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RESEDA. Mignonettes and Weld. [Resedaceae]

Two species of Reseda, are recorded as native to Britain - Wild Mignonette (R. lutea), Weld (R. luteola). Three further species have been introduced - White Mignonette (R. alba), Garden Mignonette (R. odorata) and Corn Mignonette (R. phyteuma). Three dipterous miners, the polyphagous agromyzids Chromatomyia horticola and Liriomyza strigata and the polyphagous drosophilid Scaptomyza flava, are recorded on Reseda in Britain. No non-dipterous miners are recorded on Reseda in Britain.

Wild Mignonette - Reseda lutea.

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

1> Mine linear, whitish, both upper and lower surface. Pupation internal, at the end of the mine. Puparium whitish, anterior spiracles projecting through the epidermis. Mine of Chromatomyia horticola on Papaver rhoeas. Image: Willem Ellis (Source: Nederlandse bladmineerders) Chromatomyia horticola (Goureau) [Agromyzidae]. ->A distinctive mine primarily above mid-rib, with irregular short lateral offshoots into leaf blade. Pupation external; posterior spiracles each with an ellipse of 10-12 spiracular pores.     Mines of Liriomyza strigata on Sonchus. Image: Crown copyright - courtesy of CSL Liriomyza strigata (Meigen) [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].

Last updated 30-Jul-2008  Brian Pitkin

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