TRIBE ASPIDIOTINI 421 



d. Pygidium with second, third, and fourth pairs of paraphyses 

 subequal in length. 



e. Pygidium with each lateris not deeply notched; paraphyses 

 long, subequal, all much longer than lobes; median pair of 

 lobes quadrangular, bluntly rounded, distinct mesal and 

 lateral notches; second and third pairs of lobes similar 

 but smaller; pectinae not deeply lacinate, arranged 2, 2, 3, 

 1-2, those of median incisura narrow, distapectinae, all 

 others unapectinae; each lateris with seven tooth-like pro- 

 jections; genacerores (9-12)8-9, according to Brain (7-9) 

 3-5. Chrysomphalus rossi victoriae Ckll. Australia, New 

 Zealand, Philippine Islands, Japan, China, Ceylon, South 

 Africa on Xanthorrhoea, Eucalyptus, Nerium, Caffaris, 

 Rhinocarpus, Acacia, Araucaria, Abutilon, Artemesia, olive, 



plum, etc. rossi Mask. 



ee. Pygidium with each lateris deeply notched or "bayed in;" 

 genacerores (9-14)7-11. Ceylon, South Africa on Capparis, 



Chaetachme. rossi greeni Brain & Kelly. 



dd. Pygidium with second pair of paraphyses twice as long as 

 either third or fourth pairs. 



e. Pygidium with second and third pairs of lobes subequal to 

 or narrower than median pair; median pair of lobes short 

 and broad, lateral margin long, oblique, rounded, entire; 

 second and third pairs of lobes similar, faintly notched; 

 pectinae short, distapectinae, arranged 2, 2, 2, 5, those of 

 each lateris arranged 2-1-1-1; each lateris with about six 

 tooth-like projections; paraphyses variable in length, first, 

 third, fourth, sixth, seventh, and ninth subequal in length, 

 shorter than second, fifth, and eighth, fifth longest, second 

 dilated at cephalic end; genacerores 4-8(15-16)8-11. Mex- 

 ico on "Trueno." nigropunctatus Ckll. 



ee. Pygidium with second and third pairs of lobes wider than 

 median; median pair of lobes contiguous, widened; third 

 pair of lobes subequal to second; second incisurae less than 

 one-half width of median lobe; third incisurae equal to 

 width of median lobe; each incisura with angular pro- 

 jection, cephalad of this serrate; this species is allied to 

 nigropunctatus; paraphyses are not described; genacerores 

 (13-16)8-8. Mexico on Agave agavis Towns. & Ckll. 



SPECIES OF PSEUDISCHNASPIS 



Pygidium with six pairs of paraphyses, first and third pairs sub- 

 equal, second and fifth pairs subequal and three times as long as first; 

 fourth and sixth pairs subequal and about twice as long as first, 

 median pair of lobes subquadrangular, broadly rounded, distal mar- 

 gin with two notches; second and third pairs of lobes broader than 

 median, third broader than second, lateral margin oblique, serrate; 

 furcapectinae arranged 1, 2, 2, 1-3; lateres thickened and toothed; 

 genacerores (6-8)4-7. Brazil on Myrcia. linearis Hemp. 



