Synonyms and other taxonomic changes
described in 1852 by Guenee, who originally placed it in genus Gortyna
Size
wingspan about 31 mm, based on photo by Jim Vargo at MPG
Identification
Adult: FW dark brownish-gray with a line of 3 white spots in AM area and a cluster of white spots representing the reniform spot (in each case, the central spot is usually pale yellowish); PM line fairly smooth, gently curving near costa, straighter and paler near inner margin; no pale spots at base of wing; area beyond PM line slightly more grayish than remainder of wing; HW dirty white to pale brownish-gray, much paler than FW
Range
eastern United States: Oklahoma to North Carolina, north to Illinois and Michigan; type specimen collected in Illinois
Habitat
weedy areas where larval foodplant grows; adults are nocturnal and come to light
Season
adults fly from late August to October
Food
larvae have been reported to feed within stems of
burdock (
Arctium spp.) and
Giant Ironweed (
Vernonia gigantea [=altissima])
See Also
Culver's Root Borer (Papaipema sciata) forewing has a slightly different pattern of white spots, the species is less common than
P. limpida, and its larvae feed on stems of
Culver's Root (
Veronicastrum virginicum)
Other Papaipema species have a paler forewing and/or pale spots at base of forewing -- compare adult images of several species in MPG Internet References below
Internet References
pinned adult image and photos of related species by Jim Wiker, plus common name reference (Moth Photographers Group)