Coleophora taeniipennella Herrich-Schäffer, 1855
small rush case-bearer
on Juncus
UK, North Wales © Janet Graham, ex Wikipedia
parasite
The young larva lives in a fruitlet and eats the seeds. Only in its third instar a case is formed, and the larva starts emptying the fruits from the outside. The case is a pale buff silken tube, 5 mm long, trivalved, with a mouth angle of 20°, enclosed in the remnants of a Juncus flower.
host plants
Juncaceae, monophagous
Juncus acutiflorus, articulatus, bulbosus, effusus, gerardi, inflexus, squarrosus, subnodulosus.
Mainly J. articulatus & acutiflorus.
phenology
Larvae from August till November. The full fed larva generally leaves to host plant to hibernate elsewhere. Pupation in the following spring, still in the case.
distribution within Europe
All Europe (PESI, 2018).
BENELUX
Known from the Netherlands and Belgium.
synonyms
Coleophora galactaula Meyrick, 1928.
references
Baldizzone (1979a, 1990b, 2004a, 2020a), Baldizzone & Hartig (1978a), Baldizzone & scalercio (2018a), Baldizzone, Tokár, Kovács & Kovács (2004a), Biesenbaum (2001b), Biesenbaum & van der Wolf (1999a), Emmet (1986e), Emmet, Langmaid, Bland ao (1996a), Huemer (2001a), Huemer & Wiesner (1997a), Huisman, Koster, van Nieukerken & Ulenberg (2003a, 2005a), Ivinskis & Savenkov (1991a), Kaltenbach & Roesler (1985a), Kasy (1965a), Michaelis (1983a), Nel (1992b), Patzak (1974a,b), Robbins (1991a), Segerer, Neumayr, Pröse & Kolbeck (1994a), Steeman & Sierens (2018a), Triberti, Longo Turri, Adami & Zanetti (2017a), Wegner (2010a).