Identification key to male hawker dragonflies

Hairy Dragonfly (Brachytron pratense)
abdomen black with paired blue markings, thorax markedly downy, abdomen not waisted, antehumeral stripes narrow and green		 Common Hawker (Aeshna juncea)
abdomen black with paired blue and yellow markings, abdomen waisted, antehumeral stripes narrow and yellow		 Southern Hawker (Aeshna cyanea)
abdomen black with green markings, segments 9 & 10 markings blue, waisted abdomen, antehumeral stripes broad and green		 Migrant Hawker (Aeshna mixta)
abdomen black with blue markings, yellow golf tee-shaped marking on second abdominal segment, antehumeral stripes reduced

Nelson, B., Thompson, R. & Morrow, C., 2000 (August 15). [In] DragonflyIreland http://www.ulstermuseum.org.uk/dragonflyireland/

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