UK moth numbers suffer crash, 40-year study shows

http://www.bbc.co.uk/news/science-environment-21246322

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Moths are considered to be important indicators of biodiversity health

Two-thirds of Britain's 337 species of common larger moths have experienced a substantial decline over the past four decades, a survey has shown.

The V-moth (Marcaria wauaria), once a common sight in gardens, recorded a 99% fall in numbers from 1968-2007.

Habitat loss and deteriorating land are thought to be behind the decline.

The findings appear in the State of Britain's Larger Moths 2013 report, produced by Butterfly Conservation and Rothamsted Research.