This site has been created by
Bill Oehlke at firstname.lastname@example.org
Comments, suggestions and/or additional information are welcomed by Bill.
Family: Sphingidae, Latreille, 1802
copyright C. Odenkirk
The Snowberry Sphinx, Sphinx vashti, (Wingspan 68 to 94 mm), flies from Texas west to California, north to British Columbia and east to Manitoba.
The specimen to the right, in typical resting pose, is from southern Vancouver, British Columbia, courtesy of Jeremy B.Tatum and Dr. John Snyder.
The basic ground colour of the wings varies from pale gray to almost black. The upperside of the forewing has a narrow black subterminal line bordered by a white inverted V-shaped line on the outside, and a black line running inwards from the apex of the wing. There are two black dashes and a series of lines along some veins. The abdomen varies from pale gray to black with five light bands running dorso-ventrally.
Visit Sphinx vashti, Adams Lake, British Columbia, courtesy of Kathy Francoeur.
The image below is courtesy of Mary Matthews, Taylor, British Columbia, June 9, 2004.
Sphinx chersis, Sphinx perelegans and Sphinx vashti are quite similar. Sphinx perelegans has a dark upper thorax with wide black bars extending to the abdomen. In Sphinx chersis the entire thorax is uniform light blue-grey with very narrow dark lines.
Sphinx vashti, most similar to S. perelegans, lacks the checkered fringe on the hindwings. See image at top of page.
EGGS, LARVAE, PUPAE:
Mature larvae are green with seven pairs of lateral, white, oblique bands which are bordered anteriorly with black. The anal horn is smooth and black.
Larvae feed on the common snowberry (Symphoricarpos albus) and on coralberry (S. orbiculatus).
Images courtesy of Jeremy B. Tatum and Dr. John Snyder.
The pupa is a light chestnut brown with a sharp cremaster and projecting tongue casing.
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