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Liriomyza ptarmicae de Meijere, 1925 [Diptera: Agromyzidae] Liriomyza ptarmicae de Meijere, 1925. Tijdschr. Ent. 68: 286. Liriomyza millefolii Hering, 1927c. Z. angew. Ent. 13: 185. [Synonymised by Spencer, 1976: 263] Liriomyza chrysanthemi Hering, 1956b. Notul. ent. 31: 116. [Synonymised by Spencer, 1976: 263]. Liriomyza ptarmicae de Meijere, 1925; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 56 (fig. 189), 57, 111. Liriomyza ptarmicae de Meijere, 1925; Spencer, 1976. Fauna ent. Scand. 5(1): 263-4, figs 467-9. Liriomyza ptarmicae de Meijere, 1925; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 300 (figs 1156-7), 301, 303, 307.

Leaf-mine: A narrow linear mine commencing on lower surface (Spencer, 1972b: 57; Spencer, 1976: 264). The mine is illustrated in Nederlandse bladmineerders. Mine of Liriomyza ptarmicae on Achillea millefolium. Image: Willem Ellis (Source: Nederlandse bladmineerders) Larva: Posterior spiracles each with 3 bulbs (Spencer, 1972b: 57; Spencer, 1976: 264). Puparium: Yellow (Spencer, 1976: 264). Hosts in Britain: Asteraceae       Achillea millefolium Yarrow Robbins, 1989: 22 Achillea millefolium Yarrow Spencer, 1972b: 111 Achillea ptarmica Sneezewort Robbins, 1991: 115 Achillea ptarmica Sneezewort Spencer, 1972b: 111 Hosts elsewhere: Asteraceae       Achillea     Spencer, 1990: 307 Achillea millefolium Yarrow Nederlandse bladmineerders Achillea millefolium Yarrow Spencer, 1976 Achillea ptarmica Sneezewort Nederlandse bladmineerders Achillea ptarmica Sneezewort Spencer, 1976: 264 Artemisia     Spencer, 1990: 307 Matricaria     Spencer, 1990: 307 Time of year - mines: Unknown. Time of year - adults: Unknown. Distribution in Britain: Probably widespread, at least in south. Records include London (Hampstead), Middlesex (Scratch Wood) (Spencer, 1972b: 57) and Warwick (Coventry) (Robbins, 1991: 115). Distribution elsewhere: Holarctic. Widespread in Europe including Sicily, Denmark, Finland, Norway, Sweden (Spencer, 1976: 263), The Netherlands, Belgium, Luxembourg (Nederlandse bladmineerders), Germany (Spencer, 1976: 558), Belarus, Czech Republic, Estonia, French mainland, Germany, Hungary, Latvia, Lithuania, Norwegian mainland, Poland and Slovakia (Martinez in Fauna Europaea). Also recorded in Canada (Alberta) (Spencer, 1976: 263). Parasitoids: Unknown.

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Last updated 30-Sep-2008  Brian Pitkin