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Species Page - Ceratomia undulosa
Ceratomia undulosa ->species page

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scientific name    Ceratomia undulosa    (Wlk.)

common name     Waved Sphinx

habitat
Tree plantations (farmyards and shelterbelts), urban areas and riparian woodlands.

seasonality
Adults are on the wing late May through June.

identification
A large (7.5-11.0 cm. wingspan) long-winged grey moth with several black streaks and numerous darker wavy lines crossing the wings. The fine, somewhat diffuse wavy lines crossing the forewing in particular, combined with the large size and the dark and white markings on the thorax, are all diagnostic for undulosa in Alberta. The fringe of both wings is checkered black and white. The other large grey sphinx moths of Alberta have either a streaked as opposed to waved forewing (Sphinx chersis and S. vashti), or are mostly very dark grey or black (Sphinx drupiferarum and S. poecila). Royal Alberta Museum page

life history
The Waved sphinx is a nocturnal species which comes to light. Larvae can be found from mid-June to fall, and they overwinter in the soil as pupae. The Waved Sphinx tends to use mainly non-native tree species as hosts, and is thus most abundant where these have been planted such as cities or farmyards. They are most common in southern Alberta, but can be rather common some years in Edmonton. Their occurrence in Alberta may be a rather recent phenomena, as Ken Bowman, who resided in Edmonton and collected widely in Alberta until the early 1950's found it only in the Lloydminster area.

conservation
No concerns.

range
Widespread in North America east of the mountains. It is found throughout much of southern Alberta from about Edmonton south, east of the mountains.

quick link
http://www.entomology.ualberta.ca/searching_species_details.php?s=518



Comments (2)Add New Comment

Rich Johnson (2009-09-26)
I live in Phoenix, AZ and have a Butterfly Bush that is absolutely riddled with the caterpillar. Is there cause for concern. Nobody that has seen them can say that they have ever seen them here before.

gary anweiler (2009-09-27)
Hi Rich

It appears highly unlikely that the caterpillars on your butterfly bush are this species, as it is an eastern species not known to occur in AZ. Furthermore it feeds mainly on woody trees such as Ash and Lilac.

What you may have is larvae of a related species, the White-lined Sphinx, which can and does occur in large outbreaks in the SW, but the larvae look quite different.

Sorry I cannot be of more help !!.

Gary Anweiler

Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.

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References (5)
Specimen Info
There are 9 specimens of this species in the online database
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Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (9)
Related Links
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