Gypsy Moth

Lymantria dispar

Lymantria dispar, also known as the gypsy moth, and in the United States, the spongy moth, is a species of moth in the family Erebidae native to Europe and Asia. Lymantria dispar is subdivided into several subspecies, with subspecies such as L. d. dispar and L. d. japonica being clearly identifiable without ambiguity. Lymantria dispar has been introduced to several continents and is now additionally found as an invasive species in Africa, North America and South America. The polyphagous larvae live on a variety of deciduous and coniferous trees and can cause severe damage in years of mass reproduction. Due to these features, Lymantria dispar is listed among the world's 100 worst invasive alien species. Source

Where it is now

In the last 8 weeks this insect was recorded 7 times across 1 area (each area is a 5 degree square).

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Movement and weather

Over the weeks it was present in the past year, its centre in Europe ranged from 43°N in June to 52°N in June, about 1,000 km apart.

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.

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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.