The Wing Atlas
Spotted Grass Moth

Spotted Grass Moth

Common NameSpotted Grass Moth
Scientific NameRivula propinqualis
FamilyErebidae
SubfamilyRivulinae
Wingspan (mm)20
Wing Patternspotted
Primary Colorstan, pale brown, dark brown
HabitatGrassy areas, fields, meadows, open woodlands, suburban gardens
Geographic RangeEastern North America, from Canada south to Florida and west to Texas and the Great Plains
Host Plantsgrasses
Flight PeriodApril to October (multiple broods)
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae are green with white stripes and feed on various grasses. They pupate in a cocoon among host plant leaves.
Identification TipsKey features for identification are its small size, pale coloration, and the two distinct dark discal spots on the forewings. Faint wavy lines may also be visible.

Description

A small, pale tan to light brown moth with two prominent dark brown spots on each forewing, often accompanied by faint, wavy transverse lines.

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