Epicauta wheeleri
Horn, 1873
Orange-necked Blister Beetle, ethereal beef weevil
Epicauta wheeleri is a blister beetle in the Meloidae, found in southwestern North America. It exhibits striking iridescence in desert sunlight and has pronounced body segmentation that resembles weevils, leading to the colloquial name "ethereal beef weevil" in southern Utah and Nevada. Despite this resemblance, it is not a true weevil. The is often observed in and around cattle pastures.
Pronunciation
How to pronounce Epicauta wheeleri: /ˌɛpɪˈkaʊtə ˈʍiːlərɪ/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Distinguished from true weevils ( Curculionidae) by its placement in family Meloidae. The combination of iridescent coloration, pronounced body segmentation, and orange neck region (consistent with the "Orange-necked Blister Beetle") may aid field recognition. Specific diagnostic features separating it from other Epicauta are not documented in available sources.
Images
Habitat
Arid and semi-arid environments of the southwestern United States, including desert regions of southern Utah, Nevada, and adjacent areas. Often found in cattle pastures and associated agricultural landscapes.
Distribution
Southwestern North America, specifically southern Utah, Nevada, and other parts of the American Southwest.
Human Relevance
The colloquial name "ethereal beef weevil" reflects its frequent observation by ranchers and farmers in cattle pastures. As with other blister beetles, it likely contains and should be handled with caution.
Similar Taxa
- True weevils (family Curculionidae)Superficially similar due to pronounced body segmentation, but distinguished by -level characters including mouthpart structure and insertion.
- Other Epicauta speciesNumerous congeneric occur in western North America; specific distinguishing characters for E. wheeleri require examination.
Misconceptions
The "ethereal beef weevil" perpetuates the misconception that this is a true weevil ( Curculionidae). It is actually a blister beetle (family Meloidae), and the name reflects convergent body form rather than phylogenetic relationship.