Synonyms and other taxonomic changes
Petrophila heppneri Blanchard & Knudson, 1983
Distinguished from other species of Petrophila in Texas by the thin dark line over the submarginal eyespots on the HW. The postmedian area of the HW is speckled with black. The white medial line on the FW is notably zigzag as it approaches the costal margin. There is also a discal bar in the postmedian area of the FW consisting of two thin dark lines sandwiched around a thin orange line. The color patches on the FWs are yellow-orange, in contrast to those of Jalisco Petrophila which are various reddish hues.
Not easily separated from Hodges', Feather-edged, Confusing, or Santa Fe Petrophila, but the ranges of these species don't overlap (see below).
Heppner's Petrophila is the Texas regional representative of the fulicalis species group in the genus Petrophila. The fulicalis species group includes:
P. fulicalis of the eastern U.S., mainly E of the Mississippi River, north to the Great Lakes and New England, south to Virginia and Tennessee.
P. santafealis, endemic to Florida; may occur in central Alabama.
P. hodgesi, described from northwest Arkansas, and probably found in the general Ozark ecoregion.
P. heppneri, described from central Texas, ranging from the Rio Grande to north Texas and east to Houston.
P. confusalis, from southern California north to Washington and Montana.
Separating any of the species *within* this group is a major challenge, thus range should be a major consideration.
Blanchard A. & E.C. Knudson, 1983. Two new species of Pyralidae (Lepidoptera) from Texas.
Proceedings of the Entomological Society of Washington, 85(1): 59-63