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Grey Dagger Acronicta psi Length 23mm. An aptly-named moth that rests with wings held in shallow tent-like manner. Adult has pale grey forewings with a slightly powdery look and striking black dagger-like markings. Flies June–August. Larva has a dark lateral band containing red spots on each segment, bordered above and below by a yellowish bands; note the prominent tuft of hairs. Larva feeds on deciduous shrubs and trees. Widespread and common. Similar species Dark Dagger A. tridens is virtually indistinguishable as an adult; larva is very different, with orange-yellow bands bordering a black lateral band containing white spots.
- © PAUL STERRY/Nature Photographers
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