248 



The habits of both these species, M .barbirostris 

 and M. sinensis, sub-sp. nigerrimus,i\.xe very similar. 



The larvae are found in water with .much 

 aquatic vegetation — rivers, lakes, ponds, and 

 swamps. They are only caught singly, but are 

 generally widespread in their occurrence where 

 large bodies of water are present. 



Larva of N. fuliginosus. — Antenna without 

 large branched hair. External pair of frontal 

 hairs branched (branches usually six in number). 

 Palmate hairs on second to seventh abdominal 

 segments. Leaflets of palmate hairs with very 

 marked ' shoulder ' at origin of terminal filament. 

 Terminal filament from one-half to two-thirds the 

 length of basal portion. Head of larva with dis- 

 tinctive markings. 



Larva of M. culicifacies.- — Antenna without 

 large branched hair. Frontal hairs all unbranched. 

 Palmate hairs on first to seventh abdominal seg- 

 ments, and a pair of fairly developed ones upon 

 the thorax. Palmate hairs with terminal filament 

 nearly as long as basal portion. Head with 

 markings. 



Larva of M. listoni. — Antenna without' large 

 branched hair. Frontal hairs simple. Palmate 

 hairs on all segments, and very well-developed 

 pair on thorax. The palmate hairs in this species 

 are very large. The terminal filament is nearly 

 as long as basal portion. 



Larva of Ce. pulcherrima. — Antenna without 

 large branched hair. Outer pair of frontal hairs 

 branched (six branches). Palmate hairs on second 

 to seventh abdominal segments. Filament of pal- 

 mate hair nearly as long as basal portion. Head 

 markings present. 



