Heterarthrus ochropoda (Klug, 1818)
Populus x canadensis, Belgium, prov. Antwerp, Mol © Carina Van Steenwinkel
larva in the mine
Populus x canadensis, Belgium, prov. Limburg, Lommel, Wateringen © Carina Van Steenwinkel: cocoon with prepupa
Populus tremula © Rob Edmunds, UK
Populus nigra, Bloedbergduin, 17.vii.2019 © Jan Scheffers: larva in opened mine
Large, deep, upper-surface blotch that starts at the leaf margin, without an accumulation of frass. Around the oviposition site the leaf turns reddish brown. Frass in scattered grains, but towards the end of the larval period an opening is made in the mine, and both frass and exuvia are ejected. Against that time the mined leave is shed, and the larva makes a disk-shaped cocoon within the mine, in which it diapuases until the following spring.
Populus alba, x canadensis, x canescens, carolinensis, nigra, tremula.
Larven in May – July (Hering, 1957a).
BE recorded (Fauna Europaea, 2008).
NE recorded (van Ooststroom, 1976a); rare.
LUX recorded (Chevin, Ellis & Schneider, 2011a).
distribution within Europe
From Scandinavia and Finland to the Pyrenees, Italy and Romania, and from Britain to the Ukraine (Fauna Europaea, 2008).
Thoracic feet reduced to triangular stumps; see Lorenz & Kraus (1957a) and Arru (1963a) for more details.
Phyllotoma maxima (Strobl, 1896).
Large mines produce female wasps, lesser ones males (Arru, 1963a).
Altenhofer (2003a), Arru (1963a), Blank ao (1998a), Buhr (1933a, 1941a, 1964a), Calmarsur & Özbek (2004a), Chevin (1987a, 1998a), Chevin, Ellis & Schneider (2011a), Drăghia (1968a, 1971a, 1972a), Haase (1942a), Hering (1923a, 1957a), Liston (1995b. 2006a), Lorenz & Kraus (1957a), van Ooststroom (1976a), Pschorn-Walcher & Altenhofer (2000a), Robbins (1991a), Scobiola-Palade (1974a), Skala & Zavřel (1945a), Sønderup (1949a), Stammer (2016a), Taeger, Blank & Liston (2006a), Taeger ao (1998a), Tomov & Krusteva (2007a), Viramo (1969a), Wahlgren (1944a, 1993), Zoerner (1969a).