4 THE ENTOMOLOGIST. 



with thif? near the apex, and two more near the stigma. The meta- 

 notum bears two heavy obtuse apical spines on each side. The epi- 

 merum of the metathorax bears a vertical row of from two to four 

 hairs near the base, three hairs from the stigma downwards, and one 

 at the apex. The first and second abdominal tergites have one or two, 

 and the third one short stout apical spine. The abdominal tergites 

 bear two rows of hairs, the anterior one being restricted in the male 

 to the dorsal side of the segment. The stigma of the middle segments 

 is somewhat anterior to the first row of hairs. The seventh tergite of 

 the male bears one very long apical bristle. Below this there is a very 

 short but rather stout hair, and above the bristle there is another 

 stout hair, which is not quite so long as the sensory plate (pygidium). 

 In the female the seventh tergite bears two long bristles, and above 

 them a short one. Abdominal sternites two to seven bear on each 

 side in the male two to four hairs, in the female three to five, besides a 

 few very short ones. The hind femur bears on the inner side sis or 

 seven hairs. There are also several hairs on the mid femur. The 

 hind tibia is on the outer side furnished with a row of hairs situated 

 near the dorsal bristles, and with a row of four further towards the 

 ventral side. On the ventral edge (anterior in the slide) there are two 

 or three pairs of thin bristles. The longest apical dorsal bristle of the 

 fore tibia reaches nearly to the apex of the second tarsal segment, and 

 the longest ventral spine to the base of the same segment. Both the 

 ventral and dorsal long apical bristle of the second hind tarsal segment 

 reach to the base of the fifth. The fourth segment of the fore tarsus 

 is very short and broad. The eighth abdominal tergite of the male 

 bears between the stigma and the hinder vertical edge a number of long 

 bristles, which are placed as shown in the figure (fig. 8). The eighth 

 sternite of the male (fig. 5) is very small, and has at the apex on each 

 side an elongate process (A), which bears a bristle at the end. The 

 process (P) of the clasper bears three hairs at the top. The finger 

 (F) is (on the anterior side) straight from the apex to near the middle. 

 On the hinder (ventral) side there are four hairs at the apex and two 

 small ones above the middle. The ninth sternite of the male is shaped 

 as in londiniensis and fasciatus, being ventrally deeply sinuate. Proxi- 

 mally of the sinus there are two rather stout spine-like bristles besides 

 two hairs. The distal portion of the ninth sternite is covered with very 

 short spine-like hairs. The seventh sternite of the female (fig. 6) is 

 ventrally sinuate on each side, the lobe above the sinus being trun- 

 cate. The eighth tergite of the female bears two long bristles below 

 the stigma, and the process articulated with the anal segment is almost 

 conical in shape, and nearly three times as long as it is broad. 

 Length : <y , 3-2 mm. ; ? , 2-4 mm. 



One male and four females were secured at Bir Victoria in 

 March, 1903, from Gerbillus tarabuli and Pachyuromys dupresi 

 natronensis. 



