Plant Parasites of Europe

leafminers, galls and fungi

Coleophora glaucicolella

Coleophora glaucicolella Wood, 1892

grey rush case-bearer

on Juncus


The young larva lives within a fruit, consuming the seeds. Only in its second instar it starts constructing a tubular silken case, gradually increasing in length. The final is is pale buff to greyish, 5-6 mm long, with a mouth angle of 0°-10°.

host plants

Juncaceae, monophagous

Juncus acutus, articulatus, conglomeratus, effusus, gerardi, inflexus, maritimus, subulatus.

A reference to Juncus bufonius by Zimmermann & Skala possibly applies to Coleophora lassella.

Larvae that still need to feed after hibernation are sometimes found on Luzula multiflora.


Larvae from September; hibernation as (generally full-fed) larva; pupation in June-July,
still in the case.

distribution within Europe

Entire Europe.


Cases and larvae are indistinguishable from those of C. alticolella. However, as appears from the list of host plants, more a species of saline habitats.


Aguiar & Karsholt (2006a), Baldizzone (1979a, 1983c, 1984a, 1990b, 2020a), Baldizzone, Tokár, Kovács & Kovács (2004a), Baldizzone & van der Wolf (2000a), Biesenbaum & van der Wolf (1999a), Emmet, Langmaid, Bland ao (1996a), Huemer (2012a), Huertas Dionisio (2007a), Ivinskis & Savenkov (1991a), Jansen & Asselbergs (1993a), Kaltenbach & Roesler (1985a), Kasy (1965a), Michaelis (1983a), Nel (1992b), Patzak (1974a,b), De Prins & Steeman (2011a), Rickert (2010a, 2011a), Robbins (1991a), Wood (1892a), Zimmermann & Skala (1946a).

Last modified 7.i.2023