156 



A Monograph of Culicidae. 



The Larva. — The following details of the larva are taken from 

 Smith's Report : Length, 7-8 mm. ; slaty-grey to blackish in colour ;. 

 young and half -grown specimens pale grey or whitish, head pale 

 yellow and immaculate ; antennae long and slender, curved, 

 surface with many broad spines, with prolonged bases, giving 

 the organs a scaled appearance, lateral tuft of six to eight hairs, 

 medianally placed ; apex with three long spines, one very small 

 one and a small joint ; mentum broadly triangular, a large apical 



d Fig. 42. 



Larval characters of Janthinosoma sayi. nov. nom. 

 a, antenna ; b, siphon ; c, labial plate ; d, comb scales ; e, pecten scales (after Felt). 



eighth 



segment 



tooth, 13-15 on each side of it; combs of 

 forming a fringe of 6-8 scales, each with a long apical spine and 

 short lateral ones ; pectens of siphon with 3-4 spines only, each 

 with a broad base from which spring either on one or both sides 

 teeth of varied length ; anal gills long and thin, more than twice 

 as long as the anal segment. 



Synonomy. — Coquillett makes Say's musicus the same as 

 Wiedemann's posticatus. 



