334 THE COCCIDAE 



d. Pygidium with plates short and slender, arranged 0, 2, 7, 

 those of each lateris arranged 2-2-1-2; median pair of lobes 

 entire, long, narrow, bluntly pointed, spatulate; second pair 

 of lobes incised, mesal lobelet much larger than lateral, 

 slightly smaller than median lobe, similar in shape; gena- 

 cerores 13-13(18-24)14-17; mesospiracerores and metaspira- 

 cerores present; anus and vulva superimposed. Ceylon on 



Andropogon. divergens Green. 



dd. Pygidium with plates slender, arranged 0, 2, 10, those of each 

 lateris arranged 2-2-l-5or6; median pair of lobes elongate, 

 subparallel, distal ends rounded or bluntly pointed, entire; 

 second pair of lobes incised, entire, mesal lobelet much larger 

 than lateral, nearly as wide as median lobe, rounded; gena- 

 cerores 14-16(30-43)20-27; mesospiracerores and metaspira- 

 cerores present; anus superimposed over vulva. Ceylon on 



Andropogon. graminis Green. 



cc. Pygidium with one plate in each second incisura. 



d. Pygidium with distance between median pair of lobes never 

 more than width of median lobe. 



e. Pygidium with fifteen to sixteen plates on each lateris, 

 plates arranged 0, 1, 15-16, those of each second incisura 

 small, those of each lateris arranged 3-2or3-10; median 

 pair of lobes large, rounded, broader than long, distinct 

 lateral notch, narrowly separated; second pair of lobes 

 incised, lobelets subequal, triangular, together much small- 

 er than median lobes; thorax, preabdomen, and pygidium 

 with numerous brevaceratubae ; mesospiracerores repre- 

 sented by large compact groups; genacerores 2-8(23-35) 

 42-65; anus located near mesogenacerores, caudad of vulva. 



British East Africa on wild fig tree fid Newst. 



ee. Pygidium with ten or eleven plates on each lateris. 

 f. Pygidium with two or three plates on each lateris. 



g. Pygidium with postgenacerores 36-46; median pair 

 of lobes as broad as long, broadly rounded, entire; 

 second pair of lobes incised, mesal lobelets nearly as 

 long as median lobe, longer than broad, bluntly 

 pointed, entire, lateral lobelet similar in form but 

 smaller; plates long, much longer than lobes, ar- 

 ranged 0, 1, 3, those of each lateris arranged 1-2; 

 lateres irregular; genacerores 4-9(16-23)36-46. 



South Africa on Chaetachme chaetachmae Brain. 



gg- Pygidium with postgenacerores 8-22. 



h. Pygidium with three plates on each lateris, ar- 

 ranged 1-1-1, plates long, stout, two or three times 

 as long as lobes; median pair of lobes subtriangu- 

 lar, pointed, lateral and mesal margins convex 

 at middle, serrate; second pair of lobes incised, 

 mesal lobelet subquadrangular, distinct mesal and 

 lateral notches, nearly as large as median lobe, 



