86 



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



In the Australian region of the Malay Archipelago, a larval variety of N. punctuhta 

 is commonly met with, bearing fans with non-serrate leaflets, no fans but cockades 

 on the 2nd abdominal segment, and a small fan with hair-hke leaflets on the 1st. 



Fig. 9. Larva of Myzomyia minima : «, clypeus ; 

 b, occipital hairs (left) ; c, leaflet from fan on 

 abdominal segment i ; d, leaflet on segment iii ; 



leaflet on segment vi. 



6. Difference between the Larvae of Myzorhynchus sinensis and IVI. barbirostris. 



In addition to Stanton's differential characters we noted the following, which 

 however cannot be used if the larvae do not show white spots on the dorsum of the 

 abdomen. But if these are present, they show in M. sinensis on abdominal seg- 

 ments iii, V, viii, in M, barbirostris on the segments iii and vi-viii but never on v. 

 N. annulipes var. moluccensis has abdominal spots like M. barbirostris. 



7. Abnormal Larvae of Myzorhynchus sinensis and IVI. barbirostris (fig. 10). 



In both species one of the median clypeal hairs may be placed in close proximity 

 to the neighbouring external clypeal hair, at the same time exhibiting on a shortened 



