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ASTER. Asters and Michaelmas-daisies. [Asteraceae]
Twenty-eight species of Aster are recorded in Britain - the native Goldilocks Aster (A. linosyris) and Sea Aster (A. tripolium) and the introduced European Michaelmas-daisy (A. amellus), Glaucous Michaelmas-daisy (A. laevis), Narrow-leaved Michaelmas-daisy(A. lanceolatus), Hairy Michaelmas-daisy (A. novae-angliae), Confused Michaelmas-daisy (A. novi-belgii) and Nettle-leaved Michaelmas-daisy (A. schreberi). Nine dipterous miners, the agromyzids Calycomyza humeralis, Chromatomyia asteris, Chromatomyia 'atricornis', Liriomyza eupatorii, Liriomyza pusilla and Liriomyza strigata, the anthomyiid Pegomya nigrisquama, and the tephritids Cornutrypeta spinifrons and Trypeta zoe, are recorded on Aster in Britain. A further species, the agromyzid Phytoliriomyza perpusilla may mine Aster tripolium in S. England. The agromyzids Liriomyza huidobrensis, Liriomyza sativae and Liriomyza trifolii, pest species of ornamental and vegetable crops occasionally intercepted at UK points of entry, are recorded on Aster. Liriomyza huidobrensis and Liriomyza trifoli have been found under glass in England and Wales. All populations have been and continue to be eradicated. The agromyzids Melanagromyza tripolii and Napomyza tripolii bore the stems of Aster in Britain and elsewhere. Elsewhere the British agromyzids Calycomyza humeralis, Chromatomyia asteris, Chromatomyia syngenesiae, Liriomyza eupatorii, Liriomyza huidobrensis, Liriomyza sativae, Liriomyza strigata, Liriomyza trifolii, Nemorimyza posticata, Ophiomyia curvipalpis, Ophiomyia maura and Phytomyza erigerophila, anthomyiids Pegomya depressiventris and Pegomya nigrisquama, and tephritids Cornutrypeta spinifrons and Trypeta zoe are recorded mining Aster. Six non-dipterous miners are recorded on Aster in Britain (see below). Elsewhere two non-dipterous British miners are recorded on Aster (see below). A key to the European mines on Aster is provided in Bladmineerders van Europa. This includes Aristaea pavoniella, Bucculatrix maritima, Cnephasia incertana, Cnephasia asseclana, Cnephasia stephensiana, Coleophora amellivora, Coleophora autumnella, Coleophora conspicuella, Coleophora ditella, Coleophora frankii, Coleophora galatellae, Coleophora linosyridella, Coleophora longicornella, Coleophora ramosella, Coleophora rectilineella, Orthochaetes insignis, Scrobipalpula diffluella, Thiodia torridana, Apteropeda orbiculata, Ophiomyia curvipalpis, Ophiomyia maura, Cornutrypeta spinifrons & Trypeta zoe, Nemorimyza posticata, Calycomyza humeralis, Chromatomyia asteris, Chromatomyia 'atricornis', Liriomyza asteris, Liriomyza eupatorii, Liriomyza huidobrensis, Liriomyza pusilla, Liriomyza strigata, Pegomya nigrisquama, Phytomyza erigerophila, Phytomyza hoppi and Phytomyza pieninica but not Coleophora trochilella, Scrobipalpa instabilella, Scrobipalpula psilella, Scrobipalpa salinella, Liriomyza sativae or Liriomyza trifolii,	Michaelmas Daisy Aster tripolium

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

1> Corridor mine following the mid-rib, with lateral offshoots. 2. -> Mine not primarily above midrib. 3. 2> Corridor mine following the mid-rib, with lateral offshoots. Puparium yellow Trypeta zoe Meigen [Diptera: Tephritidae]. -> A distinctive mine primarily above mid-rib, with irregular short lateral offshoots into leaf blade. Pupation external. Liriomyza strigata (Meigen) [Diptera: Agromyzidae]. -> Broad corridor overlying the midrib. The mine has a number of side branches that distally widen strongly, and may coalesce. Primary and secondary feeding lines very conspicuous. Puparium yellow. Pupation external, in soil. Cornutrypeta spinifrons (Schroeder) [Diptera: Tephritidae]. 3> Pupation internal, at the end of the mine. 4. -> Pupation external. 5. 4> A narrow, irregular linear mine; initially on lower surface but mainly upper surface. Pupation internal. Puparium whitish Chromatomyia asteris (Hendel) [Diptera: Agromyzidae]. -> Mine linear, whitish, both upper and lower surface. Pupation internal, at the end of the mine, with the anterior spiracles projecting through the epidermis. Chromatomyia 'atricornis' auctt. [Diptera: Agromyzidae]. -> A short linear mine initally, later a circular or oval blotch. Frass is excreted in a black mass prior to pupation. Puparium reddish-brown to black, firmly glued with frass within the mine. Calycomyza humeralis (von Roser) [Diptera: Agromyzidae]. 5> A linear mine commencing with a conspicuous regular spiral and then continuing a considerable distance more or less straight. Liriomyza eupatorii (Kaltenbach) [Diptera: Agromyzidae]. -> An irregular linear mine, which in small leaves can form a secondary blotch. Puparium orange Liriomyza pusilla (Meigen) [Diptera: Agromyzidae]. -> The pale-coloured mine runs on the upper side irregularly to the sides, in the middle with blackish spots, where the frass is deposited. It starts in the center of a leaf and without a small mine leading to a large mine. Many mines in a leaf could finally cover the whole leaf Pegomya nigrisquama (Stein) [Diptera: Anthomyiidae].

Non-dipterous miners recorded on Aster in Britain Apteropeda orbiculata (Marsham, 1802) Coleopterea: Chrysomelidae Bucculatrix maritima Stainton, 1851 Lepidoptera: Bucculatricidae Coleophora linosyridella Fuchs, 1880 Lepidoptera: Coleophoridae Coleophora trochilella (Duponchel, 1843) Lepidoptera: Coleophoridae Scrobipalpa instabilella (Douglas, 1846) Lepidoptera: Gelechiidae Scrobipalpa salinella (Zeller, 1847) Lepidoptera: Gelechiidae Additional non-dipterous miners recorded on Aster elsewhere Cnephasia incertana (Treitschke, 1835) Lepidoptera: Tortricidae Orthochaetes insignis (Aube, 1863) Coleoptera: Curculionidae

Last updated 29-Dec-2009  Brian Pitkin

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