Caloptilia roscipennella (Hübner, 1796) Species
Last modified: Sept. 14, 2023, 12:59 p.m.
A rare species in Belgium, with the bulk of observations in Flanders.
Details
- Classification
- Family: Gracillariidae > Subfamily: Gracillariinae > Tribus: Gracillariini > Genus: Caloptilia > Species: Caloptilia roscipennella
- Vernacular names
- Walnootsteltmot (NL)
- Synonyms
- Caloptilia roscipennella sensu auct.
- First mention in Belgium
- De Fré Ch. 1858. Catalogue des Microlépidoptères de la Belgique. — Annales de la Société entomologique belge 2: 45–162. On page 146. view page
- Status
-
Native
Distribution
Imago
Forewings ochreous, sometimes with a rosy tinge, some scattered dark brown dots on costa and inner margin. Some specimens have a greyish ground colour.
Museum specimens
No pictures yet!Specimens in nature
No pictures yet!Caterpillar
Licht green.
Mine
The first instars live in a rather long serpentine mine on either side of the leaf. This gallery leads to a small and narrow blotch at the edge of the leaf. Later instars bend the leaf to the underside and feed from within that cone.
See also gracillariidae.net and bladmineerders.be.
Cocoon/pupa
No real cocoon, just a silken membrane.
Bionomics
Pupation under a silk membrane in a conical roll at the edge of a leaf. The adults hibernate.
Flight periods
One generation per year: August, after hibernation till May.
