540 Hon. N. G. Rothschild on new 



of the hind tibia and hind tarsus also arc longer than in 

 Ct. caucasica. 



The clasper (CI) of the <S (fig. 1) is produced distally into 

 a very long and straight process, P 2 , which is longer than 

 in any of the allied species. The dorsal apical angle of the 

 clasper is rounded (P 1 ) and hears three long bristles and 

 several small ones. The movable exopodite F is as large as 

 in Ct. caucasica. Its ventral margin is distally somewhat 

 concave. The ninth sternite (ix.st.) is less obtuse and 

 bears more bristles than in Ct. caucasica. The seventh 

 sternite of the ? (PI. XIV. fig. 2, vn.st.) is bisinuate, the 

 lower sinus being very shallow. The apex of the segment is 

 divided by these excisions into three lobes, the ventral lobe 

 hardly at all projecting, the second one being broad, short, 

 and strongly rounded, and the third much narrower and 

 longer than the second. The ventral row of bristles of the 

 eighth sternite (vm.st.) ends with one short stout bristle. 



A small series of both sexes from near Djarkent, Semi- 

 tchenskoi, East Turkestan, November 25th and December 5th, 

 1912, off Meriones tamaricinus. 



2. Neopsylla teratura, sp. n. (PI. XIV. fig. 3.) 



^ 5 . — A very near relative of N. bidentatiformis, Wagn. 

 (189 5). The pronotum, in the J, bears on each side only 1 

 or 2 bristle's in front of the postmedian row, and in the ? 

 4 or 5, instead of a more or less complete second row. 



The eighth sternite of the $ has an apical brush of 

 bristles, the long bristles being of nearly even width from 

 the base to near the apex. The clasper (CI) closely resembles 

 that of N. bidentatiformis, but the process P 2 (fig. 3), as well 

 as the movable process F, are narrower. The ninth sternite 

 (ix.st.) has a very characteristic armature. The horizontal 

 arm bears distally two rows of stout, short, spine-like 

 bristles. One row is ventral and placed on the outer side, 

 the other being situated along the centre of the inner surface. 

 The ventral spines are strongly curved inwards and back- 

 wards, particularly the proximal ones. In bidentatiformis, 

 of which Professor Wagner has kindly given us a $ , there 

 is only one row of spines, placed at the ventral margin, the 

 spines being almost straight (fig. 4). The manubrium (M) 

 of teratura is straight, with the extreme tip turned upwards. 

 In the $ the apical margin of the seventh sternite is very 

 slightly incurved, with the upper angle distinct but rounded. 

 The eighth tergite bears a submarginal row of 8 bristles, the 

 row being sometimes continued proximally by some small 



