296 British Dragonflies. 



much backwards, and covered with rough points ; hind- 

 margin concave. Protliorax, shape much as in E. cy- 

 .athigerum, dark lateral corners. J\Ieso-thoracic spiracles 

 dark, exposed in empty skin. Thorax covered with 

 dark points. Wing-cases about 4mm. long, extending 

 nearly to the fourth segment. Legs very pale ; apical 

 end of distal joint of tarsus darker ; length of fore-legs 

 about 5mm., of mid-legs 5*5mm., of hind-legs 7mm. 

 Abdomen pale ; an indication of a paler line down 

 centre, with a very slightly darker margin, which is a 

 little more pronounced at the sutures ; there are indi- 

 cations of a slight spot on each segment in the 

 browner line outside the pale mid-dorsal one ; near 

 each lateral carina is a line of dark spots at the 

 sutures ; a line of points round the hind margin of the 

 tenth segment. Caudal lanielUv very short, length 3mm.; 

 the right hand one was lost ; possibly the other two 

 are newh'-grown ones, but they hardly appear to be 

 so, if not the size will distinguish the species from 

 other Agrions ; pointed, narrow, width about 4- of length ; 

 mid-rib stout, branches few and not easily seen ; mar- 

 gins spined as far as cross-line, hair\' thence to the 

 tip ; cross-line about a third of length from tip. [From 

 a New Forest nymph taken amongst some Platycneviis 

 pejiuipes, but unrecognised. It produced a male imago 

 on June 23. The description was therefore made from 

 an empty nymph-case, which was very transparent, and 

 of a pale brown colour.] 



Habits. 



A. nierciiriale in the New Forest flies low and slowly 

 amongst the herbage along the margins of streams or 

 over boggy ground near them. 



