76 CULICID^ [CH. 



3. Tribe. Culicinae 



f Culicinae "^ 



= Metanotopsilse ■<. Aedinae y of Theobald. 



I Uranotaeninae J 



4. Tribe. Sabethinae 



. , rTrichoprosoponinse 'i , ^ 

 = Metanototnchae <j^ Dendromyinae / °* Theobald. 



Sub-family. CHAOBORiNiE. (Midge-like mosquitoes without piercing 



proboscis.) 

 = Corethra. Meigen. 

 = Sayomyia . Coquillet. 



Sub-family. Dixin^se. (No piercing proboscis.) 



Tribe i. Anophelin^e. 



Female palps as long as the proboscis. Male palpi clubbed. 



Scutellum simple and bar-shaped. 



Larva without respiratory tube. 



According to Theobald and others adopting his views the 

 Anophelinae consist of some 20 or more genera distinguished 

 by differences in scale structure. The general nature of this 

 subdivision and the more important genera are shewn in the 

 following scheme : 



I. No true scales^ on either thorax or abdomen. 



a. Upright head scales are narrow and rod-like Stethomyia. Theobald. 

 h. Upright head scales are of ordinary expanded type, 

 (a) Wing scales moderately broad, widest im the middle. 



Without prothoracic tuft .. .. Anopheles Meigen. 



With prothoracic tuft . . . . Paiagiamyia. James. 



(6) Wing scales narrow, widest towards free end 



Myzomyia. Blanchard. 

 (c) Wing scales inflated . . . . . . Cycloleppieron. Theobald. 



II. No true scales dorsally on either thorax or abdomen, 

 but there is a tuft of scales ventrally on the penultimate abdo- 

 minal segment. Myzorhynchus Blanchard 



^ A very useful distinction has been made by James between true and false 

 scales. True scales, besides being broader, have striations which can readily 

 be counted. False scales, which correspond roughly to the hair-like scales of 

 Theobald, shew only indistinct striations which are too indefinite to be counted. 



