256 THE COCCIDAE 



row with subparallel sides and distinct mesal and lateral 

 notches; unapectinae with teeth much longer than stem of 

 pectina, arranged 2, 2, 8, those of each lateris approximating 

 plates in form and spread over entire margin; margin of 

 segments of preabdomen with furcapentinae-like projections; 

 anus near middle and superimposed above vulva; scale bright 



yellow, minute, circular, convex. India on Mesua 



spinomarginata Green. 



bb. Pygidium of adult female without pectinae or plates. 



c. Pygidium of adult female with two pairs of lobes. 



d. Pygidium of adult female with median pair of lobes large, 



oblique, mesal margins deeply serrate, placed in pygidial 



incision; second pair of lobes slender, rounded, rudimentary 



projections; setae of median incision large; pygidium of 



second nymphal female similar, with prominent altacera- 



tubae; second exuvia covering nearly entire scale, naked, 



shining black, margined by thin white scale. Paralatoria 



distinctissima Newst. Aonidia distinctissima Newst. India 



on Nerium. distinctissima Newst. 



dd. Pydigium of adult female small with two large clubbed 

 terminal lobes with fine pointed projections on either side 

 of lobes, forming irregular fringe; with four irregular de- 

 pressed areas close to outer margin on either side of ter- 

 minal lobes; body almost circular, dull yellowish and finely 

 striate on abdominal segments; scale reddish brown, con- 

 vex, sometimes covered with thin incrusltation of white se- 

 cretion. The figure of scale is that of aspidiotid. New 



South Wales on Acacia acaciae Frogg. 



cc. Pygidium of adult female with four pairs of lobes arranged in 

 transverse row across end of truncated pygidium; lobes small, 

 subequal, entire, broader than long, distance between median 

 lobes twice width of lobe; plates and pectinae wanting, with 

 pair of short pointed projections in each incisura, sometimes 

 toothed like pectinae; pygidium of second nymphal female 

 with pygidial margin more convex than that of adult female, 

 with numerous pseudolobes; pygidium of first nymph with 

 five pairs of lobes with unapectinae between them and with 

 prominent altaceratubae; median incisura narrower than any 

 of others; scale black, cephalic half globular, broader and 

 larger than caudal portion. Aonidia bullata Green. Ceylon 



on leaves of unidentified tree bullata Green. 



aa. Pygidium of adult female always without true lobes, either with 

 pseudolobes or entire and without lobes. 



b. Pygidium of adult female entire, always without projections or 

 pseudolobes; pygidium of second nymphal female with three pairs 

 of narrow, bluntly rounded, entire lobes; pectinae wanting in 

 median incisura, median lobes adjacent; each second and third 

 incisura with two distapectinae and seven or more on each lateris; 

 scale reddish and subhemispherical. West Australia on Hakea.__ 



perpusilla Mask. 



