Caloptilia elongella
| Caloptilia elongella | |
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| Species: | C. elongella
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| Caloptilia elongella (Linnaeus, 1761)[1]
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Caloptilia elongella is a moth of the Gracillariidae family. It is known from all of Europe, east to eastern [[Russia. It is also found in North America, from British Columbia, south to California and east in the north to New Hampshire and New York.
The wingspan is 14-16 mm. There are two generations per year, with adults on wing in June and again during September, after which they hibernate and reappear in spring.[2]
The larvae feed on Alnus glutinosa, Alnus incana and Alnus minor. They mine the leaves of their host plant. The mine starts with a short gallery, that opens into (and is often overrun by) a silvery epidermal upper-surface blotch with light brown frass. Older mines contract and become en elongate blister or even a tube. Older larvae leave the mine and continue feeding within a downwards rolled leaf margin that is fastened with silk. Pupation takes place in a transparent, yellow-shining cocoon at the leaf margin.[3]
Referenced
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