Common Hawker Aeshna juncea
74mm, Wings 95mm.
Thorax top is black , narrow yellow antehumeral stripes and sides are brown with 2 yellow bars; abdomen black with yellow and blue spots including segments 9 and 10; legs black; wings have brilliant yellow costa.
Thorax brown; abdomen brown with yellow spots.
Acidic moorland and heath land pools, of which there is little in the East Riding.
Males seize upon females, mate for up to 1 hour in nearby vegetation. Female oviposits alone. Larvae 2+ years.
Late June – October. Found in Scotland, Wales and Western half of England including parts of Lincolnshire and North Yorks Moors.