Columbian Trig

Cyrtoxipha columbiana

Cyrtoxipha columbiana, the Columbian trig, is a species of cricket in the family Trigonidiidae. It is endemic to most of the southeastern United States, up to New Jersey, although sightings are also reported from further north, including New York and Massachusetts. Source

Where it is now

In the last 8 weeks this insect was recorded 33,287 times across 11 areas (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 North America ranged from 28°N in June to 41°N in October, about 1,500 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.