1906. j 223 



Legs: — The fifth tarsal segment is shorter than in trichosa, being less than 

 three times as long as broad. The proportions of tlie segments are : — 



let segt. 2nd sogt. 3rd segt. 4th segt. 5th segt. 



Mid-tarsus 19 17 12 8 19 



Hind-tarsus 35 22 13 9 19 



Modified segments : —The e\g\\ih.ievg\teheQ.vs, from four to sis short bristles 

 above the stigma, and a row of from eight to twelve from the stigma downwards. 

 There are also six moderately long bristles and many short ones at and near the 

 apical edge. The eighth sternite is rounded at the apex, bearing at the apical edge 

 about six bristles, of which the proximal one is the longest. Length, 3'3 mm. 



We have two ^ ? from Canis sp., taken by Lord Osborne Beau- 

 clerk at Ancouza, in Central Asia. 



Ch^topstlla lasius, spec. nov. (Figs. 2, 3). 

 ? . A very distinct black species. bearins: long black bristles. 

 Head .—There is a row of four bristle* before the eye. The occiput has laterally 

 two hairs behind the base of the antenna, three bristles in the centre, and a sub- 

 apical row of about ten bristles. The labial palpus consists o*^ five seg ^ents. The 

 frons is rounded, being feebly tuberculate. 



Thorax : — The pronotum bears one row of bristles, the mesonotura and meta- 

 notum two rows, the metanotum having additional bristles in front of the two rows. 

 There are in all about 14 bristles on the mesosternite. The sternum of the meta- 

 thorax bears two bristles, the episternum 7 to 10, while there are on the epimerum 

 a regular posterior row of 5, and two irregular rows of 9 to 10 together. The 

 hinder edge of the epimerum is rounded from the stigma to about the centre, and 

 then nearly straight, being slightly incurved, the apical lobe not projecting so far 

 backwards as in Ch. trichosa, Koh. (1903). 



Abdomen : — The tergites 1 to 7 bear each two rows of bristles, the first two 



tergites having some ad- 

 ditional bristles. The 

 tergites 2 to 7 are very 

 narrow, and, being pro- 

 duced backwards behind 

 the stigma, have the ap- 

 pearance of a stocking 

 =s-(fig. 2). The anterior 

 row of bristles is incom- 

 ^'S^- ^'^^- pleteonsegment3 5to7, 



some dorsal bristles being missing. The sternites are widely separated from the 

 tergites and from one another, the first two being the largest. There are a few 

 lateral and ventral bristles on the first sternite, the second sternite bearing a row of 

 three long bristles and several small ones, there being in addition some small hairs 

 which stand further forwards. The sternite of segments 4 to 6 has a row of at least 

 three long bristles and some small ones. These sternites appear, like that of the 

 seventh segment, to be almost completely divided in the mesial line into two separate 

 sclerites. The seventh sternite is emarginate posteriorly (fig. 3), 



