Ectoedemia heringella (Mariani, 1939)

new holm-oak pigmy

on Quercus

Ectoedemia heringella: mines on Quercus ilex

Quercus ilex, UK, Cambridgeshire, Ely © Rob Edmunds

Ectoedemia heringella: mines on Quercus ilex

another image

Ei op de bovenzijde van het blad, vaak bij een nerf. De mijn is een sterk gekronkeld gangetje, dat bijna geheel met zwarte frass is gevuld. Vaak een groot aantal mijnen in een blad.

mine

Egg at the upperside of the leaf, often near a vein. The mine is a strongly contorted gallery, almost entirely filled with black frass. Often many mines in a leaf.

host plants

Fagaceae, monophagous

Quercus alnifolia, x crenata, ilex.

In outbreak situations, but probably also under normal circumstances, also on Q. robur (van Nieukerken ao, 2010a).

phenology

Larvae from November till April (van Nieukerken, 1985a).

BENELUX

Not known from the Benelux countries (Fauna Europaea, 2009).

distribution within Europe

Mediterranean region from southern France, Corsica, Sardinia, and Italy to Cyprus; from 2002 on also in Britain.

synonyms

Stigmella heringella.

notes

Found by Martin Honey for the first time in Britain in 2002, in the gardens of Kensington Palace. Since then the species has rapidly expanded over the south of Britain, at the expense of the native Holm Oak. Some trees look browned from a distance (Prichard, 2005a). A road lined with monumental Holm Oaks in Kew Gardens is threatened by the feeding of heringella, in combination with Phyllonorycter messaniella en Stigmella suberivora (Times online, 2009).

The mines cannot be separated from those of E. haraldi and pseudoilicis.

references

Arenberger & Wimmer (1996a), Edmunds (2007a), Hering (1957a), Laštůvka & Laštuvka (1997a, 1998a), van Nieukerken (1985a, 1986a), van Nieukerken, Laštůvka & Laštůvka (2006a, 2010a), Pritchard (2005a), Sims (2008a), Skala (1939a), Triberti & Braggio (2011a).

mod 10.iii.2018