324 THE COCCIDAE 



SPECIES OF PROTARGIONIA 



Scale of adult female oval, exuviae located on one side near periphery; 

 pygidium with median pair of lobes short, projecting only slightly, 

 bluntly pointed, faint notches or few crenulations; second pair of lobes 

 hardly projecting, lateral margin oblique; described third pair of lobes 

 not projecting, bearing seta; altaceratubae large, their oraceratubae 

 one in each second incisura, two in third, and two, more distant, 

 cephalad of rudimentary lobes; plates wanting; spiracerores wanting; 

 genacerores 2-2(9-12)7-11; anus three times its width from caudal 

 margin and distant from vulva. Argentina on Larrea larreae Leon. 



SPECIES OF ESSIGASPIS 



Pygidium with lobes, pectinae, and plates wanting; margin broadly 

 undulate; oraceratubae of brevaceratubae very small, numerous, par- 

 ticularly near caudal margin, promiscuously arranged; anus twelve 

 times its width from caudal margin and four times cephalad of vulva; 

 genacerores arranged in almost continuous U-shaped arch, consisting 

 of 20-30 cerores. California on Quercus agrifoliae Essig. 



SPECIES OF SCLOPETASPIS 



a. Pygidium with second pair of lobes not incised; median pair of 

 lobes short, projecting, notched, distant; second pair of lobes simi- 

 lar in form, broader than median pair; third pair of lobes incised, 

 lateral lobelet broader than mesal, lateral margin oblique, dentate, 

 disto-mesal angle prolonged; fourth pair of lobes incised, similar to 

 third pair, broader, distal margin dentate; plates small, inconspic- 

 uous, arranged 0, 1, 2, 2, 3; brevaceratubae in broad interrupted 

 bands; oraceratubae numerous on preabdomen; anus longer than 

 broad, about twenty-four times its width from caudal margin, seven 

 times cephalad of vulva, vulva located on the line drawn between pre- 

 genacerores and postgenacerores; genacerores 15-15(30-30)60-60; meso- 

 spiracerores 10, metaspiracerores 4-5; scale covered with white felt- 

 ed woolly wax. Uganda, Africa on Loranthus laniger Newst. 



aa. Pygidium with second pair of lobes incised, lobelets subequal in size, 

 prominent, projecting, distal ends rounded, entire; median pair of 

 lobes prominent, distant, similar to mesal lobelet of second pair, 

 larger; third and fourth pairs of lobes incised, similar to each 

 other and to second pair, entire; plates small, arranged 0, 1, 1, 1, 5, 

 those of each lateris arranged 1-4; mesospiracerores and metaspira- 

 cerores numerous, about twenty; brevaceratubae arranged in three 

 prominent interrupted rows; margin with three large altaceratubae 

 on each side; genacerores arranged in five large groups; anus oppo- 

 site vulva, vulva located slightly caudad of middle of pygidium; 

 lateral margin of body dilated, forming tubular extension, bearing 

 eye-like spot; cephalic portion of body with numerous chitinized 



patches. Java, Uganda, Africa on sugar-cane 



madiunensis Zehntner. 



SPECIES OF CHIONASPIS 

 a. Pygidium with third pair of lobes not incised. 



b. Pygidium with second pair of lobes not incised, broader than 

 long, with or without slight notches, entire; median pair of lobes 



