Epargyreus huachuca
Dixon, 1955
Epargyreus huachuca is a of the silver-spotted skipper (Epargyreus clarus), described by Dixon in 1955 from the Huachuca Mountains of Arizona. It is treated as a synonym of Epargyreus clarus by most modern authorities, including Catalogue of Life and GBIF. The silver-spotted skipper complex is widespread across North America, with in the southwestern United States and Mexico showing morphological variation that has led to subspecific designation.
Pronunciation
How to pronounce Epargyreus huachuca: //ɛˌpɑːrˈdʒɪr.iəs ˌwɑːˈtʃuːkə//
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Identification
Distinguished from nominate Epargyreus clarus by subtle differences in wing pattern and size, though these characters are variable and overlap with other . The -level identification follows the standard characters of Epargyreus clarus: triangular silver-white spot on the underside of the hindwing, brown to blackish upper wing surfaces with orange-brown bands, and a robust body with large typical of skippers. Separation from other Epargyreus species requires examination of genitalia or molecular data.
Images
Habitat
Associated with oak-juniper woodland and riparian corridors in the Huachuca Mountains of southeastern Arizona, at moderate to high elevations. The region features Madrean evergreen woodland and pine-oak forest transitions.
Distribution
Known from the Huachuca Mountains of southeastern Arizona, USA, with possible extension into adjacent Sky Island ranges of Arizona and northern Mexico. GBIF records indicate presence in Middle America and North America.
Similar Taxa
- Epargyreus clarusEpargyreus huachuca is treated as a synonym or of the widespread silver-spotted skipper; differences are subtle and primarily geographic
- Epargyreus exadeusAnother Epargyreus with overlapping range in Mexico; requires careful examination of wing venation and genitalia for separation