Minute Ragweed Borer
Common NameMinute Ragweed Borer
Scientific NameEpiblema strenuana
FamilyTortricidae
SubfamilyOlethreutinae
Wingspan (mm)15
Wing Patterncryptic
Primary Colorsgray, brown, white
HabitatFields, disturbed areas, roadsides, gardens, anywhere ragweed grows
Geographic RangeNorth America (Canada to Mexico)
Host PlantsAmbrosia artemisiifolia, Ambrosia trifida, Helianthus, Xanthium
Flight PeriodApril to October (multiple generations)
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae bore into the stems and roots of host plants, forming galls or tunnels. Pupation typically occurs within the stem or in the soil, with multiple generations per year.
Identification TipsLook for its small size, the characteristic mottled gray-brown forewing pattern with a pale costal patch, and its strong association with ragweed plants.
Description
A small, slender moth with mottled gray-brown forewings, often featuring a pale patch near the costa and darker markings, providing excellent camouflage.
