THE COCCIDAE 



oraceratubae ; plates distinctly longer than lobes, spine- 

 like, arranged 0, 1, 1, 1. Natal on mango, palm 



natalensis Ckll. 



ff. Pygidium with genacerores 5-5(20-21)38-39; median 

 pair of lobes divergent, not confluent, hardly projecting; 

 second and third pairs of lobes prominent, incised, 

 mesal lobelets larger than lateral, projecting caudad of 

 median lobes, broadly bluntly rounded, entire; plates 

 dagger-shaped, twice or more as long as lobes, arranged 

 0, 1,1, 1; altaceratubae apparently three on each side. 



Dutch East Africa on Dracaena tangana Lindgr. 



cc. Pygidium always without plates in second incisurae, plates 

 spine-like, much longer than lobes, arranged 0, 0, 1, 1; median 

 pair of lobes large, divergent, not confluent, broadly rounded, 

 serrate; second and third pairs of lobes incised, lobelets broadly 

 truncately rounded, entire, mesal lobelets larger than lateral, 

 mesal lobelets of second pair projecting farther caudad than 

 median lobes; setae of median incisura prominent, nearly as 

 long as median lobes; anus located just cephalad of mesogena- 

 cerores, evidently cephalad of vulva; spiracerores apparently 

 wanting; altaceratubae prominent, five on each side; gena- 

 cerores 1-2(6-7)3-4. French Guinea on Macrolobium 



bussi Newst. 



aa. Pygidium always with less than three pairs of lobes, 

 b. Pygidium with two pairs of lobes. 



c. Pygidium with two plates in each second incisura, plates longer 

 than lobes, arranged 0, 2, 4, those of each lateris arranged 

 2-1-1; median pair of lobes prominent, narrow, divergent, lat- 

 eral margin convex, mesal margin concave on distal portion, 

 distal end rounded, entire; second pair of lobes incised, promi- 

 nent, mesal lobelet longer than lateral, slightly broader, proxi- 

 mal portion constricted, distal portion expanded, faintly- 

 notched, lateral lobelet not constricted or expanded or notched; 

 altaceratubae large, five on each side; brevaceratubae con- 

 spicuous; anus and vulva superimposed, anus four times its 

 width from caudal margin; genacerores 7-8(11-14)10-12. India 



on Oryza. decurvata Green. 



cc. Pygidium always with less than two plates in each second 

 incisura. 



d. Pygidium with one plate in each second incisura. 



e. Pygidium with postgenacerores always more than twenty, 

 f. Pygidium with pregenacerores always sixty, or more, 

 genacerores arranged 30-30(63-63)60-70; median pair of 

 lobes large, prominent, oblique, confluent at proximal 

 end, serrate, distal end broadly rounded, entire; sec- 

 ond pair of lobes incised, prominent, narrow, mesal 

 lobelet largest, distal ends bluntly pointed, entire; pro- 

 thorax with ventral transverse row of conspicuous oval 

 scars; plates small, hardly longer than median pair of 



