BY E. J. TILLYARD. 281 



branch or cross-vein descending from near the first dichotomy to the apex of 

 Cu2; in P. belmontensis this branch appears as a definite oblique cross-vein 

 leaving Cui considerably distad from the first dichotomy, and reaching Cu2 well 

 before its apex; the second dichotomy of Cui occurs much closer to the first in 

 the new species than it does in P. belmontensis. M appears to be definitely fused 

 basally with R, and the arrangement of the cross-veins between R, M and Cui 

 shows considerable differences from the condition seen in P. belmontensis. 



In comparing the new species with P. belmontensis {op. cit., p. 730 and 

 Text-fig. 3), it is necessary to point out that, in my former paper, I had con- 

 sidered the vena dividens to be lA, and consequently assumed 3A to be two- 

 branched. This was an error, and the description and Text-fig. of my former 

 paper need to be altered so that the vena dividens becomes Cu2, as in all Homo- 

 ptera, the three anal or claval veins becoming lA, 2A and 3A respectively. 



Text-fig. 1. Permofulgor indisthutiis , n.sp. 

 Text-fig. 2. Pincombea mirabilis , n.g. etsp. 

 For lettering see p. 260. 



(x8.6). 

 (x33). 



Type, Unnumbered specimen in Mr. Mitchell's Collection. Label: — "Wing, 

 Newcastle Measures" (in ink); "Loe. Nr. Belmont" (in pencil). 

 Horizon. — Upper Permian of Belmont, N.S.W;. 



