Liriomyza pusio (Meigen, 1830)

mine

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

hostplants

Poaceae, monophagous

Arrhenatherum elatius.

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

phenology

Larvae in October (Hering, 1957a).

BENELUX

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).

larva

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.

puparium

Brown.

synonyms

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).

notes

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.

references

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).

mod 10.iii.2018