394 THE COCCIDAE 



gg. Pygidium with two groups of genacerores; scale of 



adult female never capsulate Selcnaspidus Ckll. 



ee. Pygidium always with paraphyses. — Type, Pseudaonidea 



clavigera Ckll. Duplaspidiotus MacG. 



dd. Pygidium with dorsal aspect always with lattice-shaped 

 thickenings. 



e. Pygidium with four or five groups of genacerores 



Pscudaonidia Ckll. 



ee. Pygidium with two groups of genacerores. 



f. Pygidium without paraphyses. — Type, Pscudaonidia pae- 



onia Ckll. ^ Pseudaonidiella MacG. 



S. Pygidium with paraphyses. — Type, Chrysomphalus mal- 

 leolus Green. Paraonidia MacG. 



cc. Pygidium of adult female never with genacerores. 

 d. Pygidium always with pectinae or plates or both, 

 e. Pygidium always without paraphyses. 



f. Pygidium always without lattice-shaped thickenings. 



g. Head and prothorax forming area much broader than 

 remainder of body, head never with deep mesal incis- 

 ion. — Type, Pseudaonidia magna Lindgr 



Entaspidiotus MacG. 

 gg. Head and prothorax forming area much narrower than 

 area formed by combination of preabdomen and re- 

 maining thoracic segments; head with deep mesal in- 

 cision. Schizaspis Ckll. & Robs. 



ff. Pygidium with lattice-shaped thickenings. — Type, Pseud- 

 aonidia lycii Brain. Amhigaspis MacG. 



ee. Pygidium always with paraphyses and lattice-shaped thick- 

 enings. — Type, Pseudaonidia tesserata Charm 



Lattaspidiotus MacG. 



dd. Pygidium always without pectinae or plates. 



e. Pygidium with four pairs of lobes and without paraphyses; 

 segments of preabdomen distinctly constricted. — Type, 

 Aspidiotus artocarpi Green. Partargionia MacG. 



ee. Pygidium with less than four pairs of lobes. 



f. Pygidium always with three pairs of lobes and single pair 

 of paraphyses; preabdomen with transverse constriction 

 between first and second segments. — Type, Aspidiotus 



moorei Green. Parrottia MacG. 



ff. Pygidium with single pair of lobes and without paraphy- 

 ses; preabdomen not with transverse constriction be- 

 tween first and second segments.- -Nronrorgania MacG. 

 aa. Body of adult female always enclosed in puparium; pygidium of 

 adult female frequently with pseudolobes, often with asymmetrically 

 arranged projections, rarely with lobes and plates or pectinae. 



