Achalarus casica
(Herrich-Schäffer, 1869)
Achalarus casica is a in the Hesperiidae, Pyrginae. It is distributed across parts of North and Middle America. Like other members of its , it is associated with leguminous plants. The was described by Herrich-Schäffer in 1869.
Pronunciation
How to pronounce Achalarus casica: /əˈkæl ər əs ˈkæs ɪ kə/
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Identification
Members of the Achalarus are characterized by their robust, -like build, large , and relatively short with hooked clubs. Specific identification of A. casica requires examination of genitalic characters and comparison with , particularly A. lyciades and A. albociliatus. The lacks comprehensive modern taxonomic revision.
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Habitat
Associated with dry, open including scrublands and areas where plants in the legume (Fabaceae) occur. Specific microhabitat preferences are poorly documented.
Distribution
Recorded from North America and Middle America. Present in the southwestern United States, Mexico, and Central America. Precise range boundaries require further documentation.
Diet
Larvae feed on leguminous plants (Fabaceae), though specific host records for A. casica are not well documented. are presumed to feed on nectar, as is typical for hesperiid butterflies.
Host Associations
- Fabaceae - larval -level association inferred from ; specific plants for A. casica not confirmed
Similar Taxa
- Achalarus lyciadesOverlapping distribution and similar overall ; distinguished by subtle differences in wing pattern and genitalia
- Achalarus albociliatusSympatric in parts of range; requires careful examination of hindwing fringe coloration and genitalic structure for separation
More Details
Taxonomic History
Described by Herrich-Schäffer in 1869. The Achalarus has undergone taxonomic revision, with some former reassigned to related genera. A. casica remains in Achalarus but has received limited modern study.