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TRIGLOCHIN. Marsh Arrow-grass. [Juncaginaceae]

Two species of Triglochin are recorded in Britain, the native Sea Arrowgrass (T. maritimum) and Marsh Arrowgrass (T. palustre). Two dipterous miners, the agromyzids Liriomyza angulicornis and Liriomyza latipalpis are recorded on Triglochin in Britain. Elsewhere the agromyzids Liriomyza latipalpis and Liriomyza angulicornis are recorded mining Triglochin and can occur on the same plant Spencer, 1990: 340. One non-dipterous mineris recorded on Triglochin in Britain (see below).

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

1> A long narrow leaf mine which winds round the filiform leaves and can penetrate deeper into the parenchyma, becoming invisible. Pupation internal. Puparium reddish Liriomyza angulicornis (Malloch) [Agromyzidae]. -> A narrow mine. Pupation normally in the mine Liriomyza latipalpis Hendel [Agromyzidae]

Non-dipterous miners recorded on Triglochin in Britain Scrobipalpa stangei (E. Hering, 1889) Lepidoptera: Gelechiidae

Last updated 11-Sep-2008  Brian Pitkin

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