Northern Prairie Wildlife Research Center
Caterpillars of Pacific Northwest
Forests and Woodlands
Photo Key to Species
Group A-1b -- Subgroups: Body wall smooth - The body wall of species in group A-1b is not extended into tubercles or warts.
Distinct spiracular line - Species in this subgroup have a distinct spiracular line, typically white, and the body is more or less uniformly colored or evenly patterned with faint markings.
Return to Photo Key to Species in Group A-1b
Next Section -- Dorsum color different than subspiracular area