PUPAL STAGES OF WEST AFKICAN CULICIDuE. 49 



The siphon is proportionately short, its length, as compared with the 

 abdomen, being as 2 to 3 ; it is over ten times as long as its own base. The 

 spines are darker and stronger, running for only ^ o£ the length ; the base 

 of the siphon is narrower, and it is generally less stout. 



The anal papillae are all equal, much pointed and slightly yellow in colour, 

 not hyaline. They equal the segment in length. The ventral beard is 

 longer than the papillae. 



Length of larva 3J mm., siphon IJ mm. 



Described from a single specimen ; pupa unknown. 



28. Myxosquamus paludosus, Graham. 



Lakva. 



Head rather small, not dark, but darkef than some species. Antennae 

 very long and thin, with a small plume of four (?) simple hairs, inserted 

 distinctly below the middle, with short and simple hairs on the end (PL Y, 

 fig. 16). Brush very large. The face carries long plumes of subplumose 

 hairs. Eyes large, and with the pigment spot not separated^ but adhering 

 to them. 



Thorax with the hairs of the anterior edge short on the sides, and only 

 subplumose— the middle ones are denuded ; the side plumes, however, are 

 fairly long and of quite plumose hairs. 



Abdomen with few hairs or plumes, and those are inconspicuous or 

 normal. The comb appears as a patch of three to four rows of minute scales. 

 8ub-siphonal plumes small ; only plumose at the base of the hairs. Anal 

 plume of fine simple hairs. 



Siphon rather short, its length, as compared with that of the abdomen, 

 being as 7 to 30 ; 3^ times as long as its base ; the spines are many and 

 close together, and run for | of the length ; single hairs are present laterally, 

 but much liable to denudation (PI. Y, fig. 15). 



The anal segment is short ; the papillae pointed, unequal, not hyaline, 

 dirty in colour, with the longer pair only slightly longer than the segment ; 

 there is a tuft of hairs, and other longer hairs on the dorsal edge ; ventral 

 beard thick, on about eleven black roots, considerably longer than the 

 papillae, and coming well over the ventral edge at the end. 



Larva nearly 6 mm. long. 



Pupa. 



With short trumpets, without plumes on the sixth segment. Anal plates 

 run at a sharper curve from the ribs, and no spine is present at the end of a 

 rib (PL Y, figs. 17 & 18). 



Length of thorax fully 2 mm. 



Described from one larva and one pupa. 



BULL. ENT. EES, VOL. I. PAKT I. APRIL 1 9 10. E 



