Aster-head Eucosma Moth
Common NameAster-head Eucosma Moth
Scientific NameEucosma asterana
FamilyTortricidae
SubfamilyOlethreutinae
Wingspan (mm)14
Wing Patterncryptic
Primary Colorsgrey, brown, black
HabitatOpen woodlands, fields, disturbed areas where host plants grow
Geographic RangeEastern and central North America, from Quebec and Ontario south to Florida and west to Texas and Manitoba
Host PlantsSymphyotrichum novae-angliae, Symphyotrichum laeve, other Aster species
Flight PeriodJuly to September
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae bore into the flower heads and stems of various Aster species, feeding internally. Pupation typically occurs within the host plant or in the soil.
Identification TipsLook for the distinctive dark, somewhat triangular dorsal patch on the forewings when the moth is at rest, combined with its small size and mottled grey-brown coloration. Often found in areas with its Aster host plants.
Description
A small, cryptically colored moth with mottled grey-brown forewings featuring a prominent, irregular dark brown to black patch on the dorsal side when at rest, and subtle wavy lines.
