Pachysphinx occidentalis

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Big poplar sphinx
Western Poplar Sphinx imported from iNaturalist photo 309224459 on 1 April 2024.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Sphingidae
Genus: Pachysphinx
Species:
P. occidentalis
Binomial name
Pachysphinx occidentalis
(H. Edwards, 1875) [1]
Synonyms
  • Smerinthus occidentalisEdwards, 1875
  • Pachysphinx imperator(Strecker, 1878)
  • Pachysphinx modesta kunzeiRothschild & Jordan, 1903

Pachysphinx occidentalis, the big poplar sphinx, is a moth of the family Sphingidae. The species was first described by Henry Edwards in 1875. It lives throughout Canada and the United States. The habitat consists of riparian areas and suburbs.

Contents

The wingspan is 130–150 mm. There are two color forms, a pale form with yellow-brown forewings, which are dark gray in the dark form. The lines and bands are well defined. The upperside of the hindwing has a crimson patch covering varying amounts of the wing, and two dark lines which do not form a distinct triangle.

There are two generations per year in southern Arizona with adults on wing from May to September. Farther north, there is one generation per year with adults on wing from June to August.

The larvae feed on cottonwood Populus and Salix species.

Subspecies

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<i>Proserpinus terlooi</i> Species of moth

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References

  1. "CATE Creating a Taxonomic eScience - Sphingidae". Cate-sphingidae.org. Archived from the original on 2012-12-20. Retrieved 2011-11-01.PD-icon.svg This article incorporates text from this source, which is in the public domain.