2:;0 



British Dragonfiics. 



Male Imago. 



Lower part of the face yellowish ; labium orange ; head 

 chiefl}' bronze-green. Eyes blue. P rot ho rax, powdered 

 with blue ; hind-margin straight. Thorax bronze-green 

 above, powdered with blue below ; projections between 

 wings and at their attachments blue. Wli/gs large and 

 broad. Pterostio-jiia black, broad, long, extending over 

 two or more cellules of the series below. Legs black, 

 with a yellow line on the femora. Abdoi/ieu bronze-green, 

 in some parts with a coppery tint ; but the first, ninth, 

 and tenth segments are powdered with blue, while the 

 second is partly so ; yellowish below, powdered with 



blue along the centre ; sutures 

 ..^i yellow. Anal appendages black : 



'^^^■^ their shape will be best under- 



stood from Fig. ^,'6. 



-^t*^-' 



Female Imago. 



This difters from the male in 

 that it is shorter and much 

 stouter ; on the thorax orange- 

 8. —Anal Append- yellow takes the place of blue. 

 Abdomen is much tinged with a 

 coppery sheen, especially on seg- 

 ments 8 to the end. There is 

 no blue on the upper surface ; 

 but the sutures and part of the first segment are 

 yellowish-orange. JFings longer and broader than in 

 the male. Ovipositor and genital valz'es very conspicuous, 

 and extending slightly beyond the tenth segment- 

 Anal appendages short, conical, pointed, black. 



Fig 



AGES OF LeSTES DRVAS 



(Male). Viewed erom 



ABOVE. 



(After Hagen, in De Selys' 

 " Revue des Odonates.") 



