Yellowstriped Armyworm

Spodoptera ornithogalli

Yellowstriped Armyworm (Spodoptera ornithogalli)
Image: Wikipedia / Wikimedia Commons, CC BY-SA, wikipedia

Spodoptera ornithogalli is a moth of the family Noctuidae. Source

Where it is now

In the last 8 weeks this insect was recorded 11 times across 3 areas (each area is a 5 degree square).

See the Yellowstriped Armyworm on the live map

Arrival dates

The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.

RegionFirst arrivalLast arrivalTypical peakAreas
North America20 April 202620 April 202615 June 20261

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Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.