Plant Parasites of Europe

leafminers, galls and fungi

Caryocolum petrophila

Caryocolum petrophila (Preissecker, 1914)


Broad corridor, in one half of the leaf, running towards the leaf tip. Most frass is ejected; if this does not happen it forms a yellowish red mass in the centre of the corridor. The larva is remarkably active. Older larvae live free among spun shoot tips, causing window feeding, in the spun inflorescence, feeding on the flowers.

host plants

Caryophyllaceae, oligophagous

Cerastium arvense; Stellaria graminea.


Larvae in May – June (Hering, 1957a).


Not known from the Benelux countries (Fauna Europaea, 2010).

distribution within Europe

Fennoscandia, Alps.


Caryocolum petrophilum; Phthorimaea petrophila.


Aarvik, Karsholt, Larsen & Schnack (1988a), Elsner, Huemer & Tokár (1999a), Hering (1957a), Huemer (1988b), Huemer & Karsholt (2010a), Kaitila (1996a), Klimesch (1954a, 1958c), Skala (1950a), Szőcs (1977a).

Last modified 10.iv.2021