|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