Dark Sword-Grass

Agrotis ipsilon

Dark Sword-Grass (Agrotis ipsilon)
Image: Wikipedia / Wikimedia Commons, CC BY-SA, wikipedia

Agrotis ipsilon, the dark sword-grass, ipsilon dart, black cutworm, greasy cutworm or floodplain cutworm, is a small noctuid moth found worldwide. The moth gets its scientific name from black markings on its forewings shaped like the letter "Y" or the Greek letter upsilon. The larvae are known as "cutworms" because they cut plants and other crops. The larvae are serious agricultural pests and feed on nearly all varieties of vegetables and many important grains. Source

Where is the Dark Sword-Grass now?

In the last 8 weeks it was recorded 25 times across 5 areas (each area is a 5 degree square).

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When does the Dark Sword-Grass arrive?

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
Europe28 September 202628 September 202626 October 20261

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Arriving at the same time in Europe

Every arrival in Europe, month by month

Related species

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