• Local names

• Language	Vernacular name
  English (US)	Elm Sphinx
  English (US)	Four-horned Sphinx

• Synonyms and other combinations

• Latin name	Author
  Agrius amyntor	Geyer, 1835
  Ceratomia quadricornis	Harris, 1839
  Ceratomia ulmi	Boisduval, 1875

• Links

• Language	Website	Authors
  	Butterflies and Moths of North America
  	North American Moth Photographers Group
  	Pacific Northwest Moths
  	Silk Moths	Bill Oehlke
  	Sphingidae Taxonomic Inventory	Ian Kitching

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