This vagrant darter Sympetrum vulgatum was a great find by Derek Binns at Summerfields Wood Nature Reserve on October 12th. A large group of darters, probaly all migrants, were feeding along the grass ride. Most were common darters but this female vagrant darter was amongst them. This is a rare dragonfly in the UK and only occasionally turns up mostly in Autumn.
The excellent photo by Derek shows the key identification features. The black line along the top of the frons (face plate in front of eyes) extends slightly down the side of the frons. Also the far edge of the vulvar scale near the end of the abomdeon is pointing down at a right angle to the abdomen.