TRIBE DIASPIDINI 



317 



ff. Pygidium with single irregular series of brevaceratubae, 

 consisting of about four oraceratubae on each side; me- 

 dian pair of lobes strongly divergent, free margins ser- 

 rate; second and third pairs of lobes incised, lobelets 

 subequal in length, distal ends truncate or slightly 

 oblique, slightly serrate; plates long and slender, ar- 

 ranged 0, 1, 1, 4, those of each lateris arranged 1-1-1-1; 

 genacerores 15-15(16-19)16-17; body with prominent 

 tubercle at each cephalo-lateral angle. Aulacaspis cin- 



namomi Newst. Java on Cinnamomum 



tubercularis Newst. 



ee. Pygidium with median pair of lobes entire and with fur- 

 capectinae in incisurae; median pair of lobes oblique, 

 distant, broadly rounded, entire; second and third pairs 

 of lobes entire, incised, lobelets similar in form, entire, 

 broadly rounded, mesal lobelet larger than lateral; plates 

 and furcapectinae arranged 0, 1, 1, 4, those of incisurae 

 and one adjacent to each third lobe furcapectinae, cephalic 

 ones much longer than caudal, plates of lateris long, they 

 and furcapectinae arranged 1-1-1-1; genacerores 15-15(26- 

 29)16-17. Diaspis (Aulacaspis) cinnamomi mangiferae 



Newst. Ceylon, Egypt on mango mangiferae Newst. 



dd. Pygidium with nine pairs of altaceratubae, sometimes eight, 

 extra ones located on cephalic part; median pair of lobes 

 widely divergent, free margins convex and finely serrate; 

 second and third pairs of lobes incised, lobelets of each pair 

 subequal, those of second larger than those of third, distal 

 margins truncate, margins entire; plates stout, arranged 

 0, 1, 1, 5-6, those of each lateris arranged l-l-l-2or3; caudal 

 segment of preabdomen with 4-5 plates on each side; meso- 

 genacerores 15-16, pregenacerores and postgenacerores forming 



continuous group on each side of 18-22 cerores. Java 



javanensis Newst. 



cc. Pygidium with plates of second and third incisurae not pro- 

 jecting caudad beyond caudal end of median pair of lobes or 

 at most projecting only slightly; median pair of lobes large, 

 long, projecting strongly, distant, distal end broadly rounded, 

 margins minutely serrate; second pair of lobes incised, mesal 

 lobelet twice as long as lateral, elongate, narrow, rounded, 

 both lobelets entire; third pair of lobes incised, mesal lobelet 

 long, narrow, twice as long as broader lateral lobelet, margin 

 of mesal lobelet serrate; plates long, slightly longer than mesal 

 lobelet of second pair of lobes, arranged 0, 1, 1, 5-6, those of 

 each lateris arranged l-l-l-3or4; genacerores 8-16(14-25)11-26; 

 anus and vulva superimposed; thoracic and cephalic abdominal 

 segments with one and sometimes two pairs of conspicuous 

 depressed dorsal areas. Ceylon on Loranthus.__ZoranM Green. 

 t)b. Pygidium with vulva located some distance caudad of anus. 

 c. Pygidium with genacerores 8-10(15-18)20-30; median pair of 

 lobes comparatively long, divergent, minutely crenulate, fused 



