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Eumorpha achemon (Achemon sphinx) is a moth of the family Sphingidae. It is native to North America, where it is known from most of the United States, southern Canada, and northern Mexico. It is rare or absent in the Pacific Northwest, Great Basin, and Southeastern United States except Florida.
Adults are on wing from June to August in one generation in the northern part of the range. There are two generations with adults on wing from May to August in the south. Adults feed on the nectar of various flowers, including Lonicera japonica, Petunia × hybrida, Philadelphus coronarius, and Phlox species. It is one of three main pollinators of the rare orchid Platanthera praeclara.
Larvae are of three forms: light green, reddish orange, and tan to brown. They are known to feed on Parthenocissus quinquefolia and Ampelopsis species. They are often found on wild and cultivated Vitaceae, including grapes, and they can sometimes be found in vineyards feeding on the leaves.
- Achemon sphinx Butterflies and Moths of North America
- Eumorpha achemon Moth table of Virginia Creeper
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