Species Details

Ceratomia amyntor

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

Common NameElm Sphinx IdentificationA very large (8.5-11.5 cm wingspan) long-winged moth. The body is brown edged with longitudinal black stripes. The doubled postmedian line on both wings is the only well developed cross line. There are also a number of black longitudinal streaks on the outer half of the forewing and small, light discal spots. Our other large dark sphinx moths from south of the boreal forest are grey, not brown. The adults are similar, but females are larger than males. The larvae are large, pale green with granular skin and pale diagonal lateral streaks. They are easily identified by the four prominent horns on the front end, hence the other common name, the Four-horned sphinx.

Scientific Name Ceratomia amyntor Common Name Elm Sphinx Habitat Frequents hardwood woodland. Identification
A very large (8.5-11.5 cm wingspan) long-winged moth. The body is brown edged with longitudinal black stripes. The doubled postmedian line on both wings is the only well developed cross line. There are also a number…
A very large (8.5-11.5 cm wingspan) long-winged moth. The body is brown edged with longitudinal black stripes. The doubled postmedian line on both wings is the only well developed cross line. There are also a number of black longitudinal streaks on the outer half of the forewing and small, light discal spots. Our other large dark sphinx moths from south of the boreal forest are grey, not brown. The adults are similar, but females are larger than males. The larvae are large, pale green with granular skin and pale diagonal lateral streaks. They are easily identified by the four prominent horns on the front end, hence the other common name, the Four-horned sphinx.
Life History
The adults are nocturnal and come to light. There is a single annual brood, which overwinter as pupae. Mature larvae are most often encountered after they wander from the host tree and seek a place with loose soil in…
The adults are nocturnal and come to light. There is a single annual brood, which overwinter as pupae. Mature larvae are most often encountered after they wander from the host tree and seek a place with loose soil in which to pupate. The only Alberta record is for June 3, 2004.
Diet Info Larvae are reported to feed on elm, birch, basswood and cherry. Range Nova Scotia west to the eastern edge of Alberta, south to Florida and Mexico. There is a single Alberta record for a fresh female collected at MV light on the edge of the Red Deer River north of Jenner.
Ceratomia amyntor
Ceratomia amyntor

Citation

Page Citation for Ceratomia amyntor

Page Citation

"Species Details - Ceratomia amyntor, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-6157. Accessed 29 Mar. 2024.

Authorship

Name Anweiler, G. G.
Role species page author
Date 2007

References

Specimen Information

There is 1 specimen of this Species.

1 result plotted on map in 1 marker.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM59550 - Ceratomia amyntor

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Jenner Collected ByAnweiler, G. G.; Schmidt, B. C. Date Collected2004-06-03/2004-06-04

Adult Seasonal Distribution