- Subfamily: Olethreutinae, Grapholitini
- Wingspan: 16-20 mm
- Flight period: Jun - Jul
- Spread: Common
- Host plants: Fagaceae, Betulaceae, Juglandaceae
The Cydia amplana also called Rusty Oak Moth is a moth of the Tortricidae family with a wingspan of 16-20 mm.
It is widespread in most of Europe, it is absent from Ireland, Croatia, Finland and the Baltic countries *.
Its range extends to Asia Minor, south-western Russia and the Trans-Caucasian area.
In Italy it is also present in the islands *.
The front wings of the Cydia amplana have a yellowish-gray and ferruginous color with ocher and blackish basal scales. A pale ocher dorsal spot is clearly visible. It has very short rib streaks, and white or ocher cavities.
The ocellus is indistinct with three or four black dashes, its outer edge is leaden. **
The rear wings are dark gray. All the wings are fringed, the front in brown and light brown, the posterior ones in gray with brown / pink shades near the apex. **
This species often takes two years to develop. Moths fly in June and July. The larvae can be found in September and October. It pupates in a cocoon in the soil.
Cydia amplana larvae usually feed only inside fruits that have fallen to the ground, but sometimes the larvae also cause significant damage to fruits on the tree. ***
The larva is whitish gray or brown dorsally small head, heart-shaped, bright honey brown. In the last stages it may have a reddish or pinkish color. **
The chrysalis is ocher yellow with light brown shades. **
The host plants are: Corylus sp. (hazel), Juglans sp. (walnut), Castanea sp. (chestnut), Fagus sp. (beech) and Quercus sp. (oak).
* Lepidoptera mundi https://lepidoptera.eu/ - Fauna Europea https://fauna-eu.org/
** Bestimmungshilfe für die in Europa nachgewiesenen Schmetterlingsarten - http://lepiforum.de/
*** Drekić, M. e V. Vasić. 2012. - https://agris.fao.org/agris-search/search.do?recordID=RS2017000089