Pyrrhosoiita. 259 



1.35 the legs were out, and the insect was still, except 

 for occasional twitchings of the legs. Now occurred the 

 usual rest, in this instance of about tweh'e minutes only, 

 all parts being out except the last two or three 

 segments of the abdomen. The head and thorax were 

 not thrown back, as in the case of Libdlula qnadri- 

 maculata, and judging from several emergences observed 

 since, this is not done in the case of P. fiyi/ipliulu, but 

 head and thorax are kept erect. Whether this is so 

 with all Zygopterids remains to be proved. At 1.47 the 

 insect began to wake up, bent forward, and used its legs 

 to find a hold. At 1.52 it began to pull out the rest 

 of the abdomen, which by 1.55 was quite free. The 

 A\ings began then slowl}-, and quite imperceptibl)-, to 

 expand from the base forward, the tips remaining opaque 

 and crumpled till last. At 2.5 the wings were as long as 

 the body. Continuing to grow, at 2.17 they exceeded the 

 length of the bod\' b}' about Hn., and appeared to be of 

 full size. They were then yellowish, and somewhat 

 opaque. So far, the body had increased but little in 

 length since emergence. The abdomen kept swaying 

 from front to back, sometimes striking back sharply 

 against the wings. The swayings and jerkings grew 

 less till they practically ceased at 2.30, when the abdo- 

 men had increased decidedly in length, but was not so 

 long as the wings. At 2.50 the body was about 4in. 

 longer than the wings, and was pale yellowish-brown in 

 colour, but the crimson colouring had begun to appear 

 dorsally, especially on the basal segments. The wings 

 were fairly transparent, the pterostigma being yellow. 

 The yellow lines on the thorax were bright ; the legs 

 were palish. When left at 2.50 the Dragonfly was 



S 2 



