J54 



MORPHOLOGY AND TAXONOMY OF ADULT MALES 



Legs : Comparatively long and stout ; the ratio length of the hind leg to the total body 

 length i : 1-5-1-7 (i-6). Coxa about 55 and trochanter about 27 \i wide ; the latter with a 

 differentiated long apical seta. Femur about 4051 wide ; that of the fore leg longest and that 

 of the middle leg shortest ; the ratio width to length of the hind femur 1 : 3-7-4-2 (4-0). Tibia 

 about 24 (x wide ; with 2 apical strong spurs and 2-3 smaller spines ; in fore legs the femur 

 usually shorter and sometimes as long as the tibia, the ratio their lengths being 1 : i-i-i (1-06). 

 Tarsus about 21 \l wide ; tarsal digitules apically knobbed, about 37(1 long. Claw gradually 

 tapering to a pointed end ; ungual digitules fine. The following table shows the lengths of the 

 leg segments (in microns) and the number of setae on each : 



Fore leg Middle leg Hind leg 



43-49 (46) 43-49 (4 6 ) 46-52 (49) 



8-12 (9-3) 8-13 (10-4) 9-12 (10-5) 



58-67 (61) 58-67 (61) 61-70 (66) 



4-6 (4-8) 4-7 (5-2) 5~7 (5'4) 



162-174 ( l6 8) 143-159 (153) 150-165 (159) 



19-25 (21-3) 14-20 (17-2) 15-21 (17-8) 



162-189 (177) 177-211 (189) 198-232 (214) 



20-27 (23-5) 21-29 (247) 23-30 (27-1) 



76-82 (79) 76-82 (79) 79-85 (82) 



13-18 (154) 15-18 (16-9) 16-20 (18-1) 



00-00 (24) 00-00 (24) 00-00 (24) 



522-580 (555) 525-586 (555) 561-619 (592) 



Abdomen : 266-334 ( 2 96)[^ long and 289-327 (312) \l wide. Tergites of segments I and II 

 small ; those of segments VIII and IX + X large and distinct. Sternites of segment VIII 

 ill-defined. Ostioles entirely absent. Abdominal setae on each side : Dorsal setae 2-3 on 

 segment I, 3-4 on segments II to VI, 2-3 on segment VII, and 1-2 on segment VIII. Pleural 

 setae 2-3 on segment I, 3-4 on segments II to VII, and always 1 on segment VIII. Ventral 

 setae 1 on segment II, 1-2 on segment III, 2-3 on segments IV to VII, and absent on segment 

 VIII. Abdominal pores : Segment with 1-3 (2-6) pleural pores on each side ; other abdominal 

 pores entirely absent. 



Coxa 



length 

 h.s. 



Trochanter 



length 

 h.s. 



Femur 



length 

 h.s. 



Tibia 



length 

 h.s. 



Tarsus 



length 

 h.s. 



Claw length 

 Total length of leg 



200 ^ 



100^- 



Fig. 32. Octococcus africanus (Brain), lateral view. 



