Entiminae