Plant Parasites of Europe

leafminers, galls and fungi

Acaricalus trinotus

Acaricalus trinotus (Nalepa, 1892)

on Alnus

Acaricalus trinotus gall

Alnus glutinosa, Cadzand © Arnold Grosscurt

 Acaricalus trinotus gall

Alnus glutinosa, Dronten: underside of the leaf; © Arnold Grosscurt


Betulaceae, monophagous

Alnus glutinosa, incana.


Acaphylla, Epitrimerus, trinotus.


These symptoms can be caused by several species of gall midges that, possibly only facultatively, and maybe only in combination with others induce gall formation. See also Epitrimerus longitarsus, Tegonotus heptacanthus and T. trouessarti.


Buhr (1964b), Houard (1908a), Jočić & Petanović (2012a), Máca (2012a), Ripka (2007a), Roivainen (1951a, 1953a), Roskam (2009a), Skoracka, Lewandowski & Boczek (2005a), Tomasi (2014a), Vaněčková-Skuhravá (1996a).

Last modified 27.ii.2020