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SPERGULARIA. Sea-spurreys. [Caryophyllaceae] |
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Eight species of Spergularia are recorded in Britain. These include the native Greek Sea-spurrey (S. bocconei); Lesser Sea-spurrey (S. marina), Greater Sea-spurrey (S. media), Sand Spurrey (S. rubra) and Rock Sea-spurrey (S. rupicola). Three dipterous miners, the anthomyiids Delia echinata and Delia florilega and the ephydrid Clanoneurum cimiciforme, are recorded on Spergularia in Britain, although the record of Delia florilega on Spergularia is doubtful (Mike Ackland, pers.comm.). Elsewhere the highly polyphagous agromyzids Liromyza bryoniae and Liriomyza strigata, the anthomyiids Delia echinata and Delia florilega, the drosophilid Scaptomyza graminum, and the ephydrid Clanoneurum cimiciforme are recorded on Spergularia, although the record of Delia florilega on Spergularia is doubtful (Mike Ackland, pers.comm.). No non-dipterous miners are recorded on Spergularia in Britain. |
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1>
Mine underground on young plants, or at least beginning so.
Delia florilega (Zetterstedt) [Anthomyiidae]. ->Mine above ground. 2. 2>Leaf and stem mine. Apart from mining leaves the stems are excavated. Oviposition takes place on the tips of shoots. The larva at first mines strip-like full depth corridors in the apical leaves, going then into the stem, which it hollows out, so that it becomes translucent. It then searches out leaves further down in which initially it mines depositing frass in strips, but then in blotches. The corridors often lie in one half of the leaf and can be branched. In the blotches the frass is irregularly scattered. Pupation is in the hollow stem or in the ground. Delia echinata (Séguy) [Anthomyiidae]. ->Broad leaf mine of variable depth. Frass spread irregularly. Clanoneurum cimiciforme (Haliday) [Ephydridae]. |
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Last
updated
27-Aug-2007
Brian Pitkin
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