OF THE FAMILY COCCIDAE 121 



weak transverse plate on segments II, III, VI and VII. Caudal extension of segment VII large, 

 reaching the level of the posterior margin of segment VIII, tapering and weakly sclerotized. 

 Dorsal setae : up to 4, 5, 6, 3, 2 and 1 f.s. on segments I-VI respectively, but none on VII ; 

 occasionally a single h.s. present on segments I — I II, and usually one on each side on each of 

 segments [V— VII. Pleural setae consisting of dorsopleural setae : 0-3 (average 0-7), 0-3 

 (average 1-3), 0-3 (average 1-7), 1-3 (average 2), 0-3 (average 1 -6) and 0-4 (average 1) f.s. on 

 I-VI, and 0-2 (average 0-9), 2, 0-2 (average 1 -6) and 12 (average 17) h.s. on segments III-VI 

 respectively, and of ventropleural setae : occasional lv one (range 0-2) f.s. on II, usually 2 

 (range 0-3) on III, and 3 (range 1-5) on each of segments IV V I, and usually one h.s. on each of 

 segments [V— VI. Segment VII with 9 15 (average 12) f.s. and 3-4 (average 3-2) h.s. ; some of 

 the posterior h.s. usually longer than rest. Ventral setae : 21-28 (average 25), 17-25 (average 

 21), 11-18 (average 14), 7-12 (average 10), 5-8 (average 7) and 1-5 (average 3) f.s. on the 

 segments [I— VII respectively ; usually one h.s. on each side on III-VI and 4 on VII 



Segment VIII with weak tergite and transverse sternite ; caudal extension forming a 

 prominent, weakly sclerotized, semi-circular lobe with a large cicatrix posterodorsally, the latter 

 weakly sclerotized and reticulated in the middle ; glandular pouch with 2 long, pointed setae, 

 whose protruding part is 3—4 times as long as section within pouch Small IXth tergite present. 

 Ante-anal setae : 0-3 (average 1 -a) f.s Posterior margin with 2-6 (average 3-8) f.s. and 2-3 

 (average 29) h.s. on each side. 



Genital segment. Penial sheath long, about *-\ total body length (ratio 1 : 3-6 41, average 

 3' 8 ). 395-4IO (average 42) |j. long and 38-42 (average 40) [j. wide ; lateral sclerotizations 

 narrowly joined anterior to anus ; length of basal rod about equal to that of aedeagus, extending 

 anteriorly from base of the aedeagus for about jj of the distance to apex of the basal membranous 

 area ; apex of sheath with a distinct, finger-like membranous extension. Area from base of 

 sheath to tip of aedeagus with 17-22 (average 20) small setae ; a cluster of small sensilla occur- 

 ring ventrally near apex of sheath Aedeagus of medium length (1 18-137, average 125 u. long), 

 penial sheath and basisternum longer, the ratios being 1 : 3-0-3-4 (average 31) and 1 : 1 -28 

 1 52 (average 1 30) respectively 



Material examined : 10 specimens, collected on Brachystegia tamarindoides Welw. 



by R. Boulton in the Salisbury district, [Southern] Rhodesia on 11.xii.62 ; received 

 from J. Munting ; identified by 1). J. Williams. 



Ceroplastes sp. 

 (Text-figs. 43 and 42) 



A short, robust species, with comparatively short antennae and long legs ; with numerous 

 setae covering the body and appendages. When mounted, total body length 1430-1670 

 (average 1529) \x ; width at mesothorax 370-410 (average 386) \i. Wing expanse 2320-2500 

 (average 2417) u.. 



Head subcorneal in dorsal view ; in lateral view dorsoventrally elongated, with anterodorsal 

 bulge not pronounced ; length from apex to pronotal ridge 205-247 (average 225) \i, width 

 across genae 213-251 (average 231) y.. Median crest sclerotized, showing distinct, polygonal 

 reticulation which does not enclose irregular striations ; with numerous (16-27, average 22) 

 fleshy dorsal head setae and 7-1 1 (average 81) hair-like ones. Midcranial ridge dorsally repre- 

 sented by a short, vestigial ridge on anterior margin of head ; ventrally strong, reaching ocular 

 sclerite posteriorly, surrounding area weakly polygonally reticulated. Genae large, sclerotized, 

 with polygonal reticulation ; each with 11-19 (average 15) fleshy and 2-7 (average 4-3) hair-like 

 genal setae. Eyes : two pairs, subequal ; corneae of dorsal eyes 27-30 (average 29) \i in 

 diameter and 1-6-2-6 (average 21) times as much apart ; those of the ventral eyes 29-32 

 (average 30) u. in diameter and o-6-i-o (average o-8) times as much apart. Ocellus small. 

 Ocular sclerite well sclerotized, polygonally reticulated throughout. Preoculav ridge extending 



