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70.018 (BF1715)

Plain Wave   

Idaea straminata
Adult: 2
Resident. Scarce.

Red List: Least Concern (LC). GB Status: Common.

Identification

Usually distinctive. Care required, potential confusion with the unbanded form of  Riband Wave. The third crossline on the forewing is not kinked at the leading edge as it is on Riband Wave.

Recording Method

Attracted to light.

Life cycle

One generation. Overwinters as a larva.  Larvae August to May. Pupates among plant debris.

Larval foodplants

Larval foodplant not known in the wild.

Habitat

Mainly open woodland and scrubby heathland.

History

First recorded in Dumfries and Galloway in VC72 in 1862 on the Tinwald Downs, Dumfries by Lennon who said it was ‘very rare’.  The first record for VC74 was not until 1983 from Clayshant, Torrs Warren in 1983 by Duncan and for VC73 in 1990 at Mabie Forest in the Rothamsted moth trap.

40 record(s) from 15 hectad(s) in D&G

VC74 VC73 VC72
Last recorded 1983 2022 2022

 UK Moths website - further information on species (with photos)

 East Scotland Butterfly Conservation website - national distribution maps and phenology

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