(94) 



grade and vary very mnch in length. The first type of hair is a simple bristle, 

 as in other insects— a hair gradnally tapering in diameter and pointed at the 

 end (text-fig. ] ). Snch normal hairs are present on the central portions of the 

 abdominal steriiites and the inner side of the tibiae. The second type of hair tapers 

 in diameter from the base to the apex, but the ape.x is trnneate and terminates in 

 several points or teeth (text-fig. 2). These tapering trnneate hairs are characteristic 

 of the basal abdominal tergites, where they are longer in the luale than in the 

 female ; bnt they also occur in other situations. The third type is cylindrical, 

 thicker than the second, and bears distinct ridges ; the apex is truncate and 

 fnnn el-shaped, with prominent teeth (text-fig. 3). This cylindrical tyi)e of hair is 

 prevalent on the edges of the prothorax, and on all the other oxplanate portions 

 of these iusects, but is also found elsewhere. The fonrth tyi>e of hair is curved, 

 with the convex side dentate, and has a widened and truncate apex (text-fig. 4). 



KiG. 5. 



Fig. G. 



FlQ. 7. 



Fig. 8. 



Figs, 5 and 6. — Clinocoris cotumbariun ^, 

 „ 7 „ 8. — ,. foeditfi ^. 



This type of hair occurs chiefly at the sides of the body, where it is associated with 

 type 3. 



The eighth segment of the male consists of two unsymmetrical chitinised 

 plates, which are closely applied to one another and fused basally at their lateral 

 edges. Between these the penis reposes when at rest. 



The dorsal plate is both larger and less unsymmetrical than the sternite. The 

 shape of this sclerite is best seen from the figure (text-figs. 5 and 7), the basal portion 

 being covered by the seventh tergite in the natural state ; the apex of the seventh 

 tergite is scooped out on the left side, where the tip of the penis is held at rest. 

 On the apical portion there are a number of long hairs of the types 3 and 4 

 described above. The eighth sternite is most remarkable for its complete want of 

 symmetry. It is triangular in shape, and in a dorsal view entirely covered by the 

 tergite except at the base on the extreme left. The sliajie and structure of this 



