194 British Dragonflics. 



taken on Esher Common, September 15, 1896.] (Fig. 4, 

 No. I.) 



Nymph. 



Length, 44mm. ; breadth, 8mm. Very .similar to 

 ^. cyanca, a httle shorter. Processes strikingly different. 

 Anterior only half as large as posterior and much 

 smaller (Fig. 19, No. 4). Granulation, color of legs, body, 

 and appendages as in ^^. cyanea. The lateral append- 

 ages are more slender and more pointed, and the hind 

 angles of occiput more rounded than in .-E. grandis. 

 (L. Cabot, " Immature State of the Odonata," Part II. 

 Cambridge, U.S.A., 1881.) On reference to Cabot's 

 figures of the side view of ^. cyanea and ^. jiuicea 

 we find a striking difference, especiall}- in the distance 

 through from dorsal to ventral surface, the distance in 

 the case of ^E. juncea being very small. 



Date. 



Unlike the last this is one of the later Dragonflies, 

 appearing on the wing about midsummer. I have 

 not myself taken one before August. Thence it occurs 

 till the very end of September. 



Habits. 



Though sometimes seen awa\- from the water in the 

 openings of a wood, the habit of these insects seems 

 to be to hawk backwards and forwards or round and 

 round in the sunshine over the reeds or along the 

 margin of a pond, settling occasionall)-, especially if 

 the sun disappears for a time. To make a capture is 



