Last Sunday I spent just under an hour walking a footpath in the area between Brackley (Northants) and Turweston (Bucks) to try and get some micro records for the hectad SP53, only a tiny proportion of which lies in VC24. So far as Bucks is concerned that 10km square has now gone from zero micro records to nearly thirty with the leaf-mining species listed below, so it was definitely a worthwhile afternoon's work.
On Apple: Phyllonorycter blancardella/hostis (some retained to rear), Parornix scoticella
On Blackthorn: Stigmella plagicolella
On Bramble: Stigmella aurella
On Bramble: Stigmella aurella
On Dog Rose: Stigmella anomalella
On Dogwood: Antispila metalella
On Elm: Stigmella lemniscella, Stigmella ulmivora, Stigmella viscerella, Phyllonorycter schreberella,
Phyllonorycter tristrigella
On Field Maple: Stigmella aceris, Phyllonorycter acerifoliella
On Hawthorn: Stigmella oxyacanthella, Stigmella regiella, Phyllonorycter corylifoliella, Phyllonorycter
oxyacanthae, Parornix anglicella, Lyonetia clerkella
On Sycamore: Stigmella speciosa, Phyllonorycter geniculea
The above were all in SP5936. Numbers were limited by the vegetation on offer and I had to move north into the adjacent 1km square, SP5937, to find some different food-plants:
On Hazel: Stigmella microtheriella, Phyllonorycter coryli, Phyllonorycter nicellii, Parornix devoniella
On Sallow: Stigmella salicis, Phyllonorycter sp (some retained to rear)
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| Stigmella lemniscella on elm, 24th October |
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| Stigmella salicis (group) on sallow, 24th October |
Recent DNA work has suggested that Stigmella salicis is actually a group of cryptic species but the taxonomic situation doesn't seem to have been resolved yet. In the meantime it is at least worth recording the side of the leaf on which the eggs are laid (underside on both the active and vacated mines in the image above).
Dave Wilton Westcott, Bucks
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