Byfield Pocket Park, 12 June, 2013 |
Noon Fly Mesembrina meridiana. Byfield Pocket Park, 12 June, 2013 |
A smart hoverfly, Syrphus ribesii, was 'loafing' on a leaf nearby. There are about 260 members of this family - the Syrphidae - occurring in Britain and many of them, as in the example shown, are mimics of bees or wasps. The advantages of this seem obvious.
The hoverfly, Syrphus ribesii, in Byfield Pocket Park. 12 June, 2013 |
A short distance away a quite different creature was inducing galls on an aspen, Populus tremula. This is the work of a mite, Phyllocoptes populi. It will attack various poplars but I have only ever found it on aspen. These mites seem to do the tree no harm and, indeed, it is not in the interests of any gall-causer to harm its host.
Galls on Aspen, caused by the mite Phyllocoptes populi, Byfield Pocket Park. 12 June, 2013 |
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