Taxonomy of southern California Erebidae and Noctuidae (Lepidoptera) with descriptions of twenty one new species Author Mustelin, Tomas text Zootaxa 2006 1278 1 47 journal article 10.5281/zenodo.273509 899ffdc9-d0a8-4d5d-946e-a7cb59be3020 1175­5326 273509 Idia occidentalis (Smith, 1884) , REVISED STATUS Fig. 22 Based on differences in the genital morphology between Idia lubricalis (Smith, 1895) , from the eastern U.S. , and Idia lubricalis occidentalis , from southern California, I elevate the latter to species status as originally proposed by Smith. Superficially, I. occidentalis is larger and considerably paler than I. lubricalis . The male valve of occidentalis ( Fig. 22 ) is straighter than that of lubricalis ( Fig. 23 ) at the point where the valve makes a more pronounced outwards angle. Consistent with its Latin name, I. occidentalis occurs from California as far north as Wyoming, and east to New Mexico and Arizona. The type locality is Havilah, Kern County, California. Idia lubricalis occurs in the eastern U.S. and reaches the Pacific Northwest, where it is sympatric with I. occidentalis .