232 [October, 



of the pleura. The episterum of the metathorax is without bristles, the sternum, 

 however, bears one small one. The epimerum of the metathorax has two rows of 

 bristles, each containing seven or eight, the anterior row being more or less 

 irregular. 



Abdomen. — The tergites bear one row of bristles, except the first, which has in 

 both sexes a number of additional bristles on the back, the number of bristles in 

 the row being usually sixteen on the anterior segments and twelve on the posterior 

 ones, on the two sides together. The seventh tergite has both in $ and ? one 

 long apical bristle accompanied by two or three small hairs, some of our ? % 

 having, however, two long apical bristles on each side. The basal sternite has no 

 bristles, apart from a ventral pair of short ones. The stcrnites of segments three 

 to sixth have on each side a row of three or four bristles in the £ and four or five 

 in the $ , the sternite of the seventh segment bearing in the $ also three or four 

 bristles, while there are six to eight on this segment in the <j? • The seventh sternite 

 o( the $ is sinuate (Fig. 2), the outline of the segment not being quite constant. 



Legs. — The hind femur has posteriorly on the outer side three or four subventral 



bristles, and one or two more further basad, there being a row of seven to nine on 



the inside. The bristles of the tibiro are strong. The hind tibia has four pairs of 



dorsal bristles situated in notches, beside the apical bristles the shorter (== outer) 



bristles of these pairs being short and blunt. The first hind tarsal segment bears 



three or four pairs of stout lateral bristles, inclusive of the apical bristles, there 



being further basad also a number of small bristles. One of the apical bristles of 



the first hind tarsal segment reaches a little beyond the apex of the second segment, 



while the longest apical bristle of the second segment extends to the centre of the 



fifth or a little beyond. The fifth segment bears in all tarsi two stout spines 



ventrally at the apex, the longer one being placed in the centre of the apical edge 



and the other a short distance away from it towards one side. In the midtarsus 



this segment is as long as the second. The proportional lengths of the tarsal 



segments are : — 



1st, 2nd. 3rd. 4th. 5th. 



Midtarsus 22— 24 ... 22—24 ... 11 ... 8 ... 22-24 



Hind tarsus 42-49 ... 28—32 ... 13—16 ... 9 — 10 ... 23—26 



Modified segments.— $ . The eighth sternite of the abdomen bears a row of 

 about ten bristles, besides a number of shorter ones, the ventral apical lobe being 

 densely covered with bristles (Fig. 1). The clasper is not separated by a suture 

 from the dorsal portion of the ninth tergite. The manubrium (M) is large, being 

 abruptly curved upwards. The large flap (Pi) of the clasper bears numerous hairs 

 on the lateral surface and is densely hairy at the dorsal and apical edges, there 

 being no hairs, however, at the ventral edge. This flap has, in addition, two short 

 spines, the upper one of which is obtuse, being very strongly chitinized. The 

 second process (P-) is long and slender, being curved upwards at the apex and 

 bearing a few small hairs. The third process (P a ) is broad, its dorsal edge being 

 somewhat incurved, while the ventral and apical edges are rounded and provided 

 with long thin bristles. The ninth sternite (IX st.) is very peculiar. The ventral 

 (= horizontal) portion of this sclerite is widest proximally to the centre and 

 thence gradually tapers almost to a point, the apex being curved downwards. The 

 tenth tergite bears dorsally on each side a row of five or six bristles, of which the 

 last one is very thick. 



