OF THE FAM [LY COCCIDAE i i? 



2. The INGLISIA group comprises only the genus Inglisia, which shows a 

 number of distinctive characters justifying its separation from all other groups. A 

 brief study of a species of Ceroplastes (C. chiton Green) showed that this species also 

 belongs to the INGLISIA group. The exclusive characters of the group are the 

 following : (i) lateral eyes about as large as the dorsal and ventral ones, (ii) pro- 

 sternum spinose, (iii) pleural sclerotization extending from the IYth-VIIth ab- 

 dominal segments, (iv) more than 6 fleshy setae on abdominal sternite VIII. 



The group features a number of primitive and specialized characters. The 

 specialized ones are : (i) the considerably reduced midcranial ridge, (ii) the small 

 spines present on the presternum and on the front coxae, (iii) the reduced median 

 ridge of the basisternum, (iv) the reduced metathorax which lacks halteres, suspen- 

 sorial sclerites and a complete pleural ridge, and (v) the extensive pleural sclerotiza- 

 tion which, as discussed earlier, is probably of secondary development and therefore 

 a specialized feature. The primitive features include : (i) eight simple eyes, 

 which is probably a primitive condition as it more closely resembles the compound 

 eye of the margaroid ancestors, (ii) sternal plates on all the abdominal segments, 

 (iii) a scutellum which is not tubular, (iv) a basalare connecting the pleural wing 

 process with the episternum, and (v) the absence of prominent caudal extensions 

 on abdominal segment VII, or caudal extensions with a cicatrix on the VHIth. 



3. The ERIOPELTIS group : This group consists of the two closely related 

 genera Eriopeltis and Luzulaspis, which share about 90 characters between them. 

 Three characters are exclusive to this group : (i) the head comparatively flat 

 dorsoventrally, (ii) the postocular ridge not forking below ocellus, and finally, 

 (iii) the long and narrow wings which are more than 2§ times longer than wide. 

 Another characteristic of this group is the presence of an interocular ridge, but this 

 is sometimes shared by Genus A of the EULECAX I I'M group. 



The ERIOPELTIS group exhibits both primitive and specialized features. The 

 two genera share the following specialized characters : (1) an interocular ridge, 

 connecting the pre- and postocular ridges, (ii) a more or less reduced midcranial 

 ridge, (iii) four simple eyes, (iv) the absence of the preoral ridge, (v) a tubular 

 scutellum, (vi) a reduced metathorax with a small episternal plate, short pleural 

 ridge and no halteres or suspensorial sclerites, and (vii) the presence of pleural 

 sclerotization on abdominal segment VII. In each of the two genera an additional 

 specialized feature is found : in Luzulaspis the cluster of pores (and the pouch) on 

 abdominal segment VIII has secondarily been lost (the pores are present in the more 

 primitive margaroid Coccoidea (Morrison, 1928 ; Theron, 1958, 1962), the Pseudo- 

 coccidae (Giliomee, 1961) and all the other species studied here) ; in Eriopeltis the 

 median ridge of the basisternum is reduced. 



The prevailing primitive features in this group are : (i) the presence of distinct 

 anterior tentorial pits, (ii) the presence of a basalare connecting the episternum and 

 the pleural wing process, (iii) the absence of prominent caudal extensions on 

 abdominal segment VII or caudal extensions with a cicatrix on the Vlllth. In 

 addition, in Eriopeltis the ventromedial part of the epicranium is well sclerotized, 

 and tergites and sternites are present on all the abdominal segments. 



