162 



MORPHOLOGY AND TAXONOMY OF ADULT MALES 



longest and those of middle and hind legs subequal in length ; the ratio width to length of the 

 hind femur i : 6-5-7-5 (6-9). Tibia about 2i(x wide ; with 2 apical spurs and usually 2 smaller 

 spines ; the fore leg the femur shorter than the tibia, the ratio their lengths being 1 : 1-3-1-4 

 (1-33). Tarsus about i8jx wide ; tarsal digitules entirely absent. Claw gradually tapering to 

 a sharply pointed tip ; ungual digitules fine. The lengths of the leg segments (in microns) and 

 the number of setae on each are given in the following table : 



Coxa 



length 

 f.s. 





h.s. 



Trochanter 



length 

 f.s. 





h.s. 



Femur 



length 

 f.s. 





h.s. 



Tibia 



length 

 f.s. 





h.s. 



Tarsus 



length 

 f.s. 





h.s. 



Claw 



length 



Total length of leg 



Fore leg 



49-55 (52) 



9-13 (n-6) 



2-5 (3-8) 

 70-76 (73) 



4-6 (4-8) 



2-3 (2-4) 



268-308 (287) 



28-39 (33-4) 



6-9 (yi) 



35I-42I (381) 



47-56 (51-8) 



6-8 (6-7) 



113-131 (119) 



23-27 (24-6) 



6-8 (6-9) 



37-43 (40) 

 888-1025 (949) 



Middle leg 



49-55 (52) 

 10-13 (12-5) 



2-4 (3-i) 



70-76 (73) 



4-6 (4-5) 



2-3 (2-6) 



259-296 (275) 



27-36 (31-2) 



6-8 (6-9) 



35I-4I5 (372) 



43-53 (48-2) 



6-10 (8-3) 



II3-I34 (122) 

 23-29 (25-1) 



6-9 (7-6) 

 37-43 (40) 



878-1016 (933) 



Hind leg 



52-58 (55) 

 10-14 (12-7) 



3-5 (4-2) 

 73-79 (76) 



4-7 (4-5) 



2-4 (27) 



259-296 (275) 



28-38 (32-6) 



7-10 (7-8) 



387-451 (409) 



48-62 (57-7) 



8-12 (104) 



128-150 (134) 

 27-35 (32-8) 



7-i 1 (8-3) 

 37-43 (40) 



939-1074 (988) 



Abdomen : 494-661 (555) \l long and 327-365 (342)^ wide. Tergites of segments I, II, III 

 and sometimes IV small ; those of segments VIII and IX + X well sclerotized. Sternites 

 of segment VIII ill-defined. Ostioles well developed, 37-43 (40) \i long at orifice. Abdominal 

 setae on each side : Dorsal setae 3-4 on segment I, 2-3 on segments II to VI, 3-4 on segment 

 VII, and 1-3 on segment VIII. Pleural setae 3-4 on segment I, 4-6 on segment II, 5-6 on 



200^- 



100. 



Fig. 36. Centrococcus insolitus (Green), lateral view. 



