OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 



Mi 



h.s. Ventral head setae on each side : 3-5 (41) h.s. between the ventral eyes ; 10-16 (42-2) 

 f.s. and 1-3 (2-3) h.s. forming with their partners of the other side a transverse band in the area 

 of the ventral preocular depression ; ventral ocular setae 3-6 (44) f.s. and 0-2 (09) h.s. ; a 

 row of 0-1 (01) f.s. and 2-4 (28) h.s. present on each side of the ventral arm of the midcranial 

 ridge. Head disc pores : 1-2 (i-i) dorsal head pores occur near the base of each antenna ; 

 ventral pores absent. 



Antennae : Filiform ; normally io-segmented ; 586-699 (647)^ long, i.e. about as long as 

 half the body length (ratio 1 : 20-22, av. 21), and shorter than the hind legs (ratio 1 : i-i- 

 13, av. 1-2). Scape 46-50 (48) \jl long and 43-46 (44) [i wide at base ; with 5-8 (59) h.s. 

 Pedicel 61-70 (67)0. long and 34-37 (35)(i wide ; with 14-20 (173) f.s., 10-17 (*3'3) h.s. and a 

 sensillum placodeum. Flagellum : Segment III club-shaped and longest of all, the ratio 

 lengths of third to terminal segments being 1-3-1-5 (14 : 1 ; segment III about 24(1 wide, 

 the ratio its width to its length 1 : 3-5-5-0 (46). Segments IV to X cylindrical and about 

 22 (x wide, the ratio width to length of segment IX being 1 : 2-5-2-9 (27). The lengths of 

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





Ill 



IV 



V 



VI 



VII 



VIII 



IX 



X 



length in ^ 



85-107 



55-76 



58-70 



52-67 



52-64 



52-64 



55-64 



64-76 



(av.) 



(98) 



(67) 



(64) 



(61) 



(58) 



(58) 



(58) 



(70) 



f.s. 



10-17 



12-19 



13-16 



1 1-16 



11-14 



13-16 



9-13 



8-12 



(av.) 



(13-5) 



(14-8) 



(14-0) 



(138) 



(12-7) 



(14-5) 



(112) 



(io-i) 



h.s. 



2-6 



1-4 



1-4 



2-6 



2-6 



2-5 



2-6 



2-6 



(av.) 



(4-3) 



(3o) 



(3-2) 



(4-3) 



(37) 



(37) 



(4-o) 



(3-2) 



Antennal bristles easily distinguishable ; segments VIII and IX each with a ventral bristle. 

 Terminal segment with 3 preapical bristles, a pair of capitate subapical sensory setae and one 

 apical hair-like seta. 



Thorax : 532-616 (570)^ long. Prothorax : Pronotal ridge medially interrupted by a weak 

 sclerotization. Lateral pronotal sclerites and post-tergites distinct. Proepisternum with a 

 ridge-like dorsal margin. Prosternum triangular, 31-40 (37) [i long ; prosternal ridge 85-95 

 (92) (x long. Prothoracic setae on each side : Medial pronotal setae 1-5 (19) f.s. and 1-3 (i-6) 

 h.s. ; lateral pronotal setae 1-2 (13) h.s. ; post-tergital setae 3-9 (59) f.s. and 1-2 (h.s. ; ante- 

 spiracular dorsal setae 1-2 (1-2) h.s. One, hair-like antespiracular ventral seta always present. 

 Prosternal setae 1-4 (i-8) f.s. and 1-3 (i-6) h.s. Prothoracic disc pores on each side : Medial 

 pronotal pores 2-4 (2-7) ; lateral pronotal pores 4-6 (5-1) ; antespiracular dorsal pores 1-3 (1-9). 

 Prosternal pores 1-3 (2-0). 



Mesothorax : Prescutum 79-98 (85)0. long and 116-143 ( 131) [j. wide, the ratio being 1 : 14- 

 i-6 (1-5) ; laterally bounded by the prescutal ridge and posteriorly by the prescutal suture. 



o> «> ° 



200 



Fig. 26. Dysmicoccus alazon Williams, lateral view. 



