Miner Matters:                                                                                     November 2003

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Green (and red!) islands

It is worth checking fallen leaves at this time of year. The 'green islands' from the Ectoedemias on Oak are very prominent at the moment. Look out for E.quinquella also soon.

This mine (shown left) is an unusual (and striking) colour variant from Ectoedemia argyropeza, with the usual 'green island' but also bright red pigmentation.

 Image: David Manning

 

An extremely interesting mine is this from Black Poplar (Populus nigra) from Neil Sherman and Tony Prichard in Suffolk. It is an Ectoedemia, but will be bred through to determine the species. Note the 'green island' and the larva, which normally hides in the swollen petiole.

 

New British Species
The latest Entomologists Gazette gives details of a new British leaf miner (Lepidoptera) - Cosmopterix pulchrimella.

The mines were discovered in Guernsey in 2002 on Pellitory-of-the-wall (Parietaria judaica) by Rich Austin and Peter Costen.

Thanks to them both, for giving details of this miner. The mines tend to be found in damp, shady places and on the North facing sides of buildings. The moths are very active, with Rich saying that 'they appeared to be 'displaying' by alighting on a leaf or grass stem and rotating on the spot alternately several times to the left and then to the right and all the time waving their antennae'.

Image: Rich Austin

 

Bedellia somnulentella

This miner has been prominent in Holland and some parts of the UK this year and appears to be having a very extended season - as shown by David Manning finding these mines last week.

 

It shows well the initial mines made and larvae can be seen in the mine.

 

 

 

Image: David Manning

 

 

Newsletter of leafmines.co.uk                                                                                                                                              November 2003