Snowy Tree Cricket

Oecanthus fultoni

Oecanthus fultoni, also known as the snowy tree cricket, or thermometer cricket, is a species of tree cricket from North America. It feeds on leaves but also damages fruit. The chirp of this species is often dubbed onto sound tracks of films and television shows to depict a quiet summer's night. The rate of chirp varies depending on the heat of the environment, allowing a listener to estimate the temperature. Source

Where it is now

In the last 8 weeks this insect was recorded 62,867 times across 20 areas (each area is a 5 degree square).

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Movement and weather

Each season it is first heard regularly where daytime highs are around 23°C (typically 19 to 27°C, from 7 areas).

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.