12 NEUROPTERA. 



Sub-imago unknown. The description is made from living 

 specimens from Prussia : the type of Stephens' C. chirono- 

 formis, has been compared with them and is identical ; the 

 specimens of Curtis I have not seen, but the description is 

 not discordant. C. interrupta, Stephens, 62, 7, is wanting 

 in Stephens' collection j it is a female, and should probably 

 be referred here. 



Habitat London, Bath (Stephens). 



A male sub-imago from England probably belongs to this 

 or the preceding species ; according to the colouring it agrees 

 with C. halterata, yet 1 received it with the described speci- 

 mens of C. macrura, 



3. C. DiMiDiATA, Stephens, 61,2, $ imago; C. pemiataj 

 Stephens, 61, 5, $ imago; C, brevicaiida, Stephens, 

 61,3, ? sub-imago; ? C. minima, Curt. Phil. Mag. 

 122, 3. 

 Imago. Head and thorax brown (when alive violet- 

 grey) ; antennae white ; mesothorax anteriorly steeply 

 sloping; abdomen grey-brown, the terminal half 

 white; caudal filaments white; legs white; the ante- 

 rior legs grey ; wings narrow, hyaline, the costal 

 veins black-brown to near the apex, the basal half 

 darkest. 

 Length of the body $ 1|, 9 1^ hues; expansion of the 



wings ^ 3|, 2 5 lines ; setae, ^ 6, 2 1| hues. 



Sub-imago similar throughout to the imago ; the colours 



duller; the wings dim greyish-white, darker towards 



the base. 



This species is readily distinguished by the white colour of 



the tip of the abdomen, which occupies 3 or 4 segments, and 



is strongly contrasted with the dark colour of the base. The 



description is made from living specimens from Prussia, 



