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(Coleoptera, Diptera, Hymenoptera and Lepidoptera)
by
Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds
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POLYGALA.
Common Milkwort. [Polygalaceae]
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Five
species of Polygala are recorded in Britain. These include
the native Dwarf Milkwort (P. amarella), Chalk Milkwort (P.
calcarea), Heath Milkwort (P. serpyllifolia) and Common
Milkwort (P. vulgaris). The BSBI provide a downloadable plant crib for Polygala.
Two British miners recorded on Polygala.
A key to the European miners recorded on Polygala is provided in Bladmineerders van Europa.
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Milkwort
Polygala sp.
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Key for the identification of the known mines of British
insects (Diptera and non-Diptera) recorded on Polygala
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1a > Leaf-miner: An irregular linear-blotch mine (Spencer, 1972b: 54). Larva a maggot (https://bladmineerders.nl/host-plants/plantae/spermatopsida/angiosperma/fabids/fabales/polygalaceae/polygala/) |
On Polygala vulgaris in Britain and in addition Polygala
chamaebuxus elsewhere. Known only from Surrey in Britain.
Also recorded in the Republic of Ireland. Widespread in continental Europe.
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Liriomyza
polygalae Hering, 1927 [Diptera: Agromyzidae]. |
1b > Leaf-miner: Rather
narrow corridor, untidy and sometimes branched, starting from the
base of the leaf, in particular the midrib. Sides of the corridor
irregularly eaten out, not really parallel. Frass mostly present,
and then in a central line. The larva is capable of leaving the mine and start a new one elsewhere. These later mines are much broader, and the frass is scattered irregularly. Larva with chitinised head. |
Mine of Orthochaetes
insignis on Prunella vulgaris
Image: © Jean-Yves Baugnée (Bladmineerders van Europa) |
Host
plants unknown in Britain. On numerous genera and species in several plant families, including Polygala,
elsewhere. Recorded in southern England. Widespread in continental
Europe.
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Orthochaetes
insignis (Aube, 1863) [Coleoptera: Curculionidae]. |
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