310 T. D. A. Cockerell — Descriptions of Tertiary Insects. 



ning parallel. Two cross-veins extend from the media to the 

 hind margin, crossing the cubitus ; the first crossing at its point 

 of forking, the second (which is continuous with the second 

 radio-medial cross-vein) far beyond. 



(6) Two simple anal veins, the cubital cell open. 



(T) A very large alula. 



This arrangement, which is not very different from that of 

 various modern Nemestrinids, strongly suggests that the appar- 

 ent cross-veins are really such, and are not to be interpreted 



Tn enluTO.. 





r ro It i r m o tt LurjL- 



JYfmtotWv,^ A. 



j\\r\ vr^-o n £ «• xeu (3 . 



«H, \>U.\ca.1\i C*. 



M . v/u-lcani'tA. 



Branching of the cubitus. 



«H . da uS*a . 



Branching of the media. 



as longitudinal veins deflected out of their course ; with the 

 exception of the cross-vein seen in modern species at the branch- 

 ing of the media, which is deflected M, whereas the oblique 

 vein reaching it from R s , and looking like a branch of the 

 latter, is nothing but a cross-vein, which is either absent or ob- 

 literated in Prohirmonexira. The cubital cell is thought of as 

 extending nearly or quite to the apex of the wing, and being 

 twice broken by cross- veins (not branches of the cubitus), so 

 that there are three posterior cubital cells, and two between 

 the forks of the cubitus. 



