| Ancylis discigerana | |
|---|---|
 | |
| Adult | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Tortricidae |
| Genus: | Ancylis |
| Species: | A. discigerana |
| Binomial name | |
| Ancylis discigerana | |
| Synonyms | |
| |
Ancylis discigerana, the birch leaffolder or yellow birch leaffolder moth, is a moth of the family Tortricidae. It is found in north-eastern North America.[2]
The wingspan is 13–14 mm. There is one generation per year.[3]
The larvae feed on Betula alleghaniensis. The first two instars skeletonise the lower surface of a leaf of their host plant. They feed from beneath a sheet of silk that is constructed between two lateral veins. Third instar larvae move to the upper surface of a different leaf and fold it lengthwise. They then feed on the upper epidermis within the fold until the leaf falls down.
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