OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 



149 



each side. Numerous quadrilocular, and occasionally trilocular pores, about 6u. in diameter, 

 present on the head, thorax and abdomen. 



Head with a narrow truncate apex, becoming broader posteriorly as it fuses with the thorax. 

 Length from apex to postoccipital ridge 85-101 (95) n and width across the genae 174-189 

 (180) [jl. Midcranial ridge with its dorsal, lateral and ventral arms entirely absent. Postoccipital 

 ridge V-shaped. Dorsomedial part of epicranium well sclerotized. Ocular ridges usually 

 present, but sometimes atrophied or absent altogether. If present, the preocular and inter- 

 ocular ridges join the postocular ridge just below the ocellus. Preoral ridge weak. Eyes : 

 Dorsal and ventral simple eyes absent ; lateral ocelli small. Cranial apophysis comparatively 

 small, apically truncate. Tentorial bridge slender. Dorsal head setae 9-12 (105) on each side 

 of the median line ; each gena always with 3 genal setae. Ventral head setae on each side : 

 7-9 (8-3) just anterior to the level of ocelli ; posteriorly, 0-1 (o-6) occur medially. Head pores : 

 Dorsal head pores 2-4 (2-8) near the base of each antenna ; ventral pores absent. 



Antennae : Filiform ; 8-segmented ; 256-293 (275) ji. long, i.e. the ratio its length to the 

 total body length 1 : 3-9-4-6 (4-2), and the ratio its length to the length of the hind leg 1 : 1-7- 

 2-0 (i-8). Scape 40-46 (43) u. long and 37-43 (40) (a wide at base ; with 4-5 (4-2) h.s. Pedicel 

 37-40 (39)u. long and 31-34 (33)(x wide ; with 4-5 (4-5) f.s., 4-8 (5-8) h.s. and a sensillum 

 placodeum. Flagellar segments : Segment III club-shaped and subequal in length to segment 

 VIII (ratio 0-9-1-2, av. i-i : 1). Flagellar segments about 24^ wide, the ratio width to length 

 of segments III and VII being 1 : 1-4-1-8 (i-8) and 1 : 1-2-1-3 ( I-2 5)> respectively. The 

 lengths of the flagellar segments and the number of setae on each are given in the following 

 table : 



Length in jx 



(av.) 



f.s. 



(av.) 



h.s. 



(av.) 



Ill 

 34-36 

 (40) 

 4-8 

 (5-8) 

 i-3 

 (2-3) 



IV 

 24-40 

 (34) 

 i-5 

 (3-o) 

 3-5 

 (4-2) 



V 

 21-27 

 (24) 

 i-3 

 (2-3) 

 4-5 

 (4'8) 



VI 



27-34 

 (3o) 

 i-4 



(2-1) 



3-5 



(4-5) 



VII 



27-31 

 (29) 

 1-2 



(i-5) 

 4-6 



(4-8) 



Antennal bristles much stouter and longer than the antennal fleshy setae 



VIII 



27-40 

 (39) 

 i-3 

 (2-3) 

 6-8 

 (6-6) 



segments VI and 



o. 



Q. 



/ 

 / 



l/l 



/ 

 / 



CL 



1 

 1 

 l/l 



c 





E 



1/1 



1/1 



Q. 





I 



Q. 

 1/1 



\ \ 



- -ads 



avp 



200 



Fig. 30. Saccharicoccus sacchari (Cockerell), apterous form, lateral view. 



