Achrastenus
Horn, 1876
Species Guides
1Achrastenus is a of broad-nosed weevils established by Horn in 1876. The genus contains at least one described , Achrastenus griseus. It belongs to the tribe Eustylini within the Entiminae of the weevil Curculionidae. The genus is known from Texas.
Pronunciation
How to pronounce Achrastenus: //ˌækrəˈstiːnəs//
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Identification
As a broad-nosed weevil , Achrastenus possess the characteristic short, broad rostrum typical of Entiminae. Distinguishing features from other Eustylini genera would require examination of genitalia, tarsal structure, and other fine morphological characters; specific diagnostic traits for the genus are not documented in available sources.
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Distribution
Texas, United States. Distribution records from GBIF are limited to this state.
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Taxonomic placement
Achrastenus is classified in the tribe Eustylini, a diverse group of New World broad-nosed weevils. The tribe is characterized by particular features of the hind wing venation and male genitalia, though specific tribal characters for Achrastenus are not separately documented.