TRIBE LEPIDOSAPHINI 281 



d. Pygidium with single plate in each second incisura. 



e. Pygidium. with furcapectinae on each lateris; plates and 

 pectinae arranged 2, 1, 6, those of each lateris situated, 

 two plates adjacent to each second lobe, four pectinae in 

 two groups of two each equidistant from each other and 

 caudal group of plates; median pair of lobes small, round- 

 ed, notched; second pair of lobes rounded, incised, lobe- 

 lets entire or finely notched; genacerores 4-4(6-7)4-5. 

 Ceylon on Lasianthus. lasianthi Green. 



ee. Pygidium with plates on each lateris, never with furca- 

 pectinae. 



f. Pygidium with plates located on each lateris at caudal 

 end, at cephalic end, and near middle, one of groups 

 sometimes wanting. 



g. Pygidium with genacerores 6-6(10-12)8-10; median 

 pair of lobes not especially large, rounded at ends, 

 with minute lateral lobelets; second pair of lobes in- 

 cised, mesal lobelet larger than lateral; plates ar- 

 ranged 2, 1, 3, those of each lateris situated, one 

 near each second lobe, one near middle, and one at 

 cephalic end. Mexico on "Laurel-tree", Yucca, 



Agave. nigra Ckll. 



gg- Pygidium with genacerores 3-4(6-6)4-4. 



h. Pygidium with median pair of lobes oblique, fair- 

 ly large, bluntly rounded, margins finely serrate; 

 second pair of lobes large, incised, each mesal 

 lobelet larger than median lobe, bluntly rounded, 

 margin finely serrate; plates arranged 2, 1, 3, 

 those of each lateris large and broad, situated one 

 near each second lobe, one near middle, and one 

 at cephalic end; plates of median and second in- 

 cisurae large, as long as or longer than lobes. 



South Africa on Macrolobium tenuior Lindgr. 



hh. Pygidium with median pair of lobes broadly sepa- 

 rated, not oblique, margins with mesal and lat- 

 eral notches, with a median pointed process; 

 second pair of lobes incised, mesal lobelet much 

 larger than lateral and one-third width of median 

 lobe; plates arranged 2, 1-0, 4, those of each 

 lateris large and broad, in two groups of two 

 plates each, one group near cephalic end and 

 other midway between cephalic group and second 

 lobe; plates of median incisura slender, longer 

 than lobes; each second incisura with blunt pro- 

 jection bearing an oraceratuba; anus located ce- 

 phalad of mesogenacerores. Ceylon on Hevea. 



fasciata Green. 



ff. Pygidium with plates on each lateris at caudal end 

 only; plates arranged 2, 1, 1-2, long, as long as lobes, 

 broad at proximal end; median pair of lobes large, 



