The leaf and stem  mines of British flies and other insects by Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds


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ANTHEMIS. Chamomiles [Asteraceae]


Seventeen species of Anthemis are recorded in Britain. These include the native Corn Chamomile (A. arvensis) and Stinking Chamomile (A. cotula), and the introduced Yellow Chamomile (A. tinctoria) and Sicilian Chamomile (A. punctata).

Three Diptera miners, the agromyzids Chromatomyia 'atricornis', Ophiomyia curvipalpis and Phytomyza pullula, are recorded on Anthemis in Britain.

The agromyzid Napomyza lateralis feeds in the stems of Anthemis, Bidens, Calendula, Dimorphotheca, Matricaria, and Senecio in Britain, although it has also been found in the inflorescence of Matricaria.

Elsewhere the agromyzids Chromatomyia 'atricornis', Liriomyza centaureae, Liriomyza strigata, Ophiomyia curvipalpis, Phytomyza pullula and the tephritid Trypeta zoe are recorded mining Anthemis.

No non-Diptera miners are recorded on Anthemis in Britain.

Elsewhere one British non-Diptera miner is recorded on Anthemis (see below).

A key to the European miners, based on characteristics of the mines, immature stages and where relevant the larval cases, recorded on Anthemis, Matricaria and Tripleurospermum is provided in Bladmineerders van Europa. This includes Coleophora follicularis, Bucculatrix cristatella, Scrobipalpula psilella, Trypeta zoe, Chromatomyia 'atricornis', Liriomyza strigata, Phytomyza pullula and Liriomyza centaureae but not Ophiomyia curvipalpis.




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




1> A narrow, inconspicuous stem mine. Pupation at the end of the mine. Puparium yellowish or completely black, anterior spiracles projecting through epidermis.

On Achillea, Achillea millefolium and possibly Anthemis, Matricaria and Medicago sativa in Britain. In Britain widespread in south, not uncommon.

Ophiomyia curvipalpis (Zetterstedt) [Diptera: Agromyzidae].

-> Leaf mine.

2.

2> Mine linear, whitish, both upper and lower surface. Pupation internal.

Mines of Chromatomyia atricornis on Sonchus olearaceus
Images: Willem Ellis (Bladmineerders van Europa)

Two highly polyphagous species of Chromatomyia, with indistinguishable mines, have been recorded in Britain. These are syngenesiae (Hardy) and horticola (Goureau). British records of horticola and syngenesiae on Asteraceae hosts not based on examination of the genitalia of reared males are treated here as Chromatomyia 'atricornis'.

Chromatomyia 'atricornis' auctt. [Diptera: 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)

On Achillea millefolium, Anacyclus pyrethrum, Anthemis, Tanacetum vulgare, Tripleurospermum, Tripleurospermum maritimum and Tripleurospermum maritimum x inodora in Britain and other Asteraceae elsewhere. Widespread in Britain and Europe. Also recorded in Canada.

Phytomyza pullula Zetterstedt [Diptera: Agromyzidae].



British non-Diptera miners recorded on Anthemis elsewhere

Bucculatrix cristatella (Zeller, 1839) [Lepidoptera: Bucculatricidae]

 

Leaf-mine: The larva feeds in a leaf-mine to begin with, then later feeds externally on the leaves, shrivelling and blanching or browning them (UKMoths).

Initially an extremely fine corridor along the leaf margin; these mines mainly in the lower leaves. Frass in a narrow central line. The larva can leave its mine and restart elsewhere. Older larvae live free, and feed by slicing open the margin of a leaf segment near its tip and eating away as much tissue as it can reach (to about one third if its body length). The result is a number of full depth blotch mines. When the larva has become too large even for this strategy, its starts to feed freely on the leaf (Bladmineerders van Europa).

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Last updated 11-Aug-2010  Brian Pitkin

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