192 British Dragonfiics. 



Female Imago. 



Eyes greenish. Stripes on front of thorax very 

 narrow, or reduced to a point ; projections between 

 wings yellow. Anal angle of hind-wings rounded. 

 Ptcrostigiiia russet, 5 mm. in length. Abdoinoi but 

 little constricted at segment 3 ; spots that were blue in 

 the male greenish-yellow. Anal appendages of moderate 

 length, brown, leaf-like, with a black median carina, 

 somewhat rounded at tip. Ovipositor as long as 

 segment 9, curved, pointed, but shorter and much less 

 conspicuous than in Al. eyaiiea. 



Hybrid. 



At Rannoch, in June, 1898, Mr. Porritt relates that 

 a curious ^-E. juueea was taken, so much like a cceniiea 

 that it may be a hybrid, especially as no other Juueea 

 appeared to be out, the date being, of course, early 

 for the species. It may be worth noting that near 

 Bournemouth, on August 15, 1895, the author took 

 an ^E. juneea flying on intimate terms with a male 

 ^E. eyanea. 



Immature Colouring. 



In reaching maturit\- there seems to be much the 

 same series of colour changes as is to be found in the 

 case of .E. eyanea, the next species. 



Variation. 



Besides considerable inconstancy in the size of the 

 insect, there is, as De Selys points out in the " Revue 

 des Odonates," ]x 118, great \-ariation in the size of the 

 anal appendages of the female. 



