Trithemis kirbyi

Orange-winged Dropwing - Its natural habitats are subtropical or tropical streams and rivers. It breeds in marshes, ponds, and lakes, and prefers to perch on exposed rocks, dry areas, and boulders in riverbeds. It is an African tropical dragonfly that is now colonising southern Europe because of rising temperatures. The male is a medium-sized scarlet dragonfly with a broad reddish amber patch on the base of transparent wings.
The female is a more dull colour. I came across this dragonfly in the El Hondo region of Spain during October.