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Scientific Name Pyrrharctia isabella Common Name Isabella Tiger Seasonality Mid June to mid July. Identification The amount of black on the forewing is somewhat variable, but this species is fairly distinct with its yellow ground colour and black markings. Females have a pink tinge to the hindwing, whereas males have a yellow hindwing. Life History No information available. Conservation Although widespread, this species is usually not common. Diet Info Known to feed on a wide variety of plants, primarily herbs and forbs. Range Widespread across the U.S. and southern Canada. It is likely at its northern range limit in the southern boreal forest of Alberta.