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ERYSIMUM. Wallflowers and Treacle-mustards. [Brassicaceae]

Twelve species of Erysimum are recorded in Britain. All are introduced and include Wallflowers and Treacle-mustards. Only one dipterous miners, the drosophilid Scaptomyza flava, is recorded on Erysimum in Britain. Elsewhere the polyphagous agromyzids Liriomyza bryoniae and Liriomyza strigata are recorded mining Erysimum. No non-dipterous miners are recorded on Erysimum in Britain.

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

1> Corridor-blotch mine, normally dorsal; usually whitish; in small leaves it lies characteristically in the centre of the leaf often touching the petiole; in larger leaves it lies to one side of the mid-rib. Frass deposited in green clumps near the leaf margin. Pupation usually external, sometimes in a separate pupation mine. Mine of Scaptomyza flava on Brassica rapa. Image: Willem Ellis (Source: Nederlandse bladmineerders) Scaptomyza flava (Fallén) [Drosophilidae]

Last updated 30-Jul-2008  Brian Pitkin

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