TRIBE DIASPIDINI 357 



verse row, mesal group of row 3-5, each lateral group 8-10. 

 New Zealand on Veronica, Leucopogon, Cyanthodes, ferns. __ 



media Mask. 



bb. Pygidium with seven groups of genacerores, arranged 3-4(15-17) 

 16-20, and a group cephalad and in line with pregenacerores, 7-8; 

 median pair of lobes prominent, divergent, confluent, short, wide, 

 entire; second pair of lobes minute, triangular, entire; plates 

 much longer than lobes, arranged 0, 1, 1; lateres serrate. West. 

 Australia on Daviesia nitens Fuller. 



SPECIES OF POLIASPOIDES 



Pygidium of adult female without lobes or plates; margin with three 

 indentations, limited on cephalic side by latadentes; lataceratubae ap- 

 parently wanting; brevaceratubae irregularly arranged: ventral sur- 

 face with numerous small pores adjacent to margin; dorsal and ven- 

 tral surfaces coarsely carinated; genacerores 19-22(30-35)50-55, two 

 groups caudad of postgenacerores, each consisting of 1-3 cerores; anus 

 located cephalad of vulva, near cephalic margin of mesogenacerores 

 and vulva between postgenacerores; scale of adult female mussel- 

 shaped. Ceylon on bamboo simplex Green. 



SPECIE'S OF CRYPTASPIDUS 



Pygidium of adult female with median lobes short and broad, broader 

 than long, distal margin with notches and roundly produced between 

 them; second pair of lobes small, incised, mesal lobelet largest, two 

 notches on distal margin, lateral lobelet entire; plates large, twice as 

 long as lobes, arranged 2, 1, 2, those of each lateris located one near 

 second lobe and one near middle, remainder of each lateris not figured 

 or described; 8 long dorsal setae and 6 much shorter ventral setae; 

 latadentes with oraceratubae in each second incisura between plate 

 and second lobe and cephalad of caudal plate of lateres; mesospira- 

 cerores 4-7; lateres dentate, irregular; genacerores 6-8(14-17)9-13. 

 Madagascar on Cocos. nucum Lindgr. 



SPECIES OF CRYPTODIASPIS 



a. Pygidium of adult female with plates, never with pectinae, ar- 

 ranged 0, 1, 1, 6-7, those of each second and third incisura large, 

 much longer than lobes; median pair of lobes narrow, bluntly point- 

 ed, serrate; second and third pairs of lobes incised, lateral lobelets 

 smaller than mesal, all lobelets notched; two altaceratubae on each 

 side opening in prominent latadentes in second and third incisurae; 

 genacerores 4-4(8-10)6-8; second nymphal female with three pairs 

 of lobes and deep pygidial incision; median pair of lobes oblique, 

 mesal margins serrate, not projecting; second and third pairs of 

 lobes incised, broadly truncate; plates arranged 0, 1, 1, 2-3; altacera- 

 tubae four on each side opening in latadentes. Kamerun, Africa 



on Euphorbiaceae. conservans Lindgr. 



aa. Pygidium of adult female with furcapectinae in second and third 

 incisurae; median pair of lobes small, bluntly rounded, faintly 

 notched on mesal margin; second and third pairs of lobes deeply 



