Amorpha juglandis
| Walnut sphinx | |
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A. juglandis
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| Amorpha juglandis (J. E. Smith, 1797)[1]
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The walnut sphinx (Amorpha juglandis) is a moth of the family Sphingidae. It is native to North America, where it is distributed from the Atlantic Ocean to the Rocky Mountains in Canada and the United States.
The wingspan is 45–75 mm. The adult moth is nocturnal, active mainly during the early hours of the night.
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 pair of spiracles in its abdomen. This antipredator adaptation may startle the bird, which may then reject the caterpillar.[2]
References
Further reading
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External links
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