348 A REVISION OF THE SUBFAMILY L1BELLULIN.E. 



/'. Last antenodal cross nervure. 



(J. Postnodal cross nervures. 



c-h. Principal radius, or subcostal nervure. 



k. Upper basal cell. 



kk. Lower basal cell. 



/. Arculus. 



1-s. Upper sector of the arculus. 



l-t. Lower sector of the arculus. 



m-n. Subcostal radius. 



m-o. Nodal sector. 



m~i). Subnodal sector. 



q. Supratriangular nervures. 



/'. Triangle. 



u. Posttriangular cells. 



v-w. Upper sector of the triangle. 



v-ww. Lower sector of the triangle. 



.T. Subtriangular space. 



I/. Subbasal sectors. 



2. Membranule. 



