122 MORPHOLOGY AND TAXONOMY OF ADULT MALES 



a very short distance below articular process. Postocular ridge well developed throughout ; 

 ventral to ocellus the ridge usually splits up, with the anterior branch partly surrounding 

 ocellus. Interocular ridge absent. Dorsal ocular setae : 1-4 (average 2-5) f.s. and 1-5 (average 

 2-8) h.s. Ventral head setae : 55-84 (average 71) f.s. and 4-8 (average 6-3) h.s., scattered over 

 the ocular sclerite, always with some (3-6, average 2-3) f.s. occurring in front of the sclerite and 

 with 11-21 (average 16) between and behind the eyes. Preoral ridge present. Tendon-like 

 apodeme long. Cranial apophysis of medium length ; apex bifurcate, extending to around 

 level of posterior margin of ventral eyes. Mouth opening irregular. Anterior tentorial pits 

 absent. 



Antennae 10-segmented, filiform ; 678-770 (average 727) \x long, i.e. shorter than half body 

 length (ratio 1 : 2-02-2-24, average 2-10), shorter than posterior leg (ratio 1 : 0-72-0-78, 

 average 0-75) and longer than penial sheath (ratio 1 : 1-59-1-80, average 1-71). Scape 42-46 

 (average 43) \l long and 38-42 (average 39) \x wide, with 3 h.s. Pedicel occasionally with poly- 

 gonal reticulation dorsally, but usually with only wavy striations ; 46-53 (average 50) ^ long 

 and 34-47 (average 38) \x wide ; with 8-17 (average 12) f.s., 4-6 (average 5-4) h.s. and a sen- 

 sillum placodeum. Segment III somewhat club-shaped, 2-6-3-2 (average 3) times longer than 

 wide (59-72, average 69 u. long and 21-25, average 23 \i wide) ; with 8-15 f.s. of medium length, 

 1-2-1-4 (average 1-3) times longer than width of segment ; with 1-3 usual sensilla basiconica. 

 Segments IV-IX cylindrical ; lengths of these segments (in a.) 106-137 (average 120), 91-105 

 (average 98), 68-80 (average 74), 68-87 (average 79), 49-65 (average 58) and 53-65 (average 

 59) respectively, widths varying from 15 to 23 \x, with distal segments slightly wider than 



Fig. 43. Ceroplastes sp., dorsal and ventral view. 



