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  • Walnut Sphinx Moth - (Amorpha juglandis)

    Walnut Sphinx Moth - (Amorpha juglandis)

    The Walnut Sphinx Moth is frequently seen east of the Rocky Mountains where nut trees are abundant.

    Staff Writer (2/10/2014): Native to deciduous woodlands, Walnut Sphinx Moths are highly common throughout Missouri with limited appearances in certain portions of other states east of the Rocky Mountains. As a member of the Sphinx Moth family, a robust size is typical for this moth.

    Colors of the Walnut Sphinx Moth differ between individuals so it makes identification of this species a bit more challenging than usual. Overall, they maintain a light or dark brown coloring with bands of white or even pink. The patterns along the wings may or may not appear highly visible at first. With wings extended, these insects tend to take on a more rectangular shape when viewed from above. Their antenna are comb-like and their bodies appeared to be covered in a thick hair with the exception of their leg ends.

    Adult Walnut Sphinx Moths do not eat. They can produce a single brood in the northern states, between May and August, but two broods in the warmer south.

    Walnut Sphinx Moth caterpillars eats the leaves of walnut, butternut, hickory, alder, beech, hazelnut and hop-hornbeam trees. They are capable of making a "squeaking" sound when threatened. It is likely a defensive move that startles a potential predator enough to leave them alone.

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    Details of the:
    Walnut Sphinx Moth

    Category: Butterfly or Moth
    Common name: Walnut Sphinx Moth
    Scientific Name: Amorpha juglandis
    Other Names: Sphinx Moth; Hawkmoth

      Kingdom: Animalia
       Phylum: Arthropoda
        Class: Insecta
         Order: Lepidoptera
          Family: Sphingidae
           Genus: Amorpha
            Species: juglandis

    Size (Adult, Length): 45mm to 75mm (1.77in to 2.95in)

    Identifying Colors: brown; white; pink

    Additional Descriptors: flying

    North American Reach (Though Not Limited To*): Alabama; Arkansas; Connecticut; Delaware; Florida; Georgia; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Nebraska; New Hampshire; New Jersey; New York; North Carolina; North Dakota; Ohio; Oklahoma; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Vermont; Virginia; Washington; West Virginia; Washington; Wisconsin; Wyoming; Ontario; Quebec; Mexico

    * Keep in mind that an insect's reach is not limited by lines on a map and therefore may appear in areas/regions/states beyond those listed above.

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