Twin-spotted Sphinx
Common NameTwin-spotted Sphinx
Scientific NameSmerinthus jamaicensis
FamilySphingidae
SubfamilySmerinthinae
Wingspan (mm)70
Primary Colorsgrey, brown, pink, blue, black
HabitatDeciduous forests, woodlands, riparian areas, suburban gardens
Geographic RangeNorth America (from southern Canada to northern Florida and west to the Pacific coast)
Host Plantswillow, poplar, birch, ash, elm, cherry, apple
Flight PeriodMay to September
Conservation Statusleast-concern
Lifecycle NotesLarvae are typically green with white stripes and a caudal horn, feeding on the leaves of various trees and shrubs. They pupate in a chamber underground, often overwintering in this stage before emerging as adults.
Identification TipsKey identification features include the two distinct blue-black spots within a pink patch on each hindwing, which are often visible even when the moth is at rest. The forewings are mottled grey-brown with variable wavy lines, providing camouflage.
Description
This robust moth features cryptic grey-brown forewings with wavy patterns, which conceal vibrant pink hindwings, each bearing two prominent blue-black eyespots. Its body is stout and greyish-brown, often with a darker, reddish-brown thorax.
