Cryptolepidus
Van Dyke, 1936
Species Guides
2Cryptolepidus is a of broad-nosed weevils in the Curculionidae, established by Van Dyke in 1936. The genus comprises approximately eight described , distributed primarily in western North America. Species are found in arid and semi-arid regions, with several named after their type localities in Nevada, Utah, and Colorado. The genus is classified within the tribe Geonemini of the Entiminae.
Pronunciation
How to pronounce Cryptolepidus: /krɪptoʊˈlɛpɪdəs/
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Identification
As broad-nosed weevils (Entiminae), members of Cryptolepidus possess the characteristic short, broad rostrum typical of the , distinguishing them from long-snouted weevils in other Curculionidae subfamilies. -level identification requires examination of genitalic structures and subtle differences in pronotal and elytral . Cryptolepidus leechi has been noted as distinct enough to warrant separate mention in some sources.
Habitat
occur in arid and semi-arid environments of western North America. Cryptolepidus aridus is associated with desert , while C. boulderensis was described from Boulder, Colorado, and C. nevadicus from Nevada. The specific microhabitats and plants remain poorly documented for most species.
Distribution
Western North America, with records from Colorado, Nevada, Utah, and adjacent arid regions. The appears to be restricted to the United States, with no confirmed records from Canada or Mexico.
Similar Taxa
- Other Geonemini generaBroad-nosed weevils in the same tribe share the short rostrum and general body form, requiring careful examination of tarsal structure, genitalia, and surface for definitive identification.
- PachnaeusAnother of broad-nosed weevils with superficially similar appearance, but differing in distribution and specific morphological details of the rostrum and .
More Details
Etymology
The name combines Greek 'crypto-' (hidden, concealed) with 'lepidus' (elegant, fine, or scaly), possibly referring to subtle or inconspicuous morphological features.
Taxonomic History
Several were originally described in other and later transferred to Cryptolepidus: C. boulderensis and C. nevadicus were previously in Pachnaeus, while C. cazieri was described in Pandeleteius.