Sunday, May 24, 2020
Tutsan and aphids
The bushes of tutsan (Hypericum androsaemum) on the edge of Medlar Wood have started flowering and are of great interest to bumble bees. These shuffle about on the flowers for a few seconds but are clearly not obtaining nectar. There seems to be plenty of pollen on the crown of anthers and they may be gathering some of that.
On one of the red campions I noticed a colony of almost black aphids, Brachycaudus lychnidis sp. grp (there are two very similar UK aphids from this genus on this plant). Attending them was a small parasitic wasp which, I suspect, was summing them up as potential hosts for her eggs.
I was also pleased to see a common blue damselfly (Enallagma cyathigerum) on the edge of Medlar Wood and some way from the kind of water where it would be able to breed.