OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 151 



Abdomen : Total length from first abdominal segment to projection of basal ridge of penial 

 sheath 448-509 (479) [x, and width at third segment 289-342 (312)^1. Tergites and sternites 

 of segments I— VII occurring as narrow median sclerotized areas ; tergite of segment VIII 

 large and that of segments IX + X distinct ; sternites of segment VIII ill-defined. Ostioles 

 well developed, 34-40 (37) (i. long at orifice. Abdominal setae on each side : Dorsal setae 3-5 

 on segments I to VII and 2-4 on segment VIII. Pleural setae on segments I to VII and 3-4 

 on segment VII I, including one considerably long and stout seta on each of segments VI, VII 

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

 VIII. Abdominal pores : Segments I to VII with 3-5 (4-2), 2-5 (2-9), 2-5 (2-8), 2-4 (2-7), 

 1-3 (2-1), 1-2 (i-8), and 0-1 (05) pleural pores, respectively. The segments also with 0-2 

 (o-8), 0-2 (0-4), 0-2 (0-5), 0-2 (0-5), 0-2 (1-2), 0-2 (0-9), 0-1 (0-3), and 0-1 (0-3) dorsal pores. 

 One or two ventral pores present at least on one side of segments II to VI and sometimes also 

 VII (averages 15, 13, 11, 13, 06, and 03, respectively). 



Glandular pouch small ; setae 0/ glandular pouch include a pair of 153-229 (180) ji long tail 

 setae, and one seta, 61-76 (70) |j. long, i.e. the ratio length of the tail setae to the total length 

 of the body 1 : 5-7-8 (6-4). Genital segment identical with that of the macropterous males. 

 Penial sheath 128-143 (140)^ long and 79-89 (&2)[i wide, ratio 1-6-1-7 (168) : 1, and the ratio 

 its length to the total body length 1 : 7-8-8-9 (8-2). 



Material : 12 specimens examined, collected by B. S. Chandel, on sugar cane, 

 in U.P. Bichpuri farm, Balawant Rajput College, Agra, United Provinces, India, 

 during the summer of 1964 (received from Dr. D. J. Williams). 



OCTOCOCCUS Group 



OCTOCOCCUS Hall, 1939 



Octococcus africanus (Brain) 



(Text-figs. 31, 32) 



Only winged forms known ; moderately robust, small, with very long antennae and long 

 legs. Mounted specimens 882-1064 (966)1* long, 308-336 (322)0. wide and 2212-2534 (2366) jx 

 wing expanse. 



Body setae and pores : Antennae with numerous fleshy setae and a few hair-like ones, about 

 24(x long. The body itself and the legs with hair-like setae only. Quadrilocular and 

 occasionally quinquelocular disc pores present only on the thorax and the first abdominal 

 segment, about 6u in diameter. 



Head : Subtetrahedron ; subtriangular in dorsal and front views ; ventral preocular 

 depression well pronounced in lateral view. Length from apex to postoccipital ridge 89-110 

 (101)0 ; from apex to neck 137-153 (146)0 ; width across the genae 165-192 (177)0. Dorsal 

 arm of midcranial ridge anteriorly separated from other arms and posteriorly fading out before 

 reaching the postoccipital ridge. Lateral and ventral arms forming together a Y-shaped ridge. 

 Postoccipital ridge not reaching the preocular ridges. Preocular and interocular ridges joined ; 

 the former with a hardly indicated ventral rudiment below the articular process. Postocular 

 ridge well developed and preoral ridge slender. Eyes : Dorsal simple eyes slightly projecting 

 beyond the outer margins of the head in dorsal view ; their corneae 18-21 (20) o in diameter 

 and separated by 92-119 (104)0, i.e. 4-4-6-0 (5-1) times their diameter apart. Ventral simple 

 eyes 15-21 (18)0 in diameter and 24-31 (27)0 apart. Lateral ocelli large. Cranial apophysis 

 comparatively short and apically truncate. Tentorial bridge slender. Dorsal head setae 5-7 

 (5-9) on each side anterior to the postoccipital ridge ; each gena always with 3 genal setae. 

 Ventral head setae on each side : Setae between the ventral eyes absent ; 3-4 (3-6) setae in the 



