TRIBE FIORINIINI 373 



d. Pygidium narrow, caudal end convex, not hollowed out; me- 

 dian pair of lobes prominent, longer than broad, sides paral- 

 lel, distal end bluntly rounded; plates long and slender, much 

 longer than lobes, arranged 2, 2, those of each lateris adja- 

 cent to median lobe; lateres cephalad of cephalic plates finely 

 serrate and without projections; setae minute, not one-half 

 length of plates; genacerores 3-3(3-4)3-3; mesospiracerores 

 obsolete. Ceylon. bidens Green. 



dd. Pygidium comparatively broad, caudal end deeply hollowed 

 out; median pair of lobes widely divergent, strongly oblique, 

 located in concavity, mesal margins with four to six teeth, 

 other lobes wanting; plates arranged 2, 4, those of median 

 incisura short, much shorter than median lobes, those of each 

 lateris arranged in two groups of two each, one group near 

 median lobe; each lateris with angular projections; gena- 

 cerores 5-6(10-10)10-13. Philippine Islands on Machilus 



phantosura Ckll. & Rob. 



cc. Pygidium without plates between the median pair of lobes, 

 d. Pygidium with five groups of genacerores combined into a 

 single omnagenaceroris, total number of cerores 25-29 ; median 

 pair of lobes small, short and narrow, deeply angularly 

 notched at middle of distal margin; second pair of lobes 

 minute, hardly produced; plates long, broad at base, much 

 longer than the lobes, arranged 0, 1, 6 to 7, those of each 

 lateris arranged 1-1-4 or 1-3-3; genacerores 5-5(7-10)10-14; 

 spiracerores obsolete. Ceylon on Odina odinae Leon. 



dd. Pygidium with genacerores combined into a single large 

 omnaceroris, total number of cerores 86-91. India on Taxus. 



odinae multipora Lindgr. 



bb. Pygidium with median pair of lobes fused at proximal end. 

 c. Pygidium with three pairs of lobes. 



d. Pygidium with each second lobe doubly incised, three lobe- 

 lets subequal, entire, distal end bluntly rounded, median pair 

 of lobes strongly oblique, inserted in deep concavity, mesal 

 margin of each finely serrate; third pair of lobes about as 

 large and similar in shape to lateral lobelet of second lobe; 

 plates arranged 0, 1, 1, 0, long and slender, much longer than 

 lobes; genacerores 7-7(13-14)17-17; mesospiracerores 2-3. 

 Ceylon on Juniperus. juniperi Leon. 



dd. Pygidium with each second lobe not incised. 



e. Pygidium with genacerores 10-11(22-28)16-27; median pair 

 of lobes small, adjacent, margins strongly dentate; second 

 pair of lobes elongate, sometimes spatulate, distal end 

 truncate; third pair of lobes similar in length to the sec- 

 ond pair, long and narrow, distal end rounded; plates ar- 

 ranged 0, 1, 1, 2, plates more than twice as long as the 

 lobes, those of each lateris arranged, one short distance 

 cephalad of third lobe and one at cephalic end; second 

 and third incisurae with projections as large or larger than 



