THE DRAGONFLIES OF EPPING FOREST IN 1907. 



275 



from May 11th, when it was in a very immature state, until 

 July 21st. 



(2) Agrion puella was on the wing longer than in previous 

 years. Specimens began to be taken on June 9th, and an old 

 worn female, with about half of the abdomen thinly coated with 

 dry mud, was obtained as late as August 25th. On July 7th a 

 male was taken while preying upon a small dipteron ; a wing 

 recovered from the dragonfly's jaws was examined by Mr. E. E. 

 Austen, who identified it as belonging to one of the Limnobiidse, 

 Erioptera Jiavescens. 



(3) Ischnura elegans. — This was probably the commonest 

 Agrionid, and its season was observed to extend from June 9th 



SYMPETRUM SANGUINEUS!, ab. 



to September 17th. Var. infascans was obtained on June 16th 

 and July 14th — three specimens in all. 



(4) Enallagma cyathigerum. — The distribution of this species 

 was more widely extended than is usually the case. The first cap- 

 ture was made on June 9th, and the last on September 1st. Blue 

 females were taken singly on July 7th and August 24th and 25th. 



(5) Cordulia cenea. — A few specimens, including a female, 

 were taken on June 9th and 16th. The males were somewhat 

 smaller than those taken in 1906, although they were still of 

 exceptional size. The largest measured 50*5 mm. in length and 

 70'5 mm. across the hind wings, and the smallest 48'5 mm. by 

 68 mm. The length of the female was 51 mm., and the expanse 

 72 mm. 



(6) Brachytron pratense. — A fine male was secured on June 

 16th, some miles away from the locality where the female was 

 taken in 1906. No other specimens were seen. 



(7) Libellula depressa was met with on one date only (June 

 16th), when a male was taken without a trace of blue powder on 

 the abdomen. 



