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Species Page - Smerinthus cerisyi
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scientific name    Smerinthus cerisyi    

common name     One-eyed Sphinx, Eyed Hawk-moth

seasonality
Adults have been collected in Alberta from late April to mid-August, an unusually long flight period

identification
A large (6.2-9.0 cm wingspan) heavy-bodied sphinx moth. Forewings are pale grey (occasionally tan) with a rather complex pattern of darker grey and black banding. The median and terminal areas in particular are dark. Outer margin of the forewing is scalloped, with a "tooth" at the anal angle. The hindwings are bright rose-pink, shading into tan toward the margin. There is a large black spot in the anal angle containing a bright blue circle, often incomplete and sometimes with a second blue crescent above. Thorax is black, contrasting sharply with the broad pale grey tegulae. The very similar S. jamaicensis has two blue bars instead of a blue circle in the hindwing spot, and the pink is sharply divided from the tan outer part of the hindwing. Pectinations on the male antennae are also much shorter in cerisyi than in jamaicensis.

life history
One of the most common Alberta sphinx moths. The adults are nocturnal and come to lights. Larvae are solitary defoliators. The long flight period may indicate that there is more than one generation per year in Alberta.

conservation
Common.

diet info
In Alberta, willow (Salix); elsewhere willows, poplars (Populus), pear and plum (Prunus), and snowberry (Symphoricarpos). Aspen poplar and willows appear to be the major hosts.

range
Newfoundland west to Yukon and Vancouver Island, south to northern Mexico, including the Baja. A common moth, found in wooded or shrubby areas throughout Alberta.

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=543



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References (4)
Specimen Info
There are 228 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (228)
Related Links
Moth Photographers Group

 

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