Two-banded Petrophila
Common NameTwo-banded Petrophila
Scientific NamePetrophila bifascialis
FamilyCrambidae
SubfamilyAcentropinae
Wingspan (mm)20
Primary Colorsbrown, tan, white, black, orange, gold
HabitatFreshwater aquatic environments (streams, rivers, ponds) and riparian zones
Geographic RangeEastern and Central North America
Host Plantsalgae, diatoms
Flight PeriodMay to September
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae are aquatic, living in silken tubes on rocks in flowing water, where they feed on algae. Pupation occurs underwater in a cocoon, and adults emerge to a short-lived terrestrial phase.
Identification TipsKey features include the distinctive black and iridescent gold spot near the forewing apex, the white subterminal band on the forewings, and the bold orange and white banding on the hindwings. Its presence near freshwater habitats is also a strong indicator.
Description
A small moth with mottled brown and white forewings, featuring a prominent black patch with iridescent gold scales near the apex and a distinct white subterminal band. The hindwings, partially visible, display striking orange and white banding.
