80 



N. H. SWELLENGKEBEL AND J. M. H. SWELLENGREBEL DE GRAAF. 



External occipital hairs with 4 branches, internal ones with 3 branches or simple. 

 A pair of small fans* on thorax, with 10-14 leaflets, sometimes pigmented, no 

 serrate margin. Small fans on abdominal segment i, with 8-16 leaflets, usually 

 serrate, not pigmented. Complete fans on segments ii-vii, with about 18 leaflets, 

 pigmented, serrate near the tip, the latter long and pointed, sometimes ending 

 in a true filament. Shoulder hairs f with thick stem and numerous branches ; median 

 and internal one with stout roots which often unite into one. 



Fig. 3. Larva of N. annuUpes var. moluccensis : a, h, two types of 

 clypeal hairs ; c, occipital hairs ; d, shoulder hairs (right) ; e, f, 



leaflets. 



Breeds in all kinds of water, brackish or salt and fresh, running and stagnant, 

 clean and dirty ; also in artificial collections of water (coconut-shells, water in 

 native boats). 



* Fan — stellate tuft. 

 t Shoulder hairs = anterior thoracic haiip. 



