Synonyms and other taxonomic changes
Lychnosea helveolaria (Hulst, 1881)
Aspilates helveolaria (Hulst, 1881)
Endropia helveolaria Hulst, 1881
Lychnosea aulularia Grote, 1883
L. runcinaria Strecker, 1899
Powell & Opler (2009) reported 2 named species of the genus Lychnosea
in America north of Mexico. (1)
Powell & Opler (2009) listed the forewing length 14-18 mm. (1)
Hulst (1881) listed 17 mm.
Forewing median area is a bright yellowish orange in the females; males are a dull light yellow brown color.
The species page at Moth Photographers Group
has a side by side comparison of pinned a male and female.
Arizona and New Mexico to Colorado. (1)
Hulst (1881) reported the holotype from "Colorado".
Powell & Opler (2009) reported the flight period is late July to August.(1)
Compare on the pinned plates of Moth Photographers Group
Hulst, G.D. 1881. Descriptions of some new species of Geometridae, II. Bulletin of the Brooklyn Entomological Society.
4(5-6). p. 33
Hulst, G.D. 1886. Notes on various species of Ennominae. Entomologica Americana.
2(3). p. 50
, J. 1916. Notes on types of Lepidoptera in Snow Collection. The Canadian Entomologist
48. p. 27
Powell, J.A. & P.A. Opler 2009. Moths of Western North America
. University of California Press. p. 216; plate 30, fig. 3. (1)