Coelocephalapion eriogoni
Coelocephalapion eriogoni is a of in the Brentidae, Apioninae. The Coelocephalapion comprises small associated with specific plants, and this species is known from associations with Eriogonum (wild buckwheat) species. Like other apionine weevils, it likely exhibits a narrow host range tied to its larval development within tissues.
Pronunciation
How to pronounce Coelocephalapion eriogoni: //ˌsiːloʊˌsɛfəˈleɪpiən ˌɛraɪˈoʊɡoʊnaɪ//
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Identification
Distinguished from other small by the straight (non-) and elongated, non-elbowed typical of Brentidae. Within Apioninae, Coelocephalapion are separated from related by rostral and antennal proportions, though specific diagnostic characters for C. eriogoni require examination of . Distinguished from (true weevils) by the straight rather than .
Appearance
Small , likely 2–4 mm in length based on characteristics. Possesses the elongated, straight (snout) characteristic of Brentidae, with inserted near the middle of the rostrum. Body form is compact and somewhat cylindrical. Coloration and specific sculpturing details are not well documented in accessible literature.
Habitat
Associated with Eriogonum plants in arid and semi-arid western North , including sagebrush steppe, pinyon-juniper woodlands, and dry montane slopes.
Distribution
Western North America; recorded from California and adjacent states where Eriogonum occur.
Host Associations
- Eriogonum - larval of wild buckwheat (Polygonaceae); specific not confirmed in accessible sources
Ecological Role
As a seed or , likely contributes to of Eriogonum plants. May serve as for and .
Similar Taxa
- Apioninae (other genera)Other small apionine share similar size and general form; require examination of rostral proportions, antennal insertion, and male for definitive separation
- Curculionidae (true weevils)Superficially similar small , but distinguished by (elbowed) and usually shorter, stouter
More Details
Taxonomic Note
The Coelocephalapion was established to accommodate previously placed in Apion lato, reflecting revised understanding of apionine . Species-level in this group remains challenging and may require molecular and morphological revision.