626 THE HON. N. C. ROTHSCHILD ON [May 26, 



bristle, which is short, being about as long as the third post- 

 median bristle of this segment. The sternites of segments 3 to 7 

 have a row of 4 long bristles on each side, the basal sternite, 

 however, bearing but 1 bristle. 



Legs. — The mid and hind coxae are rather narrow and long, 

 both having a single bristle posteriorly at the apex. There are 

 no short spines on the inside of the hind coxa. The fore-femur 

 has on the outside 1 subapical bristle and 4 or 5 lateral ones. 

 The mid and hind femora bear 2 subapical bristles on the outside 

 and 1 on the inside. There are about 18 bristles on the outer 

 surface of the hind tibia. The hind tibia has 7 dorsal notches. 

 The longest dorsal bristle of this tibia is hardly twice as long as 

 the tibia is broad, the longest apical bristle being only about one- 

 third the length of the first hind tarsal-segment. The tibiae have 

 a long and a short bristle in most of the notches. The first 

 hind-tarsal segment is nearly as long as the hind tibia, the bristles 

 situated at its posterior side being rather long and very thin. The 

 thick apical bristles of this segment are short, the posterior one 

 being only one-third the length of the second segment and the 

 anterior one being about as long as the first segment is broad. 

 The fifth segment bears in all the tarsi 4 strong lateral bristles 

 and a subbasal pair which are placed on the ventral surface in 

 between the first lateral pair. 



Modified segments. — J . The large eighth sternite bears a row 

 of 5 long bristles on the side. The clasper (PI. XXYIII. fig. 1, CI.) 

 has a short rounded process (P) bearing two long bristles. There 

 is 1 long bristle at the insertion of the movable process (F). This 

 process is very large, being first nai-row and curved upwards and 

 then much widened and curved downwards. It bears a row of 

 long bristles at the ventral edge, a short, broad, and somewhat 

 twisted spine at the tip, an irregular double row of bristles on 

 the side and another row at the dorsal edge, the central bristles 

 of this dorsal row being flattened and lanceolate. The manu- 

 brium (M) is widest at the apex. The ninth sternite (IX. st.) 

 is likewise very peculiar. The internal ( = vertical) arm is 

 broadened at the apex, this widened jaortion being excised in the 

 usual way, as shown in the figure. The horizontal arm has an 

 almost straight dorsal margin, while the ventral margin is curved, 

 being evenly rounded in the distal third and bearing here a 

 number of bristles. This sternite has basally a lateral horizontal 

 projection crowned with a very dense brush of long thin 

 bristles, which are curly at the end, and among which is one long- 

 thick bristle. Beyond the middle of the ventral margin there 

 are 3 short, hook-like spines, and before the apex a large and a 

 small hooked spine, the large one apparently bifurcating at the 

 apex. The tenth segment is long, the sternite bearing two long 

 apical bristles on each side. 



Length : c? 3 mm. 



We have one c? from Temuco, Chile, ofi" Dromidops australis, 

 collected by Mr, D. S. Bullock in November 1906. 



