Field Guide Descriptions: Covell (1984) | Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLD | Technical Description, Adults: Hodges (1971); Tuttle (2007) | Technical Description, Immature Stages: Tuttle (2007). Not described by Forbes (1948) or Wagner (2005). | |
Adult Markings: This small, heavy-bodied sphinx is smoky brown -- darker beyond the straight postmedian line -- and possess a white discal spot. Unlikely to be confused with any other species. Sexes are similar. |
Wingspan: 5 - 6 cm (Covell, 1984) |
Adult ID Requirements: Identifiable from good quality photos of unworn specimens. |
Immatures and Development: Larvae are various shades of green with a pale subdorsal stripe and the usual sphingid pattern of pale oblique lines along the sides of the body. The head is conspicuously small, with the body narrowing towards the head from the fourth abdominal segment (see Tuttle, 2007) for details. Pupation occurs underground. |
Larvae ID Requirements: Identifiable from good quality photos, especially where associated with known host plants. |