Gomphus pulchellus
Recorded in 13 10km squares to the end of 2015.
I saw Gomphus pulchellus for the first time (an immature female) on the Arroyo de Las Cañas in April 2014 and in April/May 2015 I saw a few males at different locations. At the same sites they seem to have been replaced by Onychogomphus forcipatus by the second week of June!
Female
Male