Plant Parasites of Europe

leafminers, galls and fungi

Liriomyza pusio

Liriomyza pusio (Meigen, 1830)


Upper-surface, unusually short corridor (ca. 4 cm). Sometimes several mines in a leaf (Robbins, 1991a). Pupation outside the mine.


Poaceae, monophagous

Arrhenatherum elatius.

According to Scheirs, De Bruyn & Verdyck this is the only hostplant, but Robbins (1991a) additionally mentions Agrostis.


Larvae in October (Hering, 1957a).


BE recorded (Scheirs, De Bruyn & Verdyck, 1993a).

NE recorded (de Meijere, 1924a, al L. graminicola n.sp.).

LUX not recorded (Fauna Europaea, 2008).

distribution within Europe

From Finland to the Pyrenees and Italy, and from Ireland to Poland and Hungary (Fauna Europaea, 2008).


Described by de Meijere (1924a, as graminicola). Front spiraculum with 10 papillae. Rear spiraculum with 8-9 (de Meijere) or 5-7 (Hering, 1957a) papillae.




Liriomyza graminicola de Meijere, 1924; L. breviseta Frey, 1946.

Until the type material was studied by Spencer (1971a), there was much confusion around the name L. pusio. Hendel (1920) believed it to be a synomym of L. congesta; this explains why de Meijere (1924a) listed L. pusio from the Netherlands with Pisum as a hostplant, and recorded pusio as a variety of L. congesta in his checklist of 1939. Later Hendel (1931-1936) incorrectly connected pusio with L. tragopogonis, which still confused Hering (1954a, 1957a).


Hering (1957a) discriminates between L. graminivora and pusio because the first one would mine from the base of the leaf towards the tip, while pusio would work top-down. This has been refuted by Griffiths (1962a): both directions are equally common in pusio.


Andersen (2016a), Beiger (1958a), Beuk (2002a), Bland (2001a), Černý (2001a), Černý & Vála (1996a, 1999a), Černý, Vála & Barták (2001a), Griffiths (1962a, 1963b), Hering (1927a, 1954a, 1957a), Huber (1969a), Kabos (1971a), Manning (1956a), Martinez (1984a), de Meijere (1924a, 1939a), Pakalniškis (1990a), Papp & Černý (2018a), Robbins (1991a), Scheirs, De Bruyn & von Tschirnhaus (1995a), Scheirs, De Bruyn & Verdyck (1993a), Skala & Zavřel (1945a), Sønderup (1949a), Spencer (1954a, 1972a, 1976a), Starý (1930a), Süss (1982a), von Tschirnhaus (1999a).

Last modified 10.iii.2018