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Chromatomyia milii (Kaltenbach, 1864) [Diptera: Agromyzidae] Phytomyza milii Kaltenbach, 1864. Verh. naturh. Ver. preuss. Rheinl. 21: 248. Phytomyza milii Kaltenbach, 1864; Hendel, 1935. Fliegen palaearkt. Reg. 6(2): 431. Phytomyza intermedia Spencer, 1957a. Ent. Gaz. 8: 21-2. Phytomyza milii Kaltenbach, 1864; Griffiths, 1964. Ent. Meddr. 32: 405. Phytomyza milii Kaltenbach, 1864; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 92, 93 (figs 322-3) 94, 95. Phytomyza milii Kaltenbach, 1864; Spencer, 1976. Fauna ent. Scand. 5(1): 447-9, figs 762-9. Chromatomyia milii (Kaltenbach, 1864); Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 356, 377, 378 (figs 1431-2), 405.

Leaf-mine: A substantial linear mine. Pupation internal; posterior spiracles projecting through the epidermis (Spencer, 1976: 449). The mine is illustrated in Nederlandse bladmineerders Mine of Chromatomyia milii on Holcus lanatus. Image: Willem Ellis (Source: Nederlandse bladmineerders) Larva: The larva is described by de Meijere (1926), Dempewolf (2001: 204) and Ellis (Nederlandse bladmineerders). Puparium: The puparium is illustrated by Ellis (Nederlandse bladmineerders). Posterior spiracles elongated (Spencer, 1972b: 95). Hosts in Britain: Poaceae       Hierochloe sp.   Spencer, 1972b: 123 Holcus mollis Creeping Soft-grass Rotheray, 1987 Hordeum     Spencer, 1972b: 95, 124 Hordeum vulgare Six-rowed Barley Spencer, 1972b: 124 Milium     Robbins, 1991: 141 Milium effusum Wood Millet Mines in BMNH Milium effusum Wood Millet Spencer, 1972b: 95, 124 Poa annua Annual Meadow-grass Spencer, 1972b: 124 Poa trivialis Rough Meadow-grass Spencer, 1972b: 124 Hosts elsewhere: Poaceae       Agrostis     Spencer, 1990: 354 Hierochloe     Spencer, 1976: 447 ? Hierochloe     Spencer, 1990: 354 Hierochloe odorata Holy-grass Nederlandse bladmineerders Holcus     Spencer, 1990: 354 Holcus lanatus Yorkshire-fog Nederlandse bladmineerders Holcus mollis Creeping Soft-grass Nederlandse bladmineerders Hordeum     Spencer, 1976: 447 Hordeum     Nederlandse bladmineerders Milium     Spencer, 1990: 356 Milium effusum Wood Millet Spencer, 1976: 447 Milium effusum Wood Millet Nederlandse bladmineerders Poa     Spencer, 1976: 447 Poa     Spencer, 1990: 355 Poa annua Annual Meadow-grass Nederlandse bladmineerders Poa pratensis Smooth Meadow-grass Nederlandse bladmineerders Time of year - mines: July. Time of year - adults: Unknown. Distribution in Britain: Widespread and abundant in south and in Scotland and almost certainly throughout British Isles (Spencer, 1972b: 95). Records include Warwick (Coventry, Holbrooks) (Robbins, 1991: 141) and Cambridge, East Kent, Easterness, Isle of Wight, South Aberdeen, South Somerset, South-west York, Stafford and Surrey (NBN Gateway distribution map - DF, NE and SNH). Also recorded in the Republic of Ireland: Co. Clare, Co. Galway and Co. Mayo (Spencer, 1972b: 95). Distribution elsewhere: Holarctic. Widespread from Morocco through central and northern Europe including Denmark, Finland, Norway, Sweden, Iceland, Faroe Is. (Spencer, 1976: 447), The Netherlands, Luxembourg (Nederlandse bladmineerders), Belgium (de Bruyn & von Tschirnhaus, 1991), Germany (Spencer, 1976: 574), Belarus, Czech Republic, Estonia, European Turkey, Iceland, Italian mainland, Latvia, Lithuania, Poland, Slovakia, Spanish mainland and Switzerland (Martinez in Fauna Europaea). Also recorded in Canada (Spencer, 1969a: 255; Spencer, 1976: 447). Parasitoids: Chrysocharis entedonoides (Walker, 1872) Hymenoptera: Eulophidae Chrysocharis pentheus (Walker, 1839) Hymenoptera: Eulophidae Chrysocharis pubens Delucchi, 1954 Hymenoptera: Eulophidae Chrysocharis pubicornis (Zetterstedt, 1838) Hymenoptera: Eulophidae Cirrospilus diallus Walker, 1838 Hymenoptera: Eulophidae Cirrospilus vittatus Walker, 1838 Hymenoptera: Eulophidae Diglyphus minoeus (Walker) Hymenoptera: Eulophidae Hemiptarsenus unguicellus (Zetterstedt) Hymenoptera: Eulophidae Pediobius metallicus (Nees) Hymenoptera: Eulophidae Pnigalio soemius (Walker) Hymenoptera: Eulophidae Cyrtogaster vulgaris Walker Hymenoptera: Pteromalidae

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Last updated 16-Aug-2008  Brian Pitkin