Petrophila bifascialis, the two-banded petrophila moth, is a moth in the family Crambidae. It was described by Robinson in 1869. It is found in North America, where it has been recorded from Nova Scotia to Florida, west to Texas and north to Ontario.mothphotographersgroup
The wingspan is between 11 and 24 mm. Adults are on wing from late May to September.
The larvae are aquatic, feeding on diatoms and algae.Bug Guide
See also
List of moths of Canada List of moths of the United States
References