Field Guide Descriptions: Covell (1984); Beadle and Leckie (2012) | Online Photographs: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLD | Technical Description, Adults: Forbes (1954) | Technical Description, Immature Stages: Crumb (1956); Wagner et al. (2011) | |
Adult Markings: This species is likely to be confused with Homorthodes furfurata, Pseudorthodes vecors or Orthodes cynica. Males and females usually have a well marked yellowish subterminal line, the others do not. Individuals lacking the subterminal line may require dissection until one becomes familiar with the species. Specimens are uniform brown or in the mountains reddish, some with a well marked pattern of lines. |
Adult Structural Features: Males of Trichopolia have pectinate antennae, whereas those of Homorthodes and Pseudorthodes do not. The long, thin uncus is diagnostic for the male. For the female, the lyre-shaped ductus bursae is diagnostic. |
Structural photos |
![](photos_structures/2016/tn10563.00_1452912054.jpg) Male reproductive structures |
![](photos_structures/2016/tn10563.00_1452912081.jpg) Aedeagus |
![](photos_structures/2016/tn10563.00_1452912110.jpg) Female reproductive structures |
![](photos_structures/2016/tn10563.00_1452912146.jpg) Abdominal pelt |
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Adult ID Requirements: Identifiable from good quality photos of unworn specimens. |
Immatures and Development: The caterpillar is undistinguished, perhaps the best character being an orangish/tan subdorsal patch on segment A8 (Wagner et al, 2011). The caterpillar overwinters as a mature larva. |
Larvae ID Requirements: Identifiable from close inspection of specimens or by DNA analysis. |