177 



five-jointed in ? (M. piirpureus only four). Readily 

 recognized : (i) by their large size, often called 

 ' elephant mosquitoes ' ; (ii) by their brilliant 

 metallic colours ; (iii) by a caudal tuft of hairs on 

 each side of the abdomen ; (iv) by the long and 

 curved proboscis ; (v) head is clothed with flat 

 scales only (Fig. 48). 



They may be found resting on the trunk of 

 trees in the forest, also in houses in the bush. 

 Species, about six. 



Genus 2. Toxorhynchites. — Palpi much shorter 

 than proboscis in ? , three-jointed. Supernumerary 

 cross-vein nearer the apex of the wing than the 

 mid cross-vein. Species, four. 



Sub-Family Culicina 



First sub- marginal cell equal to or longer 

 than the second posterior cell. 



Genus I. Janthinosoma. — Hind legs densely 

 scaled, giving a characteristic appearance. Species, 

 five. 



Genus 2. Psorophora. — Characterized by (i) 

 great length of ^ palpi, five-jointed; (ii) densely 

 long scaled legs ; (iii) posterior cross-vein a little 

 nearer the base than the mid ; (iv) proboscis 

 curved in 9 . Species, four. 



Genus 3. Mucidus. — Easily recognized by 

 their curious mould)^ appearance. Posterior cross- 

 vein nearer apex of wing than mid. Wing scales 

 large, pyriform, parti-coloured. Head and thoracic 

 scales long and twisted, expanded at the apex. 

 Legs densely scaled with projecting scales. Species, 

 five. 



N 



