Cataclysta lemnata (Linnaeus, 1758)
small china-mark
on Lemna, etc.

Azolla, Belgium, prov. Antwerp, Geel, 20,x,2024 © Thomas.Gyselinck: larva

another image

Waterleidingduinen, 24.vii.2013 © Laurens van der Linde
mine
Some of the newly hatched larvae mine for some days a duckweed lentil; the other live free. Soon they start making a case out of remnants of duckweed on which they feed, resembling the cases of caddisflies.
host plants
poluphagous
Occasionally Stratiotes aloides
phenology
Univoltine. Larvae from October till May (Hering, 1957a).
BENELUX
BE recorded (Phegea, 2010).
NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2010).
LUX recorded (Fauna Europaea, 2010).
distribution within Europe
Practically all Europe (Fauna Europaea, 2010).
larva
Greyish brown to brownish black; head light brown. See also Schmid, Vallenduuk & Cuppen.
pupa
Within the larval case. See Patočka, Patočka & Turčáni for a description.
references
Adolph, Kortstock, Niehoff & Schweitzer (2019a), Grabe (1955a), Hering (1957a), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Patočka (2001c), Patočka & Turčáni (2005a), Rinnhofer (1988a), Ritt & Lichtmannecker (2019a), Robbins (1991a), Schmid (2019a), Smolders & van der Velde (1996a), Sønderup (1949a), Triberti, Longo Turri, Adami & Zanetti (2017a), Vallenduuk & Cuppen (2004a), Vallenduuk, Cuppen & van der Velde (1997a).