356 THE COCCIDAE 



anus located on line drawn through cephalic end of 

 postgenacerores. District of Columbia, England on 

 Cycas, Dion, palms cycadis Comst. 



ff. Pygidium with second pair of lobes small, not incised, 

 long, narrow, finely serrate; median pair of lobes nar- 

 row, divergent, confluent at proximal end, serrate; 

 plates four on each side of median lobes, simple, spine- 

 like, caudal three situated between median lobes and 

 third row of brevaceratubae, arranged 0, 0, 4; breva- 

 ceratubae with 2 oraceratubae in second row, third row 

 with 4-6 mesal and 5-7 lateral, fourth row with 4-5 mesal 

 and 6-7 lateral, and fifth row with 5 mesal and 6 lateral 

 oraceratubae; anus located near mesogenacerores, seven 

 times its width from caudal margin and about twice 

 cephalad of vulva; mesospiracerores 6-10, metaspira- 

 cerores 4-6; genacerores in eight groups, 2-4(14-20)21- 

 25, three cephalic groups of 2-5 each. New South Wales 

 on Coprosoma. argentosis Brittin. 



ee. Pygidium with median pair of lobes as far apart as width 

 of a median lobe. 



f. Pygidium with plate in each second incisura, plates 

 twice as long as lobes, arranged 0, 1, 2; median pair of 

 lobes distant, distal margin rounded, serrate; second pair 

 of lobes incised, mesal lobelet twice as large as lateral, 

 projecting slightly beyond median, distal end blunt, 

 lateral lobelet triangular; brevaceratubae prominent; 

 genacerores in eight groups, 2-5(11-17)17-27, three 

 groups cephalad of mesogenacerores, distant, in trans- 

 verse row, 3-4 cerores. Natal on Carissa 



carissae Ckll. 



ff. Pygidium without plates in second incisurae, plates 

 small, inconspicuous, arranged 0, 0, 2; median pair of 

 lobes rounded, broad, distant, angles rounded, margins 

 entire; second pair of lobes small, incised, mesal lobe- 

 let slightly larger than lateral, triangular, entire; each 

 lateris with triangular lobe-like projections, arranged in 

 pairs; mesospiracerores 6-10; genacerores in eight 

 groups, arranged 1-10(14-20)23-36, three cephalic groups 

 of 4-9, 1-6, and 5-8 cerores. Natal, Africa on Kiggelaria, 

 willow. Jciggelariae Brain. 



dd. Pygidium with single pair of lobes; median pair of lobes 

 long, broad, divergent, not confluent, apparently entire; 

 plates apparently wanting; three or four large setae on 

 each side may be plates; brevaceratubae represented by three 

 distinct rows, third to fifth, on each side; anus about six 

 times its width from caudal margin and nearly twice 

 cephalad of vulva; lateres irregular; genacerores in eight 

 groups, arranged 4-6(20-30)20-30, three other groups in trans- 



