Crambid Snout Moth (Herpetogramma sphingealis)
Detailing the physical features, habits, territorial reach and other identifying qualities of the Crambid Snout Moth.
Updated: 9/18/2018; Authored By Staff Writer; Content ©www.InsectIdentification.org
Crambid Snout Moths vary in appearance, but Herpetogramma sphingealis goes a step further with a different look for each gender.
Male Herpetogramma sphingealis moths are shaped somewhat like Sphinx moths having slightly elongated wings. Females have wings that are more square-shaped. Both are a shade of brown, but females generally have a paler, faded hue. A shimmering luster, or sheen, covers both sexes giving the wings a glassy look. A pale spot at the outer edge of each forewing may be roughly bordered in dark brown. This species does not have clear lines crossing the body like similar-looking relatives. The hindwings have white fringe near the body and its forewings have a spot of white on their mostly brown fringe. The ventral (belly) side of the moth is white.
Caterpillars of this species of Crambid Snout Moth eat the fronds of Christmas ferns, a native North American fern found throughout the continent. Adults are on wing from May through early autumn. Look for them in dark, shady areas of forests.