Tansy Root Moth
Common NameTansy Root Moth
Scientific NameIsophrictis similiella
FamilyGelechiidae
SubfamilyGelechiinae
Wingspan (mm)12
Primary Colorsbrown, yellowish-gold, dark brown
HabitatOpen fields, disturbed areas, roadsides, gardens, areas with tansy
Geographic RangeNorth America (eastern and central US, parts of Canada)
Host PlantsTansy (Tanacetum vulgare)
Flight PeriodMay to August
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae bore into the roots or stems of tansy plants, where they feed and pupate. Adults emerge in late spring and summer.
Identification TipsKey features include its small size, the characteristic mottled brown and yellowish-gold forewing pattern, and its strong association with tansy plants. Microscopic examination may be required to distinguish it from similar species.
Description
A small, slender moth with mottled forewings displaying shades of brown and yellowish-gold, often with indistinct darker spots or streaks. Its head is somewhat shaggy, and antennae are simple.
