Black-rimmed snout hoverfly: the Heineken Fly!

The Black-rimmed snout hoverfly, Rhingia campestris Meigen, 1822 (Diptera: Syrphidae) is a common and widespread fly which is often seen visiting flowers or resting on nearby vegetation. The larvae live and develop in cow dung, whilst the adults feed on nectar and pollen. Pollen is required by the females as a protein source for egg development;…

Oak apple galls

The leaves have only just started to open on this oak tree, a Sessile oak I think, yet it is already covered by many galls. These rounded disfigurations – called Oak apples – are caused by a tiny (5-6 mm) wasp in the family Cynipidae, called Biorhiza pallida.  It is known that the galls are caused…