400 THE COCCIDAE 



39)31-35; ordinarily with one to five cerores between 

 anterior groups. Brazil on Drymus. See next species. 



pisai Hemp. 



ff. Pygidium with four pairs of lobes; scale of adult female 

 more or less circular, flattened, exuviae placed little to 

 one side of center; median pair of lobes smallest; sec- 

 ond, third, and fourth pairs deeply incised, mesal lobelet 

 of second and third pairs largest, lobelets of third pair 

 subequal; plates and pectinae arranged 2, 1, 1, 1, 12, 

 median incisura with plates, other incisurae with furca- 

 pectinae, and lateres with plates grouped near fourth 

 lobe; genacerores 16-18(16-30)16-21; also two to three 

 glands at sides of pregenacerores. Brazil on Drymus. 

 This species and the preceeding one do not appear like 



species of this tribe moreirai Hemp. 



cc. Pygidium with third pair of lobes with margins notched. 



d. Pygidium with four or five groups of genacerores, if with 

 four groups, number of cerores in groups very dissimilar. 

 e. Pygidium with six or more pectinae on each lateris. 

 f. Pygidium with three pectinae in each third incisura. 

 g:. Pygidium with second and third pairs of lobes dis- 

 tinctly broader than long; median pair of lobes pro- 

 jecting, bluntly rounded, faint lateral notch; second 

 and third pairs of lobes much shorter than median, 

 lateral margin strongly oblique, finely serrate; pec- 

 tinae subequal in length to lobes, arranged 2, 2, 3, 7, 

 those of each lateris unapectinae; genacerores 4-5(7- 

 8)4-5. Japan on Cryptomeria._-cn/pomeriae Kuwn. 

 gg. Pygidium with second and third pairs of lobes dis- 

 tinctly longer than broad. 



h. Pygidium with anus distant from caudal margin 

 about four times its width. 



i. Pygidium with two pectinae in median incisura. 

 j. Pygidium with longest linaceratubae not 

 more than four times as long as wide; me- 

 dian pair of lobes round, large lateral and 

 smaller mesal notches; second and third pairs 

 of lobes variable in form, second pair round- 

 ed and notched, third pair bluntly pointed, 

 faintly notched; pectinae longer than lobes, 

 arranged 2. 2, 3, 6, those of median and sec- 

 ond incisurae and caudal pectina of third in- 

 cisurae distapectinae, others unapectinae; gen- 

 acerores ( 8-15 ) 4-10. Aspididiotus hederae 

 simplex Charm. Canada, United States, Mex- 

 ico, West Indies, Southern Europe, Africa, 

 Australia, etc. on orange, lemon, olive, palms, 

 orchids, cherry, plum, currant, maple, and 

 many other plants hederae Vail. 



