Southern Armyworm
Common NameSouthern Armyworm
Scientific NameSpodoptera eridania
FamilyNoctuidae
SubfamilyNoctuinae
Wingspan (mm)35
Wing Patterncryptic
Primary Colorsgrey, brown, white
HabitatAgricultural fields, gardens, disturbed areas, open woodlands
Geographic RangeSouthern United States, Central America, South America, Caribbean
Host Plantscotton, corn, tobacco, tomato, potato, beans, peanuts, alfalfa, citrus
Flight PeriodYear-round in tropical regions; multiple generations from spring to fall in temperate areas
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesUndergoes complete metamorphosis; eggs are laid in clusters, larvae (armyworms) are polyphagous agricultural pests known for their 'marching' behavior, pupation occurs in the soil, and adults are nocturnal moths.
Identification TipsAdults have a distinctive mottled forewing pattern with a pale streak along the costa and often a dark spot near the apex. Larvae are variable in color but typically have a dark lateral stripe and a pale stripe above it.
Description
A medium-sized moth with mottled grey, brown, and white forewings, featuring a cryptic pattern that helps it blend into its surroundings. The hindwings are typically plain white or light grey.
