272 



[December, 



Similar spines occur (1 on each side) on the posterior edge of abdominal 

 tergites 1—4 inclusive. 



Metathoracic epimeron with bristles '^, 3 (octavii 1, 3). 



Abdomen. — Two rows of bristles on all the tergites of first seven segments, one 

 on sternites. On tergites 3 and 6 the ante median row is irregular. 



Tergites 



Ante median row . 

 Post median row . 



Teeth 



Ante median row . 

 Post median row . 



Teeth 



Sternites — 



ro-^si . . 

 octavii 



Antepygidial bristles, 1 long, accompanied by two very 8h;)rt ones. 



Legs. — In numse there is an extra bristle between the second and third, and 

 again between the 5th and 6th pairs of dorsal bristles on the hind tibiae. In octavii 

 the extra bristles are absent or there is at most one between ihe second and third 

 pairs. In rossi one occurs between the second and third, and between the 4th and 

 5th pairs respectively. With numas, rossi also agrees in having 8 hairs on outer 

 side of hind tibia; {octavii, 4 or 5). 



Hind coxae with 4 — 5 short spines on inner apical area. 



The relative lengths of the tarsal joints are as follows. In measuring 5 the 

 claw is omitted : — 



Joints 



Mid tarsus .., 

 Hind tarsus .. 



Stylet rather more than 3 times as long as broad. 



The 8th tergite has the sf igmatic opening large and well exposed. Thence its 

 posterior edge descends somewhat abruptly to a rounded angle. Immediately 

 below this the edge is twice slightly sinuated. Afterwards it is gently curved. 

 On this ventral portion there is an irregular row of stout spines. About six 

 similar occur on the external lower surface of the tergite. In the shape of this 

 tergite rossi resembles octavii, but the region is more spinose. The 8th sternite 

 is wedge shaped as in nmme. 



The 7th sternite is produced into a short lobe ; numse at the same point has 

 a distinct rounded notch, while the posterior edge of octavii is quite simple, 

 (see figs. 1, 4). 



