OF THE FAMILY COCCIDAE g 



was measured from the anterior margin (topographically) to the prescutal suture, 

 without including the broad internal ridge of the latter ; the width was measured 

 across the middle of the sclerite, including the lateral ridges. The maximum 

 length and width of the median membranous area of the scutum, the length and width 

 across the middle of the scutelhim, and the maximum length and width of the 

 basisternum (but not including the ridges) was taken. The length of the wing was 

 measured from the base of the costal complex of wing veins to the tip of the wing, 

 and the width across its maximum expansion. The length of the segments of the 

 leg was measured as in Pseudococcus (Giliomee, 1961) ; the tarsus, however, was 

 measured along the outer margin instead of the inner, the former being the more 

 accurate. The width of each segment was measured at its maximum, with the ex- 

 ception of the tibia which was measured across the middle because it is usually 

 somewhat wider at the apex. 



The length of the abdomen was measured from the mesopostphragma to the anus, 

 and the width across segment III. The penial sheath may be somewhat curved and 

 for accuracy its length was measured in pleural view, following the curve ; its width 

 was measured at the level of the base of the aedeagus. 



The material used in this study has been deposited in the collections of the 

 British Museum (Natural History), London, the Imperial College of Science and 

 Technology, London and the Department of Entomology, University of Stellenbosch, 

 South Africa. 



KEY TO LETTERING ON FIGURES 



The lettering of all figures is uniform and is as follows : 



A 



1 >orsal and ventral aspects of body 



1. 



Hind claw, posterior view 



A 1 



Lateral aspect of body 



M 



Part of inner margin of fore coxa, 



B 



Head, dorsal view 





showing setae and coxal bristle(s) 



C 



Head, ventral view 



N 



Articulation of fore wing, showing 



D 



Mesoprephragma, anterior view 





pteralia 



E 



Mesopostphragma, posterior view 



() 



3rd axillary wing sclerite, posterior 



F 



3rd segment of left antenna, 





view 





ventral view 



1' 



Subalare, dorsal view 



G 



10th segment of left antenna. 



Q 



Caudal extension of 8th abdominal 





ventral view- 





segment, dorsal view 



H 



Membranous area <>l st utum 



K 



Apex of penial sheath, ventral 



I 



3rd axillary wing sclerite, dorsal 





view 





view 



S 



Apex of penial sheath, ventral 



J 



Fore claw, posterior view- 





view 



K 



Middle claw, posterior view 



T 



Tentorium and cranial apophysis 





ABBREVIATIONS l 



SED IN 



THE FIGURES 



aas 



ante-anal setae 



als 



alar seta 



ab 



antennal bristles 



ams 



antemetaspiracular setae 



ads 



abdominal dorsal setae 



amss 



anterior metasternal setae 



aed 



aedeagus 



an 



anus 



al 



alar lobe 



anp 



anterior notal wing process 



