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A. INGRAM AND J. W. SCOTT MACFIE. 



and internal to this a tuft, of about 7 delicate hairs. The 5th segment bears similar 

 setae to those on the 6th segment. On the posterior margin of the 4th segment there 

 are two tufts a little internal to the angle, the outer composed of about 6 hairs and 

 the inner of about 10. On the 3rd segment there are two similar tufts, the outer 

 one of which is however much reduced. On the 2nd segment there are two delicate 

 dendritic setae with long peduncles. The dendritic setae on the 1st segment are 

 well developed. 



The pupal trumpets have a smaller aperture than those of C. fatigans. 



Culex thalassius, Theo. (fig. 9). 



The paddles are broad, with a well marked midrib, and an external thickening, but 

 without a fringe. There are two small terminal setae, the larger of which is sometimes 

 bifid. On the 8 th segment there is a large tuft of 10 to 12 branched hairs at the 

 posterior angle, and a small double hair near the external root of the paddle. On the 

 7th segment there is a small tuft of about 7 delicate hairs close to the posterior angle, 



Fig. 9. Culex thalassius, Tueo. 



and a little above this a larger tuft of 4 to 6 stout branched setae. On the 6th segment 

 there is at the posterior angle a delicate triple or double hair, but the most con- 

 spicuous seta lies a little internal to this on the posterior margin, and is long, strong, 

 bifid, and pubescent or subplumose. The setae on the 5th segment are similar to 

 those on the 6th. On the 4th segment the seta at the posterior angle is sub-divided 

 into a tuft of about 5 delicate hairs, and the conspicuous seta internal to it is sometimes 

 triple. On the 3rd segment the tuft near the posterior angle consists of about 6 

 elements, but the stout seta internal to it is no longer conspicuous. On the 2nd seg- 

 ment there is a small dendritic seta. The dendritic seta on the 1st segment is large 

 and shows about 8 primary divisions. 



Culex tritaeniorhynchus, Giles, (fig. 10). 



The pupal paddles are similar to those of C. thalassius ; they are without a marginal 

 fringe, and their terminal setae are paired but very small. The more conspicuous 

 abdominal setae are as follows. On the 8th segment there is a lateral tuft of about 

 6 branched hairs. On the 7th segment there is a minute tuft in the posterior angle 

 and just above it a larger tuft of 4 branched setae, and on the posterior margin about 

 half-way between the angle and the mid line there is a tuft of 4 hairs. On the 4th, 



