TRIBE DIASPIDINI 339 



middle of groups of genacerores; mesospiracerores 3-4; altacera- 



tubae present; genacerores 6-8(23-28)28-36. — Uganda, Africa 



chionaspiforviis Newst. 

 aa. Pygidium with two plates adjacent to median pair of lobes; median 

 pair of lobes fused for half their length, deep lateral notch and 

 mesal indentation, forming two prominent rounded lobules; other 

 lobes wanting; plates longer than lobes, arranged 0, 7-8, those of 

 each lateris arranged 2-l-2-l-lto2; each lateris with minute tooth- 

 like projections between groups of plates; group of 5-7 setae near 

 spiracles; dorsal oraceratubae in rows; altaceratubae few in number; 



genacerores 6-11(17-26)20-32. — Uganda, Africa on Cassia 



cassiae Newst. 



SPECIES OF GREENASPIS 



Body of adult female elongate, six or more times as long as wide, head 

 and thorax constituting over one-fourth of length of body, sides of 

 caudal segments of preabdomen strongly produced and bearing two 

 or three plates; pygidium with median pair of lobes prominent, di- 

 vergent, mesal margins emarginate; second pair of lobes incised, 

 mesal lobelet truncate, much larger than lateral; plates stout, 0, 1, 5-6, 

 those of each lateris arranged l-l-l-2to3; genacerores 4-6(8-10)10-10; 

 mesospiracerores 1-2; anus located slightly cephalad of vulva. — Ceylon 

 on Arundinaria. elongata Green. 



SPECIES OF TENUIASPIS 

 Body of adult female small, averaging less than one millimeter; seg- 

 ments of preabdomen without plates; pygidium with median pair of 

 lobes projecting, minute, narrow, bluntly rounded; second pair of 

 lobes incised, minute, inconspicuous; plates comparatively large, twice 

 as long as the lobes, arranged 0, 1, 7-8, those of each lateris arranged 

 l-l-l-4to5; altaceratubae four on each side; brevaceratubae located 

 only near altaceratubae; genacerores 4-6(9-12)8-8; mesospiracerores 

 represented by small group of pores; anus located twice its width 

 cephalad of vulva. — Ceylon on Tetranthera minuta Green. 



SPECIES OF UNASPIS 

 Body of adult female long and narrow, about three times as long as 

 wide, caudal portion widest; pygidium with median pair of lobes pro- 

 jecting, wedge-shaped, lateral margins free, distal ends truncately 

 rounded, entire; second and third pairs of lobes incised, lobelets 

 wedge-shaped, mesal lobelet larger than lateral, margins entire; plates 

 short and stout, arranged 0, 0, 0, 4, those of each lateris arranged 

 1-1-2; altaceratubae six on each side; brevaceratubae nuraerfus, prom- 

 iscuously arranged; genacerores 4-4(6-7)4-5; mesospiracerores repre- 

 sented by small group; anus and vulva superimposed. — Ceylon 



acuminata Green. 



SPECIES OF LINEASPIS 



Pygidium with median pair of lobes plate-like or spine-like, short, dis- 

 tance between them four times their length ; second pair of lobes normal 

 in form, broader than long, broadly rounded; other lobes wanting; 



