BY H. J. TILF-YARD. 



747 



Genus M e s o p a n o r p a , 



(Textfig.lO). 



Characters as for the family, with the following additions. 

 Rather small insects, wings about 8 mm. long. Sc well-devel- 

 oped, running into the pterostigma; its distal end somewhat 

 indistinct. R4+5 and M1 + 2 connected just before midway by a 

 strong cross-vein, towards which both are somewhat bent at 

 their points of junction with it. The levels of the forkings of 

 these two veins are the same, and lie much further distad than 

 the levels of the forkings of both Pv2+3 and M3+4. The fourth 

 apical fork, between Mg and M4, is exceptionally broad. 



Genotype, Mesopanorpa u'ianamaMensis, n.sp. 



Cu 

 Text-fig. 10. 

 Mt'sopanorpa irianamatteusis, n.g. et sp., (length of fragment 7 



nun.). 



Glenlee; Triassic; pf, pterostigmatic furrow; pt, pterostigma. 



Mesopanorpa wiANAMATTKNsis, n.sp. (Text-fig. 10). 



An almost complete wing, well preserved, but with the ex- 

 treme base and the anal area missing as far as the whole of lA. 

 Total length of fragment, 7 5 mm., (complete wing probably 8 or 

 8-5mm.). Greatest b7'eadth, 3mm., in region of pterostigma. Pro- 

 bably three strong cross-veins in costal space; three weak ones 

 in pterostigma, and a number of weak ones placed irregularly on 

 the wing, as indicated in Text-fig. 10. Rs arising from R at a 

 level slightly distad from that of the origin of M from Cu. 



Type, Specimen No. 5 in Coll. Mitchell. The impression is 



