Day: September 15, 2015

Black swallowtail in September

Black swallowtail (Papilio polyxenes) nectaring on verbena in September. According to NABA-North New Jersey Butterfly Club website, black swallowtails are black with a prominent line of large yellow spots across both wings as well as smaller submarginal yellow spots. Females have blue spots on hindwing… Continue Reading “Black swallowtail in September”