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Field Guide Descriptions: | Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLD | Technical Description, Adults: Duckworth (1964) | |
| Adult Markings: The following is based on the description by Busck (1908) and Duckworth (1964). The face and head are whitish ocherous. The labial palp is brownish ocherous, with the tip of the second joint and base of the terminal joint whitish. The antenna is light brown and ciliated only in the male (antenna simple in the female). The thorax is light brown. The forewing is rich deer brown with a strong silky luster, and the costal edge is narrowly light ocherous. At about two-thirds the wing length, the cell has a faint dark brown apical spot. The hindwing is whitish fuscous with ocherous cilia. The front leg is rich brown, while the middle leg is somewhat lighter, and the hind leg white. The abdomen is whitish ocherous. This species is superficially similar to A. unipunctella, but can be distinguished by the darker rich brown color and the light costal edge. |
| Wingspan: 22-24 mm (Duckworth, 1964) |
| Adult Structural Features: Duckworth (1964) provides descriptions and illustrations of the male and female genitalia. Antaeotricha decorosella is very similar to A. unipunctella but it differs in the presence of a dense, brushlike group of spines on the dorsal lobes of the anellus in the male genitalia, and in the location of the genital opening at the anterior edge of the genital plate in the female. |
| Adult ID Requirements: Identifiable from good quality photos of unworn specimens. |
| Immatures and Development: The larval life history and ecology are largely undocumented. The larvae are known to use at least two species of oaks, and are presumed to be leaftiers as are other oak-feeders in this genus. |
| Larvae ID Requirements: Identifiable only through rearing to adulthood. |