Photo © David Foot

Dusky Scalloped Oak

Crocallis dardoinaria

Checklist Number
70.242 [B&F: 1921a]

Verification
Record will require further evidence, at least a good photograph, unless CMR is aware recorder has confidence in identification

Classification

Family:Geometridae
Subfamily:Ennominae
Genus:Crocallis
Species:dardoinaria
Authority:Donzel, 1840

Local on the coast of Guernsey, where first discovered in 1990. Recorded for the first time in mainland Britain at Exmouth, Devon, in September 2006, and another was caught in Dorset in August 2009. Not recorded in Hampshire or on the Isle of Wight to date. Wingspan 46-52 mm. The most likely confusion species is Scalloped Oak C. elinguaria, but C. dardoinaria is darker and has a discal spot comprising four small dots. Larva feeds on Gorse and Broom.