Heterogenea shurtleffi
Packard, 1864
Red-eyed Button Slug Moth
Heterogenea shurtleffi, known as the Red-eyed Button Slug , is a North American in the Limacodidae. The refers to the distinctive red eyespot markings on the wings. Like other slug caterpillar moths, the larvae have reduced and move with a characteristic slug-like motion. The species has been documented across a broad geographic range in eastern and central North America.

Pronunciation
How to pronounce Heterogenea shurtleffi: /ˌhɛtɛrəˈdʒiːniə ˈʃɜːrtlɛfi/
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Identification
The red eyespot on the forewing is diagnostic and distinguishes this from other small grayish . The eyespot is circular with a black center, surrounded by red and then a pale ring. Similar Limacodidae species lack this precise eyespot pattern or have different coloration. The compact body shape and resting posture with wings held tent-like over the body are consistent with the but not unique to this species.
Images
Habitat
Deciduous and mixed forests, woodlands, and suburban areas with trees. Found in areas with oak and other hardwood . are attracted to light.
Distribution
Eastern and central North America, from the northeastern United States west to the Great Plains and south to the Gulf Coast. Documented from Canada (Ontario, Quebec) through the eastern United States.
Seasonality
are active from late spring through summer, with peak activity in June and July in most of the range. Larvae present in summer and early fall.
Host Associations
- Quercus - larval oaks
Behavior
are and attracted to light. Larvae feed exposed on leaves, moving with the characteristic slug-like gliding motion due to reduced . The larval locomotion method is shared with other Limacodidae.
Ecological Role
Larval herbivore on oak and possibly other hardwood trees. Role in as prey for birds and other . Specific ecological impacts are not well documented.
Human Relevance
Minor occasional pest of oak trees; larvae may cause localized defoliation. Not considered economically significant. The distinctive appearance makes it a subject of interest for enthusiasts and naturalists.
Similar Taxa
- Other Limacodidae speciesShare the slug-like larval form and compact body, but lack the distinctive red eyespot pattern on the forewing.
- Tortricidae speciesSimilar small size and resting posture, but have more triangular wing shape and lack the circular red eyespot; larvae are not slug-like.
More Details
Taxonomic note
Heterogenea is a small within Limacodidae; H. shurtleffi is the most widely distributed and commonly encountered in the genus in North America.
Etymology
The specific epithet shurtleffi honors an individual, likely a naturalist or collector from the 19th century when the was described by Packard.