Eastern Snout

Libytheana bachmanii is an eastern North American snout butterfly. Genome-scale work published in 2026 restored its species rank, separating it from the broader former concept of L. carinenta. [1]

Long labial palps form the apparent snout. Orange, black and white wing areas accompany squared forewing tips. Eastern adults typically span about 41–51 mm. [2]

In southern New England it is an irregular visitor, recorded along woodland edges, paths, shrubby fields and coastal sites. Massachusetts records extend from June into October. [2]

The Massachusetts atlas recorded four individual sightings during 1986–1988, at Salem, Natick, Sudbury and Milton. [2]

Females place pale green, ribbed eggs singly on new growth. Caterpillars are green with yellow lines and spots. The green chrysalis hangs from its terminal attachment; adults do not overwinter in New England. [2]

Larvae feed on hackberries, Celtis species. [2]

During June observations at Guilford, one adult fed at mock orange flowers, Philadelphus coronarius, while two rested on apple bark. [3]