Plant Parasites of Europe

leafminers, galls and fungi

Chirosia crassiseta

Chirosia crassiseta Stein, 1908

on Pteridium


Mine in the lowest part of the petiole, not in the pinnulae-bearing part of the rachis. Often several larvae together. Mined leaves are stunted, often incompletely rolled out. Puparium in the mine or in the ground. See de Meijere (1911a) and Brown & McGavin (1982a) for details of the biology.


Dennstaedtiaceae, monophagous

Pteridium aquilinum.


Mijnes in June-July (de Meijere, 1911a).


BE not recorded (Fauna Europaea, 2007).

NE recorded (de Meijere, 1939a).

LUX not recorded (Fauna Europaea, 2007).

distribution within Europe

From Scandinavia to the Pyrenees, Italy and Greece, and from the UK to Poland (Fauna Europaea, 2007).


Larvae white, quite slender (de Meijere, 1911a). According to Hering (1957a) recognisable from the larva of Ch. albitarsis by having the upper rear arm of the cephalic skeleton undivided.


It cannot be excluded that the description by de Meijere (1911a) refers in part to the closely related albitarsis.


Beuk, Prijs & de Jong (2002a), Brown & McGavin (1982a), Hering (1957a), de Meijere (1911a), Roskam (2009a), Spooner & Bowdrey (2012a).

Last modified 14.x.2017