Plant Parasites of Europe

leafminers, galls and fungi

Oscinella frit

Oscinella frit (Linnaeus, 1758)

frit fly

on grasses


Stem borer; infested parts somewhat swollen. One or more larvae together, bone coloured, maggots, up to 4 mm in size. Pupation internal. Hibernation in an underground runner.

host plants

Poaceae, oligophagous

Agropyron cristatum; Agrostis capillaris, stolonifera; Alopecurus myosuroides, pratensis; Anisantha sterilis; Anthoxanthum odoratum; Arrhenatherum elatius; Avena fatua, sativa; Deschampsia cespitosa; Elytrigia repens; Festuca rubra; Holcus; Hordeum murinum; Lolium multiflorum, perenne; Ochlopoa annua; Poa pratensis, trivialis; Schedonorus arundinaceus, pratensis; Secale cereale, sylvestre; Trisetum flavescens; Triticum turgidum subsp. durum; Zea mays.


Oscinis frit.


More species belong to the genus Oscinella, all with a comparable biology. Without rearing a definite identification is not possible.


Brunberg Nielsen (1994a), Brunberg Nielsen & Overgaard Nielsen (1984a), Buhr (1964b, 1965a), Houard (1908a), Ismay (0000a), Nartshuk (2011b), Nartshuk & Andersson (2012a), Nartshuk, Khruleva & Barkalov (2014a), Nartshuk & Pakalni┼íkis (2004a), Nartshuk & Panteleeva (2017a), Nartshuk, Polevoi & Przhiboro (2020a), Roskam (2009a, 2019a), Spooner & Bowdrey (2012a), Wetzel, Skuhrav├Ż, Camprag, ao (1984a).

Last modified 5.viii.2021