92 MORPHOLOGY AND TAXONOMY OF ADULT MALES 



Segment VIII with small tergite and transverse sternite, the latter carrying 7-15 (average 11) 

 f.s. ; glandular pouch with 2 very long, pointed setae, whose protruding part is 4-6 times as 

 long as section within pouch. No I Xth tergite observed. Ante-anal setae : occasionally one or 

 two f.s. and 0-4 (average 1-5) small h.s. present. Posterior margin with 2-3 (average 2-6) f.s. 

 on each side. 



Genital segment. Penial sheath of medium length, about \ total body length (ratio 1 : 4 30- 

 4-86, average 4-60), 353-380 (average 371) \x long and 34-40 (average 37) [x wide ; lateral 

 sclerotizations not joined anterior to anus ; length of basal rod about f that of aedeagus and 

 extending anteriorly from base of the aedeagus for f-f of the distance to the apex of the basal 

 membranous area ; apex of sheath without membranous extension. Area from base of sheath 

 to tip of aedeagus with 28-44 (average 35) small setae ; a cluster of small sensilla occurring 

 ventrally near apex of sheath. Aedeagus long (350-380, average 371 \i), penial sheath longer 

 and basisternum shorter, ratios being 1 : 1-9-2-1 (average 2) and 1 : 0-72-0-93 (average 0-85) 

 respectively. 



Material examined : 10 specimens, collected by G. De Lotto on Pelargonium sp. 

 at Limuru, Kenya on 16.1.63. 



A number of the peculiarities of this species are shared by Ceroplastodes chiton 

 Green, of which 3 imperfect specimens were available. The most striking of these 

 are : the presence of 4 large simple eyes, the numerous projections on the pro- 

 sternum, the absence of the median ridge of the mesobasisternum, the presence of 

 a pleural band of sclerotization on the abdomen and the presence of numerous f.s. 

 (about 18 in C. chiton) on the 8th abdominal sternite. In addition, C. chiton also 

 has f.s. on all the regions of the head and prothorax, on the membranous area of the 

 mesoscutum and all the regions of the metathorax and abdomen ; the setae of the 

 glandular pouch are also very long, the protruding part being about 4 times as long 

 as the section within the pouch. 



C. chiton differs from /. theobromae in the following respects : the midcranial 

 ridge is reduced to a Y-shaped sclerotized area ventrally, and sometimes represented 

 dorsally by a short median ridge on the posterior part of the median crest ; the 

 postocular ridge is missing behind the ocellus ; a number of f.s. are situated beyond 

 the posterolateral corners of the median membranous area ; the anterior margin 

 of the mesopostnotum is exposed ; the tegular bulge carries a large number (more 

 than 5) f.s. ; the postnotum is represented by a single transverse sclerite ; the 

 presence of numerous (about 10) fleshy ante-anal setae ; the apical spur of the 

 tibia is about the same size on all 3 tibiae. 



The antennae of C. chiton were not available. 



The specimens of C. chiton were collected by G. Charles on Carica papaya L. in 

 Port Moresby, New Guinea on 23.vii.59, and received from D. J. Williams. 



The COCCUS Group 



COCCUS 



Coccus hesperidum Linnaeus 



(Text-figs. 31 and 32) 



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

 setae covering the body and appendages. When mounted, total body length 1380-1520 



