Pheosia rimosa

Pheosia rimosa, the black-rimmed prominent moth, fissured prominent or false-sphinx, is a moth of the family Notodontidae. The species was first described by Alpheus Spring Packard in 1864.[1][2] It is found from coast to coast in North America, although it is less common in the south-eastern United States.[3]

Pheosia rimosa
Pheosia rimosa taiwanognoma
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Notodontidae
Genus:
Pheosia
Species:
P. rimosa
Binomial name
Pheosia rimosa
Packard, 1864
Synonyms
  • Notodonta californica Stretch 1872
  • Pheosia portlandia H. Edwards, 1886
  • Pheosia taiwanognoma Nakamura, 1973

The wingspan is 43–62 mm. Adults are dark black-brown and white. The forewings are white with a dark strip along the costa and along the entire lower margin. The hindwings are white with a dark blotch in the anal angle.[4] Adults are on wing from spring to fall.

The larvae feed on the leaves of Populus and Salix species. They resemble young hornworm larvae of the family Sphingidae. The color is variable and can be yellow, lavender, pink, green, brown or nearly black. Full-grown larvae can reach a length of about 45 mm. The species overwinters in the pupal stage.

Subspecies
  • Pheosia rimosa rimosa
  • Pheosia rimosa taiwanognoma Nakamura, 1973 (Taiwan)

Taxonomy

Pheosia portlandia was previously treated as a distinct species, replacing P. rimosa in Pacific coastal forests. Research has concluded that Pheosia portlandia is a synonym of P. rimosa.

References
  1. Savela, Markku. "Pheosia rimosa Packard, 1864". Lepidoptera and Some Other Life Forms. Retrieved January 14, 2018.
  2. "930012.00 – 7922 – Pheosia rimosa – Black-rimmed Prominent – Packard, 1864". North American Moth Photographers Group. Mississippi State University. Retrieved November 11, 2020.
  3. McLeod, Robin (August 24, 2013). "Species Pheosia rimosa - Black-rimmed Prominent - Hodges#7922". BugGuide. Retrieved November 11, 2020.
  4. Robinson, E. & Anweiler, G. G. "Species Details Pheosia rimosa". University of Alberta Museums. E.H. Strickland Entomological Museum. Retrieved November 11, 2020.


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