Montana Field Guide

The Lacinipolia stricta forewing is dark brown in the median area, and paler yellowish-brown in the basal and subterminal areas. The terminal area is dark brown mixed with black. The reniform spot is pale brown, angular, with a conspicuous thick white outline. The hindwing is dirty brownish-gray with a pale yellowish terminal line and fringe (Powell and Opler, 2009).

Shropshire and Tallamy (2025) provide a list, with synonymies, of 13,055 described native, exotic, and occasional straying Lepidoptera species of North America, north of Mexico; known but undescribed taxa, taxa with unresolved taxonomy, and excluded species are also included. The main manuscript includes links to supplementary materials, including a reference list for Lepidoptera of North America north of Mexico, and a filterable spreadsheet with information on taxonomy, synonymy, size ranges of species, distribution by state, province, and country with references, and host-plant Family and Genus associations with references.

Shropshire and Tallamy (2025) provide a link to a supplemental filterable spreadsheet with information on host-plant Family and Genus associations with references for all Lepidoptera species of North America, north of Mexico.