Amorpha juglandis
Species of moth
From Wikipedia, the free encyclopedia
Amorpha juglandis, the walnut sphinx, is the only species in the monotypic moth genus Amorpha, which is in the family Sphingidae, erected by Jacob Hübner in 1809. The species was first described by James Edward Smith in 1797.
| Walnut sphinx | |
|---|---|
| |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Sphingidae |
| Tribe: | Mimatini |
| Genus: | Amorpha J. Hübner, 1809 |
| Species: | A. juglandis |
| Binomial name | |
| Amorpha juglandis (J. E. Smith, 1797)[2] | |
| Synonyms[2] | |
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Distribution
It is native to North America, where it is distributed from the Atlantic Ocean to the Rocky Mountains in Canada and the United States.
Description
The wingspan is 45–75 mm.
Female
Female underside
Male
Male underside
Biology
The adult moth is nocturnal, active mainly during the early hours of the night.[3]
The caterpillar feeds on alder (Alnus), hickory (Carya), hazelnut (Corylus), beech (Fagus), walnut (Juglans), and hop-hornbeam (Ostrya) species. When attacked by a bird, the caterpillar produces a high-pitched whistle by expelling air from pairs of spiracles in its abdomen. This antipredator adaptation may startle the bird, which may then reject the caterpillar.[citation needed]
