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ANTHEMIS.
Chamomiles [Asteraceae]
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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.
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Key for the identification of the known Diptera mines on
Anthemis
in Great Britain and Ireland
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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.
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
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].
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British
non-Diptera miners recorded on Anthemis elsewhere
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Bucculatrix
cristatella (Zeller, 1839) [Lepidoptera: Bucculatricidae]
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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).
More..
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