Plant Parasites of Europe

leafminers, galls and fungi

Orchestes alni

Orchestes alni (Linnaeus, 1758)

Orchestes alni: occupied mine on Ulmus minor

Ulmus minor, SBB = Biddinghuizen, Spijk- en Bremerbergbos © Hans Jonkman

Orchestes alni: occupied mine on Ulmus minor



Ulmus glabra, Duin en Kruidberg


Ulmus minor, Duin en Kruidberg: mine with cocoon

Orchestes alni mine

Ulmus minor, Castricum; generally, the blotch section is situated in the leaf tip, but this isn’t a fixed rule


Oviposition in the underside of the midrib; here an extensive scar remains visible. Form this point a full depth corridor runs towards the leaf tip, where it widens to a blotch. The apodous larva eventually pupates in a globular cocoon, made inside the mine. Because the mine is made at a time the leaf still is unfolding, the leaf can be strongly disfigured.

host plants

Ulmaceae, monophagous

Ulmus glabra, laevis, minor.

Preference for U. minor (Rheinheimer & Hassler, 2010a).

The reference to Quercus pubescens by Blanes-Dalmau ao is a mistake.


Larvae in May-June (Scherf, 1964a). Adults emerge in June (Rheinheimer & Hassler, 2010a).


BE recorded (

NE recorded (Heijerman, 1993a).

LUX not recorded (Fauna Europaea (2007).

distribution within Europe

From the British Isles to Italy and from Poland to Moldova (Fauna Europaea, 2007).




Rhynchaenus alni; Orchestes, Rhynchaenus saltator (Geoffroy, 1785).

parasitoids, predators

Cirrospilus pictus; Pnigalio agraules; Tetrastichus leocrates, miser.


Rather common.


Amsel & Hering (1933a), Beiger (1979a), Blanes-Dalmau, Caballero-López & Pujade-Villar (2017a), Buhr (1933a), Caillol (1954a), Delbol (2013a), Douglas, Bouchard, Anderson ao (2013a), van Frankenhuyzen & Houtman (1972a), van Frankenhuyzen Houtman & Kabos (1982a), Heijerman (1993a), Hering (1924a, 1930a,e, 1931a, 1957a), Kleine (1924/25a), Kollár (2007a), Kollár & Hrubík (2009a), Maček (1999a), le Monnier (2003a), Rheinheimer & Hassler (2010a), Robbins (1991a), Scherf (1964a), Skala (1936a), Stammer (2016a), Ureche (2010a), Utech (1962a), Vorst (2010a), Winkelmann & Bayer (2004a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a), Zoerner (1969a).

Last modified 15.iv.2023