About Spilosoma vagans Boisduval, 1852
Spilosoma vagans, commonly known as the wandering diacrisia or wandering tiger moth, is a species of moth in the family Erebidae. This species was first described by Jean Baptiste Boisduval in 1852. It is distributed in western North America, with its range extending north from southern California, southern Utah, and central Colorado to southern British Columbia and southwestern Alberta. Its habitat includes drier forests, specifically open ponderosa pine forests and mixed hardwood-conifer forests. The forewings of adult individuals measure 14–18 mm in length. Adult moths can be seen in flight from late April to early August. The larvae of Spilosoma vagans feed on a variety of herbaceous plants.