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CROW (Conserve Reading on Wednesdays)
Wednesday, 23rd July 2008
Hosehill Lake, Theale ~ Path clearance

The six-spot, Zygaena filipendulae, is the commonest of the seven species of burnet moth found in Britain. When attacked the day flying burnet moth excludes a poisonous fluid containing hydrogen cyanide (prussic acid), the poison is acquired during the caterpillar stage from the trefoil and vetch on which the caterpillar feeds.