![]() Their caterpillars can reach over 5 inches in length when full grown. The life histories of the Pandora and Achemon sphinx moths are very similar. ![]() A smaller species, the Virginia creeper sphinx ( Darapsa myron, also known as the hog sphinx), is also often found feeding on grapevines. There are three common grape-feeding species in the state with the Pandora sphinx, Eumorpha pandorus, and the Achemon sphinx, Eumorpha achemon, being the largest. Michigan grape growers face a number of different insect pest challenges every year, but by far the biggest insects they encounter are the “hornworm” caterpillars of sphinx moths.
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