Evergestis triangulalis
Barnes & McDunnough, 1914
Evergestis triangulalis is a small crambid described in 1914, known from the southwestern United States. display distinctive wing patterning with brown-scaled forewings and pale smoky hindwings. The exhibits an unusually extended adult activity period spanning most of the year.
Pronunciation
How to pronounce Evergestis triangulalis: //ˌɛvərˈɡɛstɪs traɪˌæŋɡjuˈleɪlɪs//
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Identification
Distinguished from by combination of triangular brown forewing patterning, hyaline hindwings with smoky marginal band, and small size. The dull red-brown terminal suffusion on forewings and deep smoky outer margin on hindwings are particularly distinctive. Geographic restriction to southwestern North America aids separation from similar eastern Evergestis .
Images
Appearance
Wingspan 26–30 mm. Forewings whitish with brown scaling in basal and areas, suffused with dull red-brown terminally. Hindwings pale smoky hyaline with deep smoky shading on outer margin.
Distribution
Southwestern North America: recorded from Arizona, Nevada, and New Mexico.
Seasonality
active February through October, indicating potential multivoltine or extended period.
Similar Taxa
- Evergestis rimosalisOverlaps in range; distinguished by forewing pattern lacking dull red-brown terminal suffusion and different hindwing shading
- Evergestis pallidataPalearctic with superficially similar pale coloration; distinguished by geographic separation and more uniform forewing scaling
More Details
Etymology
Specific epithet 'triangulalis' likely refers to the triangular pattern of brown scaling on the forewings.