About Enyo lugubris Linnaeus, 1771
Enyo lugubris, commonly known as the mournful sphinx, is a moth species belonging to the family Sphingidae. Its range extends from Argentina and Paraguay north through Uruguay, Venezuela, Guyana, Suriname, French Guiana, Colombia, Ecuador, Peru, Brazil, and the West Indies, continuing through Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, and Panama to Mexico and the United States. In the United States, it has been regularly recorded from Arizona east to Florida, and north to South Carolina. Stray individuals have also been found in Arkansas, and as far north as Illinois, Michigan, and New York. This species has a wingspan of 50 to 60 mm. In tropical regions, including southern Florida and Louisiana, adult mournful sphinxes are active year-round. In areas further north, adults are active from August to November. The larvae are thought to feed primarily on Vitus tiliifolia and other species in the Vitaceae family, including genera Vitis, Cissus, and Ampelopsis. In Florida, larvae have specifically been recorded feeding on Cissus sicyoides and Ampelopsis arborea.