Synonyms and other taxonomic changes
Lemonias mormo C. Felder & R. Felder, 1859. Type locality: Salzee [= "Salt Lake" in German], apparently in Nevada [F. Martin Brown suggested the east flank of the Californian or Nevadan mountains near Reno and Carson City, Nevada (1967), J. Lepid. Soc. 21(4): 272; L. Miller & F. Martin Brown narrowed it to “near Pyramid Lake, Washoe Co., Nevada” (1981), Mem. Lepid. Soc. (3): 131; J. Emmel [et al] went with “Davis Creek Park, W. of Washoe Lake, Washoe County, Nevada” (1998), Syst. W. N. Am. Butts. (5): 89]
Nemeobius dumeti Behr, 1865. Type locality: California [neotype from Davis Creek Park, west of Washoe Lake, Washoe County, Nevada]
Chrysobia mormonia Boisduval, 1869. Type locality: Oregon
Apodemia mormo parva Austin, 1998. Type locality: west slope of Diamond Mountains, 0.8 miles north of Eureka, Eureka County, Nevada
Explanation of Names
The name "parva" was probably applied to slightly more eastern populations than the name "mormo" (which had an ill-defined type locality), but as currently recognized they differ little from one another, and the imaginary division between westerm and eastern cuts rather arbitrarily right through a continuous distribution of this type of insect. Insects from west of the Sierra Nevada and Tehachapi Mts. in California may represent a distinct subspecies, but look similar and are tentatively included here.
California and Oregon, east across the Columbia Basin, Great Basin, Rockies, and Colorado Plateaus onto northern and western Great Plains. Specimens which by appearance should belong here (or to ssp. autumnalis) also occur widely in Baja California in Mexico.
Mostly one flight sometime in late spring or summer. Perhaps more than one flight in milder climates in the southwest of the range.