Plant Parasites of Europe

leafminers, galls and fungi

Tachyerges decoratus

Tachyerges decoratus (Germar, 1821)


Full depth, transparent, brown, gallery running along the leaf margin over the leaf tip, then considerably widening. The mine ends in a round excision.


Salicaceae, oligophagous

Populus nigra; Salix fragilis, pentandra, purpurea, triandra.

In Britain only on Salix purpurea (Morris, 1993a).


Larvae in May-June and August (Hering, 1957a). That agrees well with Augustin (1998a) who writes that weevils occur in April and July-August. However, Scherf (1964a) states that there is but one generation per year.


BE recorded (, 2010).

NE observed (Heijerman, 1993a).

LUX not recorded (Fauna Europaea, 2010).

distribution within Europe

From the UK to Bulgaria and from Poland to Italy (Fauna Europaea).


Rhynchaenus decoratus.


Buhr (1933a), Caillol (1954a), Heijerman (1993a), Hering (1930a, 1957a), Morris (1993a), Podlussány (2007a) , Rheinheimer & Hassler (2010a), Roques (1998a), Scherf (1964a), Vorst (2010a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).

Last modified 13.xi.2023