Aroga epigaeella

The combination of dark purple-brown forewings with paired opposing white spots (costal and dorsal) before the apex, plus additional minute white flecks on the fold and at the cell end, distinguishes this species from similar small gelechiids. The visible translucency of the costal spot through the wing is a notable feature. The specific epithet and association with Epigaea repens host plants may aid identification where the host occurs.

Adults are small moths with dark purple-brown forewings. The forewings bear a prominent white costal spot before the apex and an opposing white dorsal spot. Before these larger spots, the wing surface is flecked with several minute white spots, with the two largest positioned on the fold and another at the end of the cell. The costal white spot is visible through the wing. Hindwings are fuscous (dusky gray-brown).

Associated with habitats supporting its host plant, Epigaea repens, which grows in acidic, sandy or rocky soils in woodlands, often in pine-oak forests and along woodland edges. The moth has been recorded in suburban settings with suitable host plant presence.

Recorded from Georgia, Louisiana, Maine, Maryland, Massachusetts, Mississippi, Oklahoma, South Carolina, and Texas. Distribution records also include California and additional US localities in GBIF data. The species appears to be primarily eastern and south-central North American in distribution.

Adults have been recorded on wing from April to September, indicating a multi-month flight period spanning spring through late summer.

Larvae feed on Epigaea repens (trailing arbutus). Adult feeding habits are not documented.

• Epigaea repens - larval host planttrailing arbutus; ericaceous shrub of acidic woodlands

Larval stage feeds on Epigaea repens. Specific details of egg, pupal, and larval instar development are not documented. Adult emergence occurs from April through September, suggesting either overlapping generations or an extended single generation.

Adults are nocturnal and attracted to ultraviolet light sources. No other specific behaviors are documented.

As a specialist herbivore on Epigaea repens, the larvae likely contribute to nutrient cycling and energy flow in acidic woodland ecosystems. The species may serve as prey for insectivores, though specific predator relationships are not documented.

No direct economic or agricultural significance. The species may be encountered by citizen scientists during moth lighting events, particularly during National Moth Week observations. The host plant, Epigaea repens, is the state flower of Massachusetts.

• Aroga unifasciellaSimilar genus and size; differs in forewing pattern details and host plant associations
• Other Aroga speciesGenus members share small size and gelechiid morphology; specific spot patterns and host plants distinguish A. epigaeella
• Unidentified small gelechiidsMany small gelechiids require genitalia dissection or host plant confirmation for reliable identification; A. epigaeella is distinguished by its distinctive paired white spots and Epigaea association

• Gelechiidae
• specialist herbivore
• Epigaea
• trailing arbutus
• nocturnal
• UV-attracted
• eastern North America
• woodland moth

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• Catalogue of Life
• Bug Eric: It's National Moth Week Already?!