TRIBE LEPIDOSAPHINI 277 



c. Pygidium with second and third pairs of lobes denticulate at 

 distal end; median pair of lohes obliquely truncate at disttal 

 end; lateres bearing f urcapectinae ; genacerores 8-11(20-22)20- 



22. Australia on Banksia. banksiae Mask. 



cc. Pygidium with lobes broadly rounded at distal end and notched 

 on mesal and lateral margins; lateres bearing plates; gena- 

 cerores in five confused groups, 13-13(20-22)16-18. Pinnaspis 

 nitidus Brittin (Green.) New Zealand on Dysoxylum, Ather- 



osperma, Coprosoma, Rhipogonium, Pinus. pyriformis Mask. 



bb. Pygidium with plates, never with f urcapectinae between lobes; 

 lobes notched or coarsely crenulate; second and third pairs much 

 smaller than first; plates large and prominent, arranged 2, 2, 3, 

 4-6; genacerores 14-14(23-31)21-21. New Zealand on Leptosper- 



mum. leptospermi Mask. 



aa. Pygidium with second pair of lobes incised. 



b. Pygidium with third pair of lobes incised, at most only deeply 

 notched on lateral margin. 



c. Pygidium with each second and third incisura with two 

 plates, also median incisura, and four on each lateris arranged 

 in two groups of two each; median pair of lobes deeply 

 notched on lateral margin, second and third pairs faintly 

 notched; genacerores 9-11(19-26)18-25; mesospiracerores 9-14. 



Australia on Eucalyptus. bicornis Green & Lidg. 



cc. Pygidium with each second and third incisura with single 

 plate. 



d. Pygidium with two hair-like plates between median pair of 

 lobes; plates arranged 2, 1, 1, 6, those of each lateris ar- 

 ranged in three equidistant groups of two each; median pair 

 of lobes with two small lateral notches, second with single 

 deep lateral notch, and third with two small notches; gena- 

 cerores 7-7(10-12)10-12, five groups adjacent!. Lepidosaphes 



fuller! Fern. Australia on Banksia elongata Fuller. 



dd. Pygidium with two plates between median pair of lobes as 

 long as other plates and longer than median pair of lobes; 

 plates arranged 2, 1, 1, 2, those of each laJteris situated, one 

 near third lobe and other near middle of lateris; median 

 pair of lobes oblique, large, finely serrate, set in emargina- 

 tion; second pair of lobes large, truncately rounded, finely 

 serrate, mesal lobelet as large or larger than median lobe; 

 third pair of lobes comparatively large, truncately rounded, 

 finely serrate, subequal t,o lateral loblet of second pair; 



genacerores 0-7(7-7)3-3. South Africa on Loranthus 



kamerunensis Lindgr. 

 bb. Pygidium with third pair of lobes incised. 



c. Pygidium with third pair of lobes not consisting of more than 

 three lobelets. 



d. Pygidium with each third lobe divided into two lobelets. 

 e. Pygidium with median pair of lobes with one notch on 

 mesal and two on lateral margin. 



