Kessleria fasciapennella (Stainton, 1849)
Parnassia palustris, from Kyrki (1985a)
The young larva makes a long, irregular, sometimes widened gallery in one of the basal leaves. Later the larva live free in the hearth of the plant, where silk is deposited and where the larva lives in a white silken tube.
Larvae in June, July (Agassiz, 1996a).
Not known from the Benelux countries (Fauna Europaea, 2011).
Head brown; prothoracic plate and legs yellowish brown; anal plate light grey with a central reddish spot; light reddish grey, dorsally reddish brown (Kyrki, 1985a). Pictures of the free-living larva in Beavan ao (2016a).
Light brown, later blackish, in a white cocoon amongst litter. Kyrki (1985a) presents an illustration of the pupa.
distribution within Europe
From Fennoscandia to the Iberian peninsula, and from Britain to Poland (Fauna Europaea, 2011); boreomontane species, up to 2000 alt.
Agassiz (1996a), Baraniak, Hołowiński & Pałka (1999a), Beavan, Heckford, Prescott, Watson & Young (2016a), Bengtsson & Johansson (2011a), Huemer & Mutanen (2015a), Huemer & Tarmann (1991a), Kozlov & Kullberg (2010a), Kyrki (1985a).