SOME NEW CHINESE FLEAS. 



377 



apex of the fourth. The proximal pair of bristles of tlie fifth 

 segment is lateral like the other pairs. The proportional lengths 

 of the tarsal segments are : — 



Fore tarsus : J . 10, 12, 10, 8, 22 ; $ . 12, 15, 12, 10, 24. 



Mid tarsus : d • 18, 18, 14, 9, 22 ; $ . 24, 25, 18, 10, 26. 



Hind tarsus : J . 49, 32, 20, 12, 24 ; $ . 60, 37, 23, 14, 30. 



Text- fig. 112. 



Clasping organs of Ceratophi/llus mandarhivs S . 



Modified segments. — J • The eighth tergite bears at the upper 

 edge bejond the stigma a row of four long bristles, from the last 

 bristle towards the sides of the segment there ai'e two bristles, 

 another stands below the stigma and two are situated near the 

 ventral edge. The eighth sternite (text-fig. 112, YIII. st.) is small, 

 being distally suddenly narrowed to a point in lateral aspect and 

 bearing no bristles. The clasper (text-fig. 112, CI) is broad, its 

 upper angle rounded and not produced into a process. The 

 manubrium is at first strongly narrowing from the clasper inward 

 and then I'emains almost of even width : its apex is slightly 

 curved downwards and has the upper angle more strongly 

 rounded off than the lower angle. The movable process (F) is 

 very long and of practically the same width throughout. It is 

 but slightly curved and its tip rounded off. This finger bears a 

 short bristle at the tip, a long one below the tip at the distal or 

 ventral margin, and a thiid shoit bristle further down, then follow 

 another short one, a moderately long one and another a little 

 shorter than the preceding oiie. This last bristle is situated a 

 short disrance beyond the centre of the margin of the finger, thei'e 



