46 W. WESCHE THE LARVAL AND 



Length o£ thorax, less than 2 mm. 

 Described from two larvae and two pupa?. 



[Larvae found in some water that had collected in an empty Portland 

 cement barrel in July. — W. M. G.] 



54. Culex pullatus, Graham. 



Larva. 



Head fairly broad : at the eyes, nearly as broad as the thorax. Antenna 

 Avith large plume of plumose hairs ; the distal joint black, and carrying four 

 strong simple hairs and a short spine at its tip ; the spine is very liable to 

 injury. Mouth-parts very hairy. Face with usual plumes. 



Thorax much the same as in Culex albovirgatus, Graham, but no stellate 

 hnirs have been detected. 



Abdomen rather long, wdth the third to the sixth segments carrying short 

 lateral plumes of simple hairs (4 to 6). Sub-siphonal plumes rather large, 

 and the root rather prominent ; siphonal plumes also well marked. Anal 

 plume consisting of few hairs, and these appear simple (difficult to see). 

 Combs easily seen as dark scales, sixteen in number, the four posterior in a 

 row and longer than the others. 



Siphon nearly as long as the abdomen, very long and tapering, nearly 

 thirteen times as long as the base. The spines are comparatively rather 

 long at the base, and run for |- of the length, but are few and scattered. 

 The siphon is otherwise bare, except for very minute pubescence. 



Anal segment longer than broad, in the proportion of 20 to 17 ; papilla? 

 •equal in size, hyaline, slightly longer than the segment, and with sharply 

 pointed ends. Long plumose hairs are present on the dorsal edge with the 

 sockets much chitinised ; the sockets of the ventral beard are also very 

 evident ; the latter is about as long as the papilUie {Pi. I, fig. 7). 



Length of larva 4 mm., siphon 3^ mm. 



Several larva? were covered with a parasitic growth, vorticell?e, etc. 



Pupa. 



Furnished with long thin trumpets, which, like many others, are darker at 

 the base ; hairs at base of thorax similar to those of Culex qlbovirgatus. 

 Constriction at head marked in some pupae. The small plume on the last 

 segment consists of plumose, not branched hairs (PI. I, figs. 8 & 9). There 

 is also a plume (simple) on the sixth segment. 



Thorax of pupae under 2 mm. at greatest length. 



Described from seven larvae and four pupae. 



[Larvae found in borrow-pits along the course of the railway. The species 

 is plentiful from June to the middle of August. The colour varies 

 <3onsidQrably.-— W. M. G.] 



