283 Red Birch Slender Caloptilia betulicola ABH 15.005

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Family Gracillariidae » Gracillariinae

Wingspan c.14-16 mm.

Flight Period There are two generations, flying in June and July, and then in September and October. The second brood overwinters as an adult and often reappears in the early spring.

Description Very similar to C. elongella, both species being quite variable. It is possible to identify either species from the foodplant if the moth is reared from the larva, but adults located in mixed habitat should be treated with more caution and may need to be dissected.

Caution Similars C. elongella

 

Foodplant: As implied by the name, the foodplant of the present species is birch (Betula), the larva mining the leaves initially and then living inside a rolled leaf in later instars.

Habitat

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