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(Coleoptera, Diptera, Hymenoptera and Lepidoptera)
by
Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds
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BECKMANNIA.
Slough-grasses. [Poaceae]
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Two
species of Beckmannia are recorded in Britain. Both are introduced.
Only one British miner is recorded on Beckmannia.
Nearly 100 British miners or possible miners are recorded on grasses in Britain.
It is recommended that adults of all miners on grasses be reared to be certain of their identity. |
Key for the identification of the known mines of British
insects (Diptera and non-Diptera) recorded on Beckmannia
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1 > Leaf-miner: Narrow whitish mine, with frass in distinct black lumps. Pupation
internal (Spencer, 1976:
422).
Whitish,
upper-surface, descending corridor, about halfway up the blade.
Frass in distinct black grains that are lying further apart than
their diameter. Pupation in the mine. |
On Arrhenatherum, Holcus, Milium and Phleum, but not yet on Beckmannia, in Britain and additional grasses elsewhere. Recorded in Scotland
and Widespread in continental Europe. Also recorded in Canada.
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Chromatomyia
fuscula (Zetterstedt, 1838) [Diptera: Agromyzidae]. |
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