More tolerant of pollution than other species, only really avoiding fast-flowing water. Can also be found in brackish conditions and acidic peaty pools. Wide range including garden ponds, lakes, rivers, canals and ditches. Frequently found in dull weather when other species are inactive. Females oviposit alone onto the tissue of aquatic plants and debris, where they are not usually harassed by the males. Often females selected by the males are still in their immature colour forms. Copulation last from between two to six hours, due to this, it is the most frequently observed species seen in the wheel position. Often found in marginal vegetation in large numbers. The second is an andromorph form which adopts the same colours as a male. The first is infuscans which is a pale green colour, and retaining the black humeral stripes. The form violacea mature into two separate from. After around eight days they mature and change colour, rufescens become greenish-brown of the form rufescens-obsoleta. Start as either rufescens with a reddish-pink thorax and blue segment 8 or violacea with a violet thorax and antehumeral stripes, black humeral stripes and blue segment 8. Segment 8, though not always blue, is usually clearly different from the other sections. Occur in several colour forms dependent on age. Pterostigma is distinctive being bi-coloured black and white.
Blue or green sides to the thorax and antehumeral stripes. 29-34mm Wingspan: 35-40mm Hindwing 14-21mm Maleĭark bronze-black metallic with blue segment 8.
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