Greater Angle-wing

Microcentrum rhombifolium

Microcentrum rhombifolium is a species of insect in the family Tettigoniidae. Common names include greater angle-wing katydid, broad-winged katydid, and angular-winged katydid. They live across North America in trees and shrubs. Adults are active in late summer and autumn and have a "ticking" call. They have been reported to chew on the peels of citrus crops, resulting in minor damage. Source

Where it is now

In the last 8 weeks this insect was recorded 10,739 times across 17 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 29°C (typically 27 to 32°C, from 6 areas). That holds across 15° of latitude, which suggests its timing follows temperature more than the calendar.

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.