Somatochlora. 1 39 



deeper near the costa. Ptcrostio-ina blackish-brouii. 

 Accessory uicuibi-aiic white, chirkcr towards the anal 

 angle of the hind-wing, which in this sex is pointed. 

 Legs black. AbdoDieii bronze-green, with a slight 

 coppery tint ; much constricted at segments 3 and 4, 

 and expanding a great deal bexoncl. Anal (rppeiu/aoes 

 as long as last two segments ; lower ones for rather 

 more than the basal half slightl)- curxed, then bending 

 outward with a more decided curxc, and finally almost 

 approaching at the tips ; rounded above, but with three 

 teeth below ; knoer short, triangular, turned up slightly 

 at the tip. (See Fig. 28.) 



Female Imago. 



Hiiul-i^'iiiii rounded at anal angle. Pterostignur 

 dark brown, paler when immature. Accessory membrane 

 narrow, udiite. Abdomen not constricted, but gradually 

 tapering towards the anal extremit}' ; tw o oblong )'ellow 

 spots near the base of .segment 3. Anal appendages 

 leaf-like, rather small. Milvar scale triangular, pointed, 

 and spout-like. 



Date. 



June appears to be the month for this species at 

 Rannoch, though it ma}' no doubt be taken in Jul}-, 

 and possibl}- till the beginning of August. 



Habits. 



C. aretica seems at Rannoch to be chiefl}- confined to 

 the sloping ground in the upper portion of the Black 

 W ood, flying in more open localities than ^E. cwrnlea, 

 and preferring a bit of boggy heath or swamp, 

 especiall}- on a slope. It has a ver}- tantalising way 



