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TANACETUM. Tansy, Costmary and Feverfew [Asteraceae]

Eight species of Tanacetum are recorded in Britain. These include the native Tansy (T. vulgare) and the introduced Costmary (T. balsamita), Rayed Tansy (T. macrophyllum) and Feverfew (T. parthenium). Eight dipterous miners, the agromyzids Chromatomyia 'atricornis', Chromatomyia syngenesiae, Liriomyza strigata, Liriomyza tanaceti, Phytomyza pullula and Phytomyza tanaceti, and the tephritids Trypeta artemisiae and Trypeta zoe, are recorded on Tanacetum in Britain. The agromyzid Liriomyza trifolii, a polyphagous pest species of ornamental and vegetable crops occasionally intercepted at UK points of entry, is recorded on Tanacetum and has been found under glass in England and Wales. All populations have been and continue to be eradicated. Elsewhere the agromyzids Chromatomyia horticola, Liriomyza tanaceti, Liriomyza trifolii, Phytomyza pullula and Phytomyza tanaceti and the tephritids Trypeta artemisiae and Trypeta zoe are recorded mining Tanacetum. One non-dipterous leaf-miner is recorded on Tanacetum in Britain (see below).

Tansy - Tanacetum vulgare

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

1> Blotch mine. Pupation external. Puparium yellow Mine of Trypeta artemisiae on Artemisia vulgaris. Image: Willem Ellis (Source: Nederlandse bladmineerders) Trypeta artemisiae (Fabricius) [Tephritidae]. -> Corridor mine. 2. 2> Corridor mine primarily associated with the mid-rib. 3. -> Corridor mine not primarily associated with the mid-rib. 4. 3> Corridor mine following the mid-rib, with lateral offshoots. Puparium yellow Mine of Trypeta zoe on Artemisia vulgaris. Image: Willem Ellis (Source: Nederlandse bladmineerders) Trypeta zoe Meigen [Tephritidae]. -> A distinctive mine primarily above mid-rib, with irregular short lateral offshoots into leaf blade. Pupation external.     Mines of Liriomyza strigata on Sonchus. Images: Crown copyright - courtesy of CSL Liriomyza strigata (Meigen) [Agromyzidae] 4> Mine linear, whitish, both upper and lower surface. Pupation internal, at the end of the mine, with the anterior spiracles projecting through the epidermis. Mine of Chromatomyia atricornis on Sonchus olearaceus. Images: Willem Ellis (Source: Nederlandse bladmineerders) Chromatomyia 'atricornis' auctt. [Agromyzidae] . -> A narrow linear mine, with frass in black strips. Puparium yellowish-black Mine of Liriomyza tanaceti on Tanacetum vulgare. Image: Willem Ellis (Source: Nederlandse bladmineerders) Liriomyza tanaceti Meijere [Agromyzidae]. -> A narrow linear mine, even in the finest subdivisions of the leaves. Puparium shining black Mine of Phytomyza pullula on Matricaria maritima Image: Willem Ellis (Source: Nederlandse bladmineerders) Phytomyza pullula Zetterstedt [Agromyzidae]. -> A linear mine, frequently on lower surface at beginning; frass with closely adjoining grains. Puparium black Mine of Phytomyza tanaceti on Tanacetum vulgare. Image: Willem Ellis (Source: Nederlandse bladmineerders) Phytomyza tanaceti Hendel [Agromyzidae].

Non-dipterous miners recorded on Tanacetum in Britain Coleophora gardesanella Toll, 1954 Lepidoptera: Coleophoridae

Last updated 30-Jul-2008  Brian Pitkin

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