80 



A. INGRAM AND J. W. SCOTT MACFIE. 



triple hairs. The 6th segment has at each posterior angle a strong bifid seta, on its 

 posterior margin a number of simple and one pair of bifid setae, and a few small 

 hairs further forward. The 5th segment has a single stout hair at the posterior 

 angle and a number of small hairs near the posterior margin, one of which is larger 

 than the others. The setae on the 4th segment are similar to those on the 5th, but 

 the long hair is more highly developed. On the posterior margin of the 3rd segment, 

 in addition to small hairs, there are on each side of the mid line a double or triple 



Fig. 3. Stegomia metallica, Edw. 



and a long simple seta. On the 2nd segment these setae are more highly developed 

 and the inner one is composed of four branches. All these setae on the 2nd to the 8th 

 segments are more highly chitinised and better developed than those of S. luteocephala. 

 The dendritic setae on the 1st segment are well developed and have about a dozen 

 primary divisions. 



Stegomyia simpsoni, Theo. 



The paddles are broader than those of the two species just described and show a 

 distinct notch at the point where the midrib ends ; they have a slight fringe ; the 

 midrib is well- developed, and they carry the usual long terminal seta. On the 8th 

 segment there is a small tuft at the posterior angle, some of the hairs of which are 

 subplumose, and a single or bifid seta internal to it. The 7th segment bears a few 

 quite small setae, mostly at its posterior margin, and at the posterior angle two larger 

 setae, one of which is larger and stronger and is situated a little anterior to the other. 

 The 6th segment shows similar hairs and one strong seta a little above the posterior 

 angle. On the 5th segment the small hairs are mostly bifid and sometimes triple, 

 the strong seta above the posterior angle is present, and in addition there is a long, 

 strong seta on the posterior margin a little internal to the angle. The 4th segment 

 bears similar hairs, but the strong seta above the posterior angle is smaller, and the 

 long seta internal to the angle is more highly developed. On the 3rd segment the 

 seta above the posterior angle is reduced still more, and on the posterior margin 

 internal to the angle there is a small tuft and then a seta of moderate size. On the 

 2nd segment there are a few simple and divided hairs, none of which is specially 

 developed. The dendritic hairs on the 1st segment are well-developed and show 

 more than a dozen (about 16) primary divisions. 



