Montana Field Guide

C. divesta larvae are pale black tinged with purple, and with a yellow mid-dorsal line and yellow subdorsal stripes. The spiracles are brown and the head is pale brown with dark brown flecks (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.

Adults have a single flight from late June to early September (Powell and Opler 2009).

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.

The larvae are reported to feed on grasses (Poaceae) (Powell and Opler 2009).