228 A Monograph of Culicidae. 
mosquito.” They were all taken in February. Dr. Bancroft 
writes regarding this species as follows :— > 
‘‘ Although to be found all the year round, but always very 
scarce, will not bite. It is possibly out of its proper latitude. 
It breeds in fresh-water butts about houses and in fresh water.” 
Specimens have been kept alive for as long as five months. 
Specimens from Uganda have the abdomens very plain, there 
being apical yellow spots and traces of apical banding to the 
apical segments only. Dr. Low took them in a house. 
Additional localities.—Pretoria (Dr. Theiler); Lagos (Dr. 
Strachan), one g in December ; Zomba (Dr. Gray), in January ; 
Nigeria (Dr. Hanley), in August ; Dindings, Straits Settlements, 
in December ; Uganda (Dr. Low). 
The larva and pupa of C. tigripes. 
The larva is quite different to others of Culex type. It is 
10 mm. long and greyish-brown in colour; the head has large 

Fig. 120. 
Culex tigripes, Grandpré. 
a, Abdominal hairs of larva; b, of thorax. 
fan organs like a Megarhinus, a truncated clypeus and simple 
antennae ending in two spine-like bodies, one broader than the 
