TRIBE ASPIDIOTINI 389 



ff. Pygidium with three groups of genacerores and two 

 pairs of paraphyses; anus located near vulva. Type, 



Odonaspis bambusarum Ckll Berlesaspidiotus MacG. 



cc. Pygidium of adult female never with genacerores. 



d. Pygidium of adult female always with pectinae or plates or 

 both, 

 e. Pygidium always without densariae or paraphyses. 



f. Pygidium with distinct median incisura, median pair of 

 lobes never fused into single lobe. 



g. Pygidium with anus located near proximal end of 

 median pair of lobes, distinctly nearer than midway 

 between vulva and median pair of lobes, 

 h. Body never with pair of large prominent, oval, 

 gland-like areas on dorsal aspect near cephalic end. 

 i. Pygidium with at least three pairs of lobes, sec- 

 ond and third pairs rudimentary, median pair 

 not convergent at distal end. 

 j. Pygidium with normal pointed plates or pec- 

 tinae. Type, Aspidiotus yuccae Ckll 



Neosignoretia MacG. 



jj. Pygidium with cylindrical plates with sub- 

 parallel sides and truncate ends. Type, 



Aspidiotus mauritianus Newst 



Tollaspidiotus MacG. 



ii. Pygidium always with less than three pairs of 

 lobes. 



j. Pygidium with two pairs of lobes, mesal mar- 

 gins of median pair distant and not converg- 

 ent. Cryptaspidiotus Lindgr. 



jj. Pygidium with single pair of lobes, mesal 

 margins of median pair strongly convergent 



or lobes contiguous. Morganella Ckll. 



hh. Body always with pair of large, prominent, oval, 

 gland-like areas on dorsal aspect near cephalic 



end. Pseudotargionia Lindgr. 



gg. Pygidium with anus located distant from proximal 

 ends of median pair of lobes, about midway between 

 vulva and median pair of lobes or nearer to vulva than 

 to lobes. 



h. Pygidium with three or four pairs of lobes, 

 i. Pygidium with four pairs of lobes. 



j. Plates, at least in part, twice as long as me- 

 dian pair of lobes, those of median and sec- 

 ond incisurae a single deeply divided plate. 



Type, Aspidiotus portoricensis Lindgr 



Crenulaspidiotus MacG. 



