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LUZULA. Wood-rushes. [Juncaceae]

Ten species of Luzula are recorded in Britain. These include the native Curved Wood-rush (L. arcuata), Field Wood-rush (L. campestris), Southern Wood-rush (L. forsteri), Heath Wood-rush (L. multiflora), Fen Wood-rush (L. pallidula), Hairy Wood-rush (L. pilosa), Spiked Wood-rush (L. spicata) and Great Wood-rush (L. sylvatica) and the introduced White Wood-rush (L. luzuloides) and Snow-white Wood-rush (L. nivea). Four dipterous miners, the agromyzids Cerodontha bimaculata, Cerodontha luzulae, Cerodontha silvatica and Chromatomyia luzulae, are recorded on Luzula in Britain. Elsewhere the agromyzids Cerodontha luzulae and Cerodontha silvatica are recorded mining Luzula. Four non-dipterous miners are recorded on Luzula in Britain (see below). Elsewhere two additional British non-dipterous miners are recorded on Luzula (see below).

Key for the identification of the known Diptera mines in Britain.

1> Mine beginning on lower surface but main section on upper surface, brownish; mine long, linear. Pupation in mine at base of leaf. Puparium yellowish Chromatomyia luzulae (Hering) [Agromyzidae]. -> Long, rather narrow mine, upper surface or interparenchymal. The mine changes direction at least twice (upper - lower or v.v.). The mine frequently finishes in the leaf sheath. Frass in one or two large clumps. Cerodontha (Dizygomyza) silvatica (Groschke) [Agromyzidae]. -> Long, rather narrow corridor, upper-surface or interparenchymatous mine. The mine changes direction one or two times. Often the corridor ends in the leaf sheat. Frass in one or two large lumps. Puparium in the lower part of the mine. Hibernation in the pupal state. Cerodontha (Dizygomyza) bimaculata (Meigen) [Agromyzidae]. -> Larva forming irregular linear mine Mine of Cerodontha luzulae on Luzula sylvatica. Image: Willem Ellis (Source: Nederlandse bladmineerders) Cerodontha (Dizygomyza) luzulae (Groschke) [Diptera: Agromyzidae]

Non-dipterous miners recorded on Luzula in Britain Elachista gleichenella (Fabricius, 1781) Lepidoptera: Elachistidae     Elachista regificella Sircom, 1849 Lepidoptera: Elachistidae   Elachista tengstromi Kalia, Bengstsson, Sulcs & Junnilainen, 2001 Lepidoptera: Elachistidae     Elachista trapeziella Stainton, 1849 Lepidoptera: Elachistidae     Additional British non-dipterous miners recorded on Luzula elsewhere Elachista albifrontella (Hübner, 1817) Lepidoptera: Elachistidae Elachista apicipunctella Stainton, 1849 Lepidoptera: Elachistidae

Last updated 10-Sep-2008  Brian Pitkin