250 THE COCCIDAE 



of lobes with mesal and lateral notches; fourth pair 

 of lobes variable in size and form, always shorter than 

 third, subequal in width, usually pointed or tridentate; 

 distapectinae broad and filling incisurae. District of 

 Columbia, Florida, Louisiana, Ohio, Kansas, California, 

 Mexico, Hawaiian Islands, Japan, Europe, Algeria, Cey- 

 lon on Japonica, lemon, orange. pergandei Comst. 



ee. Scale of adult female with secretionary portion pale trans- 

 parent ochreous and exuviae bright castaneous or brown- 

 ish orange with broad black mesal band; pygidium as in 



typical specimens. Ceylon on Phyllanthus 



pergandei phyllantM Green. 



dd. Pygidium of adult female with genacerores (6-6)5-5; scale 

 pale to dark slate color, exuviae yellowish; median, second, 

 and third pairs of lobes narrow, bluntly rounded, with mesal 

 and lateral notches; fourth pair of lobes minute, similar in 

 general form to third, distinctly pointed, notched; dista- 

 pectinae subequal in length with lobes, filling incisurae. 

 Philippine Islands on Cocus greeni Banks. 



bb. Pygidium with three pairs of lobes. 



c. Pygidium with four distinct groups of genacerores. 

 d. Pygidium with third pair of lobes not notched. 



e. Pygidium with the median and second pair of lobes of 

 adult female faintly notched, third pair with distal end 

 rounded, sides subparallel; pectinae of unapectina type; 

 scale of adult female elongate, very wide, slate-gray, 

 exuviae dark brown. West Australia on Petrophila, 



Hakea. petrophilae Fuller. 



ee. Pygidium with all three pairs of lobes of adult female 

 obliquely truncate, mesal margin longer than lateral, 

 entire; fourth pair of lobes represented by broadly 

 rounded area; pectinae narrow, hardly as long as lobes, 

 finely toothed; scale of adult female pale yellow or brown- 

 ish, exuviae yellow; mesospiracerores 2, metaspiracerores 

 wanting; genacerores (10-14)9-14; anus located nearer 

 transverse line drawn midway between vulva and caudal 

 margin than vulva; altaceratuba 19, one mesal and nine 



on each side. Ceylon on Flacourtia, Scolopia 



cingala Green, 

 dd. Pygidium with all lobes notched. 



e. Pygidium with each group of pregenacerores consisting 

 of about twenty cerores; scale circular or ovate, brownish, 

 exuviae brownish or greenish; genacerores (21-23)12-18. 



Japan on Euonymus. thea euonymi Ckll. 



ee. Pygidium with each group of pregenacerores consisting 

 of fifteen cerores or less. 



f. Pygidium of adult female with median pair of lobes 

 elongate, pointed, mesal and lateral margins crenulate; 



