PROM THE society's GARDENS, 263 



The gonopods measure '2 of a millimetre in length and '09 wide, 

 each with a strong chitinons external margin (text-fig. 4). 



Chcetotaxy. Male. — Remarkable for the presence along the 

 ^abdominal tergites of a segmental series of perfectly straight 

 transverse rows of closely placed spines — short, thick, and dark 

 brown in colour. Head : (Several well-spaced haii-s on the 

 chitinous circle around the mouth. Dorsal surface : hairs 

 arranged as in the text-figure. Ventral surface : a stout hair 

 on each side at about the level of the postaxial margin of the 

 antenna. Thorax : A stout bristle on each side of the pronotum. 

 The usual mesothoracic bristle ; between it and the spiracle on 

 each side three small spiny hairs. Two spines on the hind 

 margin of the metanotum. Abdomen : The rows of modified 

 •short spines in straight alignment on the dorsal surface are 

 ^iven in the following table : — 



Segment 1 2 



„ 2 2 



^ { 5 



5 |l^ 



" ^ { 9 



7 16 



On the tergum of segment 8 are two bristles, while aci'oss 

 the tergvim of the terminal segment is a row rather difficult to 

 observe of eight or nine small hairs which connect up with two 

 small groups of hairs, one on each pleurite. On the pleurae of 

 each segment, dorsally, numerous scattered lanceolate spines. A 

 pair of small hairs at the tip of the genital papilla. Other 

 hairs as in text-figure 3. On the ventral surface the spines are 

 mostly lanceolate in shape, more widely spaced and fewer in 

 number, arranged in six rows. In the first and second there 

 are four ; in the third, eight ; in the fourth, nine (the two 

 middle ones being longest) ; in the fifth, twelve (the four middle 

 ones being longest) ; in the sixth, ten (the four middle ones being 

 longest and the lateral ones irregularly arranged). On the 

 sternum of segment 8 there are two long liristles and a lanceolate 

 spine on the inside of each pleurum. 



Ohmtotaxy. Female. — Head : As in the male ; but the hairs 

 on the dorsal surface are stouter and longer. Thorax : As in 

 the male. Abdomen : Both dorsal and ventral surfaces covered 

 with a large number of stout lanceolate spines arranged in no 

 definite pattern or order. On the tergum of the eighth segment, 

 somewhat apart from the others, are two extra long hairs. On 

 the eighth sternum, in the middle, just before the gonopods, are 

 four elongate bristles in two pairs. Between the two couples is 



