Field Guide Descriptions: Covell (1984); Beadle and Leckie (2012) | Online Photographs: MPG, BugGuide, GBIF, BOLD | Technical Description, Adults: Forbes (1948); Hodges (1971); Tuttle (2007) | Technical Description, Immature Stages: Forbes (1948); Wagner (2005); Tuttle (2007) | |
Adult Markings: A large Sphinx Moth with forewings with a dark gray central shade running from the base to the apex, bounded by pale brownish gray on the costa and outer margin. This species looks like a very large, dark S. gordius but the forewing areas that are light in S. gordius are dark in S. drupiferarum and vice-versa. Sexes are similar. |
Wingspan: 9 - 11 cm (Covell, 1984) |
Adult ID Requirements: Identifiable from good quality photos of unworn specimens. |
Immatures and Development: Larvae are similar to those of other members of this genus with a green body and seven white oblique stripes along its sides (see Forbes, 1948, and Wagner, 2005 for details). |