Populus tremula, Belgim, prov. Namur, Couvin, Frasnes-lez-Couvin, RN Tienne du Lion, 25.v.2016 © Stéphane Claerebout

the mine begins with a short gallery along the leaf margoin

the larva in its mine

Populus canescens, Nieuwendam; identification provisional

mine

Transparant blotch, starting at the leaf margin, quickly turning brown. Frass in scattered grains. Pupation outside the mine.

host plants

Salicaceae, monophagous

Populus alba, x canescens, nigra, tremula.

According to Liston & Späth (2004a) only records from P. tremula are trustworthy.

phenology

Larvae in May (Altenhofer, 1980b).

BENELUX

BE recorded (Fauna Europaea, 2008).

NE Not in van Ooststroom’s (1976a) checklist of Dutch sawflies; occupied mines have been found in Nieuwendam that may belong to this species.

LUX not recorded (Fauna Europaea, 2008).

distribution within Europe

From Sweden ad Finland to the Pyrenees, Italy and Slovenia, and from Britain to well into Russia (Fauna Europaea, 2008).

Pigmentation of the ventral region around the anal prolegs of the larva of Fenusella glaucopis (left) and F. hortulana (right); after Altenhofer (1980a).

larva

The pigmentation in front of the anal prolegs is weak and restricted.

synonyms

Fenusa, Messa glaucopis.

references

Altenhofer (1980a,b, 2003a), Balázs & Haris (2019a), Blank ao (1998a), Chevin (1987a, 1998a), Hering (1957a), Lengesova (2008a), Liston (1995b), Liston & Späth (2004a), Maček (1999a, 2012c), van Ooststroom (1976a), Pieronek (1962a), Pschorn-Walcher & Altenhofer (2000a), Robbins (1991a), Taeger, Blank & Liston (2006a), Taeger ao (1998a), Viramo (1969a), Zoerner (1969a).