Symphytum officinale, Nieuwkerk NB
Symphytum officinale, Amstelveen, Schinkelbos: oviposition
A dozen eggs are deposited in a semicircle at the leaf underside. After hatching the larvae eat themselves a communual corridor. After the first moult they begin the making of a very large, dark brown communal blotch, with conspicuous secondary feeding lines.
Larvae between May and November in two generations (Hering, 1957a).
BE recorded (Scheirs, De Bruyn & von Tschirnhaus, 1996a).
NE recorded (van der Wulp, 1871a).
LUX not recorded (Fauna Europaea, 2007).
From the UK to Italy, and from Lithuania to France (Fauna Europaea, 2007).
The mines can be difficult to distinguish from those of the much more common A. abiens. In that species the eggs are deposited singly, albeit often several in a single leaf. The young larvae start by making a narrow corridor; after their first moult the begin making a blotch. Even though these blotches generally fuse to a common megablotch, mostly it is possible to recognise remnants of the individual initial corridors as the hallmark of abiens.
Described by van der Wulp from the Netherlands (dunes of the Hague and Rotterdam).
Beiger (1970a), Beuk (2002), Buhr (1932a), Černý, Barták & Roháček (2004a), Černý & Vála (1999a), Černý, Vála & Barták (2001a), van Frankenhuyzen Houtman & Kabos (1982a), Griffiths (1962a), Hering (1955b, 1957a, 1962a), Kabos (1971a), Maček (1999a), Martinez (1984a), de Meijere (1924a, 1939a), Nowakowski (1954a), Pakalniškis (1982b), Papp & Černý (2015a), Scheirs, De Bruyn & von Tschirnhaus (1996a), Skala & Zavřel (1945a), Spencer (1954a, 1972a), Starke (1942a), Starý (1930a), Süss (1982a), von Tschirnhaus (1999a), van der Wulp (1871a)