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(Coleoptera, Diptera, Hymenoptera and Lepidoptera)
by
Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds
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AREMONIA.
Bastard Agrimony. [Rosaceae]
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Only
one species of Aremonia is recorded in Britain, the introduced
Bastard Agrimony (A. agrimonioides).
Four British miners are recorded on Aremonia.
A key to the European miners recorded on
Aremonia is provided in Bladmineerders van Europa.
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Key for the identification of the known mines of British
insects (Diptera and non-Diptera) recorded on
Aremonia
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1a > Leaf-miner: Initially
a linear mine which later develops into a conspicuous blotch; frass
in two rows in linear section, scattered irregularly in the blotch
(Spencer, 1976: 134-5, fig.
237, as potentillae).
Corridor,
gradually and considerably widening towards the end. Frass in two
rows in the corridor part, further up dispersed irregularly. Pupation
outside the mine.
A short broad upper surface corridor leading to a long blotch between veins. |
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On Agrimonia, Filipendula, Fragaria, Geum, Potentilla, Rubus and Sanguisorba, but not yet on Aremonia, in Britain. On additional Rosaceae elsewhere.
Common and widespread throughout Britain. Also recorded in the
Republic of Ireland, Europe, Japan, U.S.A. and Canada.
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Agromyza idaeiana (Hardy, 1853) [Diptera: Agromyzidae]. |
1b > Leaf-miner: A long gallery with dispersed frass. Oviposition may be at either side of the leaf,
not necessarily close to a vein. The mine is a not very tortuous
corridor, not widened in the end. Frass in a broad central line.
The mine strongly overlaps with the one of S. splendidissimella. |
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On Agrimonia, Fragaria, Geum, Potentilla and Rubus, but not yet on Aremonia,
in Britain plus Aremonia and Geranium elsewhere. Widespread in Britain
and continental Europe.
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Stigmella
aurella (Fabricius, 1775) [Lepidoptera: Nepticulidae]. |
1c > Leaf-miner: Oviposition on the leaf underside. There starts an initially strongly
contorted narrow corridor with a linear interrupted frass line.
This is continued in broad corridor or elongated blotch with dispersed
frass. Often a number of mines in a leaf. Pupation inside the mine,
in a violet to blackish cocoon. |
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On Agrimonia eupatoria, but not yet on Aremonia, in Britain and Agrimonia eupatoria
and Aremonia agrimonioides elsewhere. Recorded in south-east
England. Widespread in continental Europe.
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Ectoedemia
agrimoniae (Frey, 1858) [Lepidoptera: Nepticulidae]. |
1d > Leaf-miner: Full depth transparent blotch without a clear preceding
corridor, quickly and strongly widening from the start. Frass in
sausage-shaped granules. Often several leaflets of a composite leaf
each have a mine.
The larvae of sawflies have at least six thoracic legs (although they may be reduced or absent), a head capsule and chewing mouthparts with opposable mandibles but no abdominal legs. |
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Fenella nigrita larva
Image: © Willem Ellis (Bladmineerders van Europa) |
On Agrimonia, Potentilla and Rubus, but not yet on Aremonia, in Britain
plus remonia, Filipendula, and Fragaria elsewhere.
Widespread in Britain including Surrey and West Cornwall. Widespread
in continental Europe.
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Fenella
nigrita Westwood, 1839 [Hymenoptera: Tenthredinidae]. |
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