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ANTHRISCUS.
Chervils and Cow Parsley. [Apiaceae]
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Two
species of Anthriscus - Bur Chervil (A. caucalis)
and Cow Parsley (A. sylvestris) - are native to Britain.
A third species has been introduced - Garden Chervil (A. cerefolium).
Only
one Diptera miner, the agromyzid
Phytomyza chaerophylli, is recorded on Anthriscus
in Britain.
Elsewhere,
in addition to Phytomyza
chaerophylli, the agromyzids Napomyza
carotae and Liriomyza
trifolii and the tephritid Euleia
heraclei are recorded mining Anthriscus.
Only
one non-Diptera miner, Epermenia
chaerophyllella, is recorded on Anthriscus in Britain (see below).
Elsewhere
one additional British non-Diptera miner,
Epermenia
aequidentellus,
is
recorded on Anthriscus.
A
key to the European miners, based on characteristics of the mines,
immature stages and where relevant the larval cases, recorded on
Anthriscus is provided in Bladmineerders van Europa. This includes Euleia
heracleii, Napomyza
carotae, Phytomyza
chaerophylli, Agonopterix purpurea, Epermenia
chaerophyllella and Epermenia aequidentellus but
not Liriomyza trifolii
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Cow
Parsley
Anthriscus sylvestris
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Key for the identification of the mines of British Diptera recorded on
Anthriscus
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Note: Diptera larvae may live in a corridor mine, a corridor-blotch mine, or a blotch mine, but never in a case, a rolled or folded leaf, a tentiform mine or sandwiched between two more or less circular leaf sections in later instars. Pupation never in a cocoon. All mining Diptera larvae are leg-less maggots without a head capsule (see examples). They never have thoracic or abdominal legs. They do not have chewing mouthparts, although they do have a characteristic cephalo-pharyngeal skeleton (see examples), usually visible internally through the body wall. The larvae lie on their sides within the mine and use their pick-like mouthparts to feed on plant tissue. In some corridor miners frass may lie in two rows on alternate sides of the mine. In order to vacate the mine the fully grown larva cuts an exit slit, which is usually semi-circular (see Liriomyza huidobrensis video). The pupa is formed within the hardened last larval skin or puparium and as a result sheaths enclosing head appendages, wings and legs are not visible externally (see examples).
1 > Leaf-miner: A short, narrow, linear mine, generally closely following
margin of leaf segment; in very small sections of a leaf producing
a secondary blotch. Puparium shining black
On
Anthriscus, Chaerophyllum, Conopodium, Daucus,
Torilis and possibly Sison in Britain and additional
Apiaceae elsewhere. Common and widespread throughout Britain.
Also recorded in the Republic of Ireland and widespread and common
throughout much of Europe.
Phytomyza
chaerophylli Kaltenbach, 1856 [Diptera: Agromyzidae].
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Key for the identification of the mines of British non-Diptera recorded on
Anthriscus
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Note: The larvae of mining Coleoptera, Hymenoptera and Lepidoptera may live in a corridor mine, a corridor-blotch mine, a blotch mine, a case, a rolled or folded leaf, a tentiform mine or sandwiched between two more or less circular leaf sections in later instars. Larva may pupate in a silk cocoon. The larva may have at least six legs (although they may be reduced or absent), a head capsule and chewing mouthparts with opposable mandibles (see video of a gracillarid larva feeding). Larvae of Hymenoptera and Lepidoptera usually also have abdominal legs (see examples). Frass, if present, never in two rows. Unless feeding externally from within a case the larva usually vacates the mine by chewing an exit hole. Pupa with visible head appendages, wings and legs which lie in sheaths (see examples).
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1a > Leaf-miner: Young
larvae make small, full depth blotch mines, almost without frass.
Older larva live externally on the plant under a light web (Bladmineerders
van Europa).
Initially
forms a small blotch mine and may later feed in a slight web. In
coastal areas may continue mining throughout the larval stage (British
leafminers).
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Recorded
on Daucus carota and Pimpinella saxifraga in Britain
and Anthriscus caucalis, Athamanta cretensis, Daucus carota,
Meum athamanticum, Pimpinella saxifraga, Thapsia villosa and Torilis
arvensis subsp. neglecta elsewhere. East Cornwall, Isle of
Wight and West Cornwall and Britain. Widespread in continental
Europe.
Epermenia
aequidentellus (O. Hofmann, 1867)
[Lepidoptera: Epermeniidae]
.
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1b > Leaf-miner: The larvae are often gregarious and feed on the underside of the leaf causing a 'windowing' effect as they eat the mesophyll and lower epidermis. This effect can be seen from the top of the
leaf as it discolours (British
leafminers).
Short,
small, irregular, sometimes widened corridor. Mostly a number in
a leaf, concentrated in the axils of the midrib and the primary
side veins. Each larva makes a number of mines. Often the larva
protrudes with its rear end out of the mine, causing most frass
to be ejected. While moving, at the leaf underside, silken threads
are produced, in wich grains of frass may be trapped. Older larvae
live free and cause window feeding, often in a group under a light
spinning (Bladmineerders
van Europa).
Recorded
on Angelica sylvestris, Anthriscus sylvestris, Daucus carota,
Heracleum sphondylium and Heracleum sativa in Britain and
Aegopodium podagraria, Angelica archangelica subsp. litoralis,
Angelica sylvestris, Anthriscus caucalis, Anthriscus cerefolium,
Anthriscus sylvestris, Apium graveolens, Berula erecta, Carum
carvi, Chaerophyllum hirsutum, Chaerophyllum temulum, Cicuta virosa,
Conium maculatum, Daucus carota, Heracleum sphondylium, Levisticum
officinale, Oenanthe, Pastinaca sativa, Peucedanum, Pimpinella
saxifraga, Seseli libanotis, Silaum, Sium latifolium, Sison amomum
and Torilis elsewhere. Widespread in Britain and continental
Europe.
Epermenia
chaerophyllella (Goeze, 1783) [Lepidoptera: Epermeniidae]
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