CONTENTS 



PAGE 



Introduction . . . . . . . ... . 6 



Systematic treatment .'.-. 7 



Genus Paleococcus . 7 



Paleococcus morrilli Ckll. . . . . . . . . 8 



Paleococcus plucheae Ckll. (?). . ... ... 10 



Paleococcus townsendi Ckll. (?) . . . . . . 10 



Genus Icerya . . . . .11 



Icerya rileyi Ckll 12 



Genus Stomacoccus . . . . . . . . . .13 



Stomacoccus platani Ferris . . . . . . .13 



Genus Xylococcus . . . . . . . . . .13 



Xylococcus macrocarpae Coleman . . . . . .13 



Genus Orthezia . . . . . . . . . .13 



Orthezia nuda n. sp. . . . . . . . . .13 



Orthezia graminis Tinsley . . . . . . .14 



Orthezia annae Ckll. . . . ' 14 



Orthezia sp. .......... 14 



Genus Lecaniodiaspis ......... 14 



Lecaniodiaspis rufescens (Ckll.) (?) . . . . .14 



Lecaniodiaspis sp. . . 15 



Genus Olliffiella 15 



Olliffiella cristicola Ckll 15 



Genus Eriococcus . . . . . . . . . .17 



Eriococcus bahiae Ehrh 18 



Eriococcus gillettei Tinsley ....... 18 



Eriococcus tinsleyi Ckll. ........ 18 



Genus Fonscolombia 18 



Fonscolombia yuccae n. sp. . . . . . 18 



Genus Dactylopius .......... 19 



Dactylopius confusus (Ckll.) 20 



Dactylopius indicus (Green) 20 



Dactylopius tomentosus (Lam.) ...... 20 



Genus Puto 20 



Puto yuccae (Coq.) ......... 20 



Genus Phenacoccus 20 



Phenacoccus betheli Ckll 20 



Phenacoccus helianthi (Ckll.) 22 



