AdultThe Dingy Fritillary is our smallest fritillary. It is very similar to the Frigga Fritillary in wing pattern, but the two never fly together.
Immature StagesUndescribed except for the disjunct subspecies C.i. acrocnema Gall and Sperling, 1980 of Colorado and Wyoming. Scott (1982) described the immatures in detail. The egg is tan. The head of the mature larva is dark brown. The body is brown with various lighter and darker lines and a conspicuous cream dorsal line. The tubercles or scoli are reddish brown.
SubspeciesThe BC subspecies, Young's Fritillary, C.i. youngi (Holland, 1900) (TL: Forty-Mile/Mission Cr., AK), occurs in central Alaska, central and southern Yukon, and across northern BC, just entering Alberta in the Rockies south to Hinton.