Plant Parasites of Europe

leafminers, galls and fungi

Temnocerus nanus

Temnocerus nanus (Paykull, 1792)

on Alnus, Betula, Salix


The adults perform window feeding at th underside the young leaves. Oviposition, usually one egg, in an egg chamber in a terminal leaf bud, that is closed with a wad. The top of the shoot then is partly cut off, providing the larva with the withering top of the shoot as food.

host plants

Betulaceae, Salicaceae, restricted polyphagous

Alnus; Betula; Salix caprea, cinerea, repens, viminalis.


Hibernation as mature larva in the soil.

distribution within Europe

(PESI, 2019).


Pselaphorhynchites nanus.


Alonso Zarazaga (1983a), Dieckmann(1974a), Reinheimer & Hassler (2010a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).

Last modified 5.x.2020