Army Cutworm Moth
Common NameArmy Cutworm Moth
Scientific NameEuxoa auxiliaris
FamilyNoctuidae
SubfamilyNoctuinae
Wingspan (mm)40
Wing Patterncryptic
Primary Colorsbrown, grey, tan
HabitatOpen grasslands, prairies, agricultural fields, rangelands, disturbed areas
Geographic RangeWestern and Central North America, from southern Canada to Mexico
Host Plantsalfalfa, wheat, barley, corn, various vegetables, weeds
Flight PeriodApril to October (with regional variations and migrations)
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae, known as 'army cutworms,' are nocturnal feeders that hide in the soil during the day and can cause significant damage to crops. They overwinter as larvae, often migrating in large groups to new feeding grounds.
Identification TipsKey features include the mottled brown and grey forewings with distinct, dark-outlined reniform and orbicular spots. The overall cryptic pattern is characteristic, and the hindwings are typically plain and lighter in color.
Description
This moth displays a robust, hairy body and forewings with a complex, mottled pattern of browns, grays, and tans, featuring prominent dark reniform and orbicular spots. Its cryptic coloration allows it to blend seamlessly with its environment.
