Amphion floridensis

Amphion floridensis, the Nessus sphinx, is a day-flying moth of the family Sphingidae. The species was named by Benjamin Preston Clark in 1920. It is the only member of the genus Amphion erected by Jacob Hübner in 1819. It lives throughout the eastern United States and Canada and occasionally south into Mexico, and is one of the more commonly encountered day-flying moths in the region, easily recognized by the two bright-yellow bands across the abdomen.

Nessus sphinx
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Sphingidae
Subtribe: Macroglossina
Genus: Amphion
Hübner, 1819
Species:
A. floridensis
Binomial name
Amphion floridensis
Synonyms
  • Sphinx nessus Cramer, 1777

Description

The wingspan is 37–55 mm.[2]

  • Female
  • Female underside
  • Male
  • Male underside

Biology

Adults are on wing from April to July in one generation in the north and in two generations in the south.[3] The adults feed on the nectar of various flowers, including Syringa vulgaris, Geranium robertianum, Kolkwitzia amabilis, Philadelphus coronarius, and Phlox species.

The larvae feed on Vitis, Ampelopsis, and Capsicum species.[4]

Taxonomy

It was first described as Sphinx nessus by Pieter Cramer in 1777. This name was invalid, because Dru Drury had already used it for another species (Theretra nessus) in 1773. A replacement name was published in Benjamin Preston Clark in 1920.

Images
  • Flying on a lilac
  • Side view
gollark: Yes, the unused ones.
gollark: You weren't using them.
gollark: The bunkers we store our excess bees in?
gollark: Too bad.
gollark: You really ought to check for the acknowledgement message.

References
  1. "CATE Creating a Taxonomic eScience - Sphingidae". Cate-sphingidae.org. Archived from the original on 2012-11-08. Retrieved 2011-10-26.
  2. "Amphion floridensis The Nessus Sphinx B. P. Clark, 1920". Sphingidae of the Americas. Archived from the original on April 9, 2015. Retrieved October 26, 2011.
  3. Bartlett, Troy (July 31, 2018). "Species Amphion floridensis - Nessus Sphinx - Hodges#7873". BugGuide. Retrieved December 3, 2018.
  4. Lotts, Kelly & Naberhaus, Thomas (2017). "Nessus sphinx Amphion floridensis B.P. Clark, 1920". Butterflies and Moths of North America. Retrieved December 3, 2018.


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