Chirosia crassiseta Stein, 1908

on Pteridium

mine

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.

hostplants

Dennstaedtiaceae, monophagous

Pteridium aquilinum.

phenology

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

BENELUX

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).

larva

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.

notes

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

references

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

mod 14.x.2017