Psychomorpha epimenis

The combination of diurnal activity, black-and-white banded forewings, and bright orange-red hindwings distinguishes this species from most other North American noctuids. Similar species in the genus Psychomorpha (P. epimenis and P. sagittifera) can be separated by wing pattern details: P. epimenis has more extensive white markings on the forewing and a different arrangement of the orange-red patch on the hindwing. The related day-flying tiger moths (Arctiinae) generally lack the bold black-and-white forewing pattern with contrasting orange hindwings.

Deciduous woodlands, forest edges, vineyards, and riparian areas where host plants occur. Often found in sunny openings and along trails where adults perch on vegetation.

Eastern and central North America, from southern Canada (Ontario, Quebec) south to Florida and west to Texas and Oklahoma. Absent from most of the western United States.

Adults active from early spring (March–April in the southern range) through summer, with peak activity in April–May. Multiple generations per year in southern portions of range; single or partial second generation in northern areas.

Larvae feed on grape species (Vitis spp.) and related Vitaceae including Virginia creeper (Parthenocissus quinquefolia). Adults have been observed visiting flowers for nectar.

• Vitis - larval hostprimary host genus
• Parthenocissus quinquefolia - larval hostVirginia creeper

Eggs laid on host plant leaves. Larvae feed externally on leaves, often resting on the undersides. Pupation occurs in a loose silken cocoon among leaf litter or on the host plant. Overwintering stage varies by latitude; may pupate or overwinter as larva in northern range.

Adults are diurnal and active in bright sunlight, unusual for Noctuidae. They fly rapidly and erratically, often perching with wings spread flat to display the orange hindwings. Adults are known to bask on sunlit surfaces. Larvae are solitary feeders.

Larval herbivore on native and cultivated grape species. Serves as prey for birds, spiders, and insect predators. Adult pollination of early spring flowers has been observed but not quantified.

Occasional minor pest in vineyards, though rarely reaching economically damaging levels. The striking appearance makes it a subject of interest for naturalists and photographers. Sometimes mistaken for a butterfly due to diurnal habits.

• Psychomorpha sagittiferaOnly other species in genus; differs in forewing pattern with less extensive white and more restricted orange hindwing patch; range more restricted to southeastern United States
• Arctia virginalis (Virgin Tiger Moth)Also diurnal with orange hindwings, but forewings are spotted rather than banded; belongs to different subfamily (Arctiinae)
• Lithosia quadraEuropean species with similar black-and-white pattern but lacks orange hindwings; not naturally sympatric

Frequently mistaken for a butterfly due to its diurnal activity and bright coloration; this is a true moth in family Noctuidae. The common name 'Grapevine Epimenis' sometimes leads to confusion with grape berry moths (Paralobesia viteana), a separate species of economic importance.

• diurnal moth
• grape pest
• North American endemic
• day-flying noctuid
• vineyard associated

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life