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Digital Guide to Moth Identification

890103.007787Ceratomia undulosa – Waved Sphinx Moth – (Walker, 1856)

Mark Dreiling - DNA
Distribution: Prince Edward Island to Alberta, North Dakota and Colorado, southward to Florida and western Texas.
and Size:
Two broods in the south from March to October, one brood in the north from May to August. Glaser reports this moth as common throughout Maryland between 28 April and 8 September. Wingspan 78 - 110 mm.
Larva and
Host Plants:
Light green hornworm, red/brown forms may be encountered: the horn may be pink. Seven pairs of oblique lateral stripes, and a broad stripe on the head from eyes to crown. Convex anal plate and anal prolegs with raised black spots Spiracles have a white center, edged with orange. Ash is the preferred food plant, but lilac, privet and fringe-tree may also be eaten.
Field Marks:
  • forewing usually pale brownish gray. Some individuals, particularly from the northern Great Plains, may be very dark, and others may be pale yellowish brown.
  • jagged black lines and black dashes on forewings well defined.
  • reniform spot large, white with black outline.
  • hindwing gray with diffuse darker gray lines.
Similar Species: See discussion under 7786 - Elm Sphinx, C. amyntor.
Data compiled and contributed by Nolie Schneider from references cited.

Ceratomia undulosa
Machele White
Ceratomia undulosa
John Himmelman
Ceratomia undulosa
Nolie Schneider
Ceratomia undulosa
Ken Childs
Ceratomia undulosa
85mm – Jim Vargo
Ceratomia undulosa
Canadian National Collection LG

Ceratomia undulosa
Bev Wigney

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