322 THE COCCIDAE 



ginal serrations; plates of second incisurae sub- 

 equal in length to median pair of lobes, others larger, 

 arranged 0, 1, 1, 6, those of each lateris arranged 

 1-1-1- ( 1-1-1 ) ; genacerores 8-8(16-16)10-10. — Texas on 



Sophora. texcnsis Ckll. 



ft. Pygidium without plates in each third incisurae, plates 

 arranged 0, 1, 0, 4, those of each lateris arranged 

 1-(1-1)-1, subequal in length to lobes; latadentes lo- 

 cated in median, second, and third incisurae, and three 

 on each lateris; median pair of lobes longer than broad, 

 serrate, mesal margin oblique; second and third pairs 

 of lobes incised, lobelets entire, mesal lobelet larger 

 than lateral, distal end of mesal round, of lateral sub- 

 truncate; anus located nearly midway between vulva 

 and caudal margin; each lateris with lobe-like projec- 

 tions, caudal one serrate; genacerores (18-23)16-20. — 



Senegal, Africa on Khaya senegalensis Vays. 



ee. Pygidium not with plate in each second incisura, plates 

 short, hardly longer than lobes, arranged 0, 0, 1, 9-13, those 

 of each lateris arranged l-3or4-6or9; median pair of 

 lobes largest, oblique, serrate; second and third pairs of 

 lobes subequal and subsimilar, incised, mesal lobelet three 

 or more times as large as lateral; five altaceratubae on 

 each side and similar mesal one; lateris irregular and 

 lobe-like opposite cephalic oraceratubae of fourth and 

 fifth altaceratubae; anus about midway between caudal 

 margin and vulva, over six times its width from caudal 

 margin; genacerores 6-10(9-16)6-10. — California on Man- 



zanita, Acrostaphylos. manzanitae Whitney. 



l)b. Pygidium with median pair of lobes distinctly smaller than mesal 

 lobelet of second pair of lobes or of second pair if not incised, 

 if apparently subequal, cephalic end of body with blunt mesal 

 plate-like structure. 



c. Pygidium with second pair of lobes not incised, as broad as 

 long, broadly rounded, entire, projecting farther caudad than 

 median pair; median pair of lobes small, subtriangular, distal 

 portion notched; third pair of lobes wanting; plates longer 

 than lobes, arranged 0, 1, 8, those of each lateris arranged 

 2-1-1-4; oraceratubae in three groups, located between groups 

 of plates of each lateris; dorsal setae large; genacerores 8-8 



(12-13)8-8. — Canary Islands on Juniperus. atlantica Lindgr. 



cc. Pygidium with second pair of lobes deeply incised. 



d. Body with cephalic margin with single, short, conical, trun- 

 cate, plate-like, mesal projection ; median pair of lobes dis- 

 tant, divergent, lateral margin straight, mesal margin 

 oblique and serrate, subequal to or slightly larger than 

 mesal lobelet of second pair; second pair of lobes incised, 

 entire, truncate with rounded angles, mesal lobelet slightly 

 larger than lateral; third pair of lobes incised, similar in 

 form to second pair, smaller, lateral lobelet sometimes with 



