Gonia picea on the wing – 21/3/2012

It was a sunny day so I took a short walk across Hartslock Nature Reserve this lunchtime, with a vague idea that I might see some tachinids, like Tachina ursina. But to my great surprise (because they had never been recorded there before) I saw lots of Gonia picea all zigzagging low over the grass. […]