Fauna
Insect

Variegated Cutworm Moth

Peridroma saucia

Also known as Pearly Underwing, Variegated Cutworm

Variegated cutworm moths are robust nocturnal migrants capable of traveling hundreds of kilometers on high-altitude winds to colonize northern fields each spring. The larvae feed voraciously at night on dozens of crop varieties, slicing tender young seedlings at the soil level before retreating underground by daybreak. Their semi-translucent, mother-of-pearl hindwings remain concealed beneath mottled brown forewings until the moth takes flight.

NocturnalMigratoryHerbivorous
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & preyTomato foliage, Alfalfa, Clover
Predators
  • Insectivorous bats
  • Ground beetles
  • Parasitoid wasps
ThreatsAgricultural insecticides, severe frosts, and light pollution
HabitatsCultivated fields, vegetable gardens, open meadows, and pastures
Life span4–8 weeks total (adult stage lasts 1–3 weeks)
  1. OrderLepidoptera
  2. FamilyNoctuidae
  3. GenusPeridroma
  4. SpeciesPeridroma saucia
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Light Trapping: Attract adult moths after dark using a white sheet illuminated with an ultraviolet lamp.
  • Garden Inspection: Search beneath the soil surface near severed vegetable seedlings at dusk to find larvae.
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Found in Collections

Species set

Moonlight Marvels

Variegated Cutworm Moth is found in this collection. Identify it in Fauna to fill this slot and continue your progress.

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