OF PSEUDOCOCCIDAE & ERIOCOCCIDAE 163 



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

 on segment III, 2 on segments IV to VII, and absent on segment VIII. Abdominal pores : 

 Pleural pores 2-3 (2-4) on segment I, 0-1 (0-2) on segment IV, 1-2 (13) on segment VI, and 

 absent on other segments. Dorsal pores 1-3 (1-9). 1-2 (1-2), 1-2 (11), 0-2 (0-9), 0-1 (07), 

 0-2 (08), and 0-1 (07) on segments I to VII respectively. Ventral pores also sometimes 

 present, 0-2 (07), 0-1 (03), and 0-1 (02) on segments III, IV and V respectively. 



Glandular pouches occur on each side of segments VII and VIII. Setae of the glandular 

 pouch of segment VII include a pair of 168-204 (183)0- long tail setae only ; those of segment 

 VIII include a pair of 198-229 (214)0. long tail setae and a short one, subequal to the abdominal 

 setae in length, i.e. the ratio length of the tail setae of segment VIII to the total body length 

 1 : 5-6-71 (6-5). 



Genital segment comparatively small ; style rather straight in lateral view, with a rounded 

 apex. Penial sheath 107-116 (113)0 long and 73-82 (76)0 wide, the ratio length to width 

 being 1-3-1 -6 (15) : I, and the ratio its length to the total body length 1 : 11 -8-13-4 (12 -3). 

 Basal ridge of penial sheath slender and its projection small. Process of penial sheath hardly 

 pronounced. Aedeagus comparatively stout. Setae of genital segment on each side : Dorsal 

 setae 5-7 (6-4) near the base of the style ; ventral setae 2-4 (2-8) on the penial sheath. 



Material : 10 specimens examined, collected by H. K. Patel, on Cajanus indicus, 

 in India (Anand), 14.xii.1955 (received from Dr. D. J. Williams). 



NAIROBI A Group 



NAIROBI A De Lotto, 1964 



Nairobia bifrons De Lotto 



(Text-figs. 37, 38) 



Winged forms only known ; narrow and slender, comparatively large, with moderately long 

 antennae and legs. The mounted males 1260-1596 (1442)0 long, 308-350 (336)0 wide at 

 mesothorax and 2814-3528 (3248)0 wing expanse. 



Body setae and pores : Fleshy setae entirely absent. Hair-like setae present on the antennae, 

 legs and body, about 210 long. Disc pores absent altogether. 



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

 depression hardly indicated in lateral view. Length from apex to postoccipital ridge 128-140 

 (131)0 ; from apex to neck 177-195 (186)0 ; width across the genae 220-241 (232)0. Dorsal 

 arm of midcranial ridge marked by a narrow sclerotization ; this sclerotization continuous 

 with those indicating the lateral and the ventral arms anteriorly, and almost meeting the post- 

 ocular ridge posteriorly. Postoccipital ridge confluent with preocular ridges. Preocular ridge 

 well developed and completely separated from postocular ridge ; interocular ridge absent ; 

 preoral ridge slender. Eyes : Dorsal simple eyes projecting beyond the outer margins of the 

 head in dorsal view ; their corneae 18-24 ( 2I )i jL m diameter and separated by 125-162 (146)0, 

 i.e. 5-5-7-6 (6-9) times their diameter apart. Ventral simple eyes 21-24 (23)0 in diameter and 

 34-55 (46) o apart. Lateral ocelli vestigial. Ocular scleriles large. Cranial apophysis truncate ; 

 tentorial bridge slender. Dorsal head setae on each side : Setae in front of the postoccipital ridge 

 in two separable groups, 3-5 (4-1) anteriorly and 4-6 (4-4) posteriorly ; each gena usually with 

 2 genal setae but 1 or 3 setae may occur on one side (av. 2-1). Ventral head setae on each side : 

 One seta may occur between the ventral eyes (av. 0-4) ; 8-1 1 (8-8) forming on both sides a 

 transverse band in the area of the ventral preocular depression ; 2-3 (2-2) in a longitudinal 

 row anteriorly. 



Antennae : Filiform ; normally 10-segmented but fusion between two or more adjacent 

 flagellar segments on one or both antennae very common ; 799-933 (894)0 long, i.e. much 



