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CHEIRANTHUS. Wallflower. [Brassicaceae]

Cheiranthus is not recorded in the wild Britain, but Wallflowers are common garden plants. Two polyphagous species, the agromyzid Chromatomyia horticola and the drosophilid Scaptomyza flava are recorded on Cheiranthus in Britain. Elsewhere the polyphagous agromyzids Liriomyza huidobrensis, Liriomyza strigata and the polyphagous drosophilid Scaptomyza flava, are recorded mining Cheiranthus. No non-dipterous miners are recorded on Cheiranthus in Britain. Elsewhere one non-dipterous miner is recorded on Cheiranthus.

Key for the identification of the known Diptera mines on Cheiranthus in Great Britain and Ireland.

1> Mine linear, whitish, both upper and lower surface. Pupation internal, at the end of the mine, with the anterior spiracles projecting through the epidermis. Puparium whitish Mine of Chromatomyia horticola on Papaver rhoeas. Image: Willem Ellis (Source: Nederlandse bladmineerders) Chromatomyia horticola (Goureau) [Agromyzidae]. -> 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].

Additional British non-dipterous miners recorded on Cheiranthus elsewhere Ceutorhynchus contratus (Marsham, 1802) Coleoptera: Curculionidae

Last updated 13-Dec-2008  Brian Pitkin

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