Seq # 362800020

Zeiraphera isertana (Fabricius, 1794) Species

Last modified: Dec. 12, 2023, 1:14 p.m.

A common species throughout Belgium.


Family: Tortricidae > Subfamily: Olethreutinae > Tribus: Eucosmini > Genus: Zeiraphera > Species: Zeiraphera isertana
Vernacular names
Grootkopbladroller (NL), Mottled Oak Tortrix, Cock's-head Bell (EN), Eichen-Triebwickler (DE)
Zeiraphera corticana sensu Hübner, 1813
First mention in Belgium
De Sélys-Longchamps E. 1844. Énumération des insectes Lépidoptères de la Belgique. — Mémoires de la Société royale des Sciences de Liége 2: 1–35. On page 22.




Wingspan 14–19 mm. The species is very variable in coloration and here is often a greenish or olive tinge to some of the markings. Well-marked specimens of Z.isertana may be distinguished by the comparatively small and usually trapezoidal blotch of (pale) ground colour on the dorsum of the forewing, but it can be obscured too.

Museum specimens

Specimens in nature



The larva lives between spun leaves or a folded leaf. Sometimes found also in galls of Cynips sp. It pupates in the larval habitation or spun up in a crevice in the bark.
They are active from late afternoon onwards and come to light.

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Flight periods

The adults have been observed from early June till mid-September, occasionally later. Most observations during June/July.

Observed on

Host plant (genera):

The larva lives on Quercus robur and Quercus sp.

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It inhabits oak woodland.

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