The holotype is a male reared by R. E. Dietz and P. A. Opler from a caterpillar (J. Powell 70F95) collected on Fandango Pass, Modoc County, at 6100 feet elevation, on 12 or 13 June l970, which emerged from its cocoon on 7 July (of the same year), although specimens are known to have been collected since at least 1962.