Food Plant: Alnus glutinosa (alder)

Mine: probably from September (early feeding not recorded) to November, feeding again from late May to June or July. There is also a biennial population, which aestivates and completes feeding in June or July of the second year.

Notes: The final case is 11-13mm long, slender, and fixed at 45° to the leaf surface, with anal end laterally compressed and bivalved. The final case (12mm long) is shown here.

National Status: Nationally Scarce B

Bradley No: 498

Data: 21.v.2005, Fleet, Hants,VC12

Image:© Rob Edmunds