Oidaematophorus occidentalis

Oidaematophorus occidentalis is a moth of the family Pterophoridae. It is found from Alberta and British Columbia to Arizona and Utah.[3]

Oidaematophorus occidentalis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Pterophoridae
Genus: Oidaematophorus
Species:
O. occidentalis
Binomial name
Oidaematophorus occidentalis
Synonyms
  • Oedaematophorus occidentalis Walsingham, 1880
  • Stenoptilia californica Grinnell, 1908

The wingspan is 26–29 millimetres (1.0–1.1 in). The species is extremely variable, but can be generally described as follows. The head, thorax and abdomen are creamy white to dull tawny-brown, the head with a pale patch between the antennae. The forewings are the same colour as the thorax, normally with a heavy brown costal mark over the base of the cleft, preceded and followed by a few whitish scales. This patch is connected with a small brown triangular shade before the cleft. The wing is marked with cloudy brown areas and the first lobe is light brown, but these areas are not conspicuously powdery, due to the lack of contrast between the brown scales and tawny ground colour. The fringes are tawny-grey. The hindwings are brownish and shining, with paler fringes.[4]

The larvae feed on Aster, Grindelia[5] and Helianthus species.

References
  1. Moth Photographers Group
  2. Further Notes On Canadian Plume Moths (Lepid., Pterophoridae) by J. Mcdunnough, The Canadian Entomologist, 1936, 68
  3. Description of Families of Lepidoptera
  4. Contributions to the natural history of the Lepidoptera of North America
  5. Pterophorid Descriptions and Notes (Lepid.) Archived 2012-07-14 at Archive.today


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