Identification
Adult: forewing light brownish-yellow with white streak along costa completely bisected by thin brown longitudinal strip; dark streaks extend inward from lower half of outer margin [lacks a separately-dotted terminal line]; upper half of ST line is an oblique convex arc, and lower half is a concave arc - the two halves forming a curved point where they meet, resembling the crest of a wave; hindwing medium gray with white fringe and some white shading near base and along inner margin.
Range
Ontario and Maine to South Carolina, west to Texas, north to North Dakota
Season
adults fly from April to September
Food
The Moths of North Dakota site and Ohio State University report grasses (Poaceae) as the larval foodplant
Covell's Guide gives "mosses" as the food
See Also
Crambus saltuellus forewing has a smoothly-angled ST line, prominent double black lines from PM to ST line, and a terminal line that breaks into separate dots in lower half of wing
Double-banded Grass-veneer (
C. agitatellus) forewing has a white stripe that may sometimes be partially bisected by a faint yellowish strip but never completely bisected by a brown longitudinal strip
Whitmer's Sod Webworm Moth (
C. whitmerellus) forewing has two white patches in subterminal area, a prominent V-shaped subterminal line, and occurs mainly in the Rocky Mountains
Internet References
live and pinned adult images by various photographers, plus common name reference (Moth Photographers Group)
pinned adult image plus common name reference, description, distribution, similar species, foodplants (Gerald Fauske, Moths of North Dakota)
larval foodplants and adult flight season (Ohio State U.)
presence in Ontario; list (NHIC; Ontario Ministry of Natural Resources)