368 
A Monograph of Culicidae. 
narrower than the second posterior, its base nearer the base of 
the wing, its stem less than one-third the length of the cell; 
Fig. 160. 
Culex nigrocostalis . 3 . n. sp. Head. 
stem of the second fork-cell about two-thirds the length of the 
cell ; posterior cross-vein longer than the mid, sloping backwards, 
and about two and a half times its own length distant from it. 
Fig. 161. 
Wing of Culex nigrocostalis . ?. n. sp. 
Length .—3 mm. 
£ . Like the $ , but the abdomen more prominently banded. 
Palpi and proboscis deep brown, the former acuminate and 
