41 



Neck proximally moderately elevated; distally weakly elevated as an arm. FCu section of 

 neck absent. AXCu forms entire neck. Proximal margin elevated as a very narrow ridge. 

 Ridge extends to antero-median of the proximal margin of tail; moderately short; enlarged 

 dorsally relative to AXA. Dorsal surface of ridge is curved distad. Medial and distal 

 margins weakly convex; formed by FCu anteriorly and FA posteriorly. Prong armed with 

 a single short tooth; oriented proximo-dorsad; narrow. Detached AXCu fragment saddle- 

 shaped; strongly curved ventrad both anteriorly and posteriorly; slender; moderately 

 sclerotized. 



Tail narrowly deltoid; long; planate. Dorsal surface oriented mesad. Anterior and median 

 section weakly calceolate. Posterior section planate. Window present; weak; occupies most 

 of the tail. FJ+AXJ very slender; occupies distal fifth of tail; moderately sclerotized. Suture 

 line between FJ and AXJ present. Suture line between FA+AXJ and AXA present. AXA 

 more weakly sclerotized than FA+AXJ; the former occupies less than a fifth of the tail; 

 straight. Suture line between AXA and AXCu present. 



Hind Wing Base Description 



First Basal Plate (Fig.70) 



Humeral Plate moderately broad and short. Anterior margin sinuate; strongly sclerotized; 

 lies distant from BScA. Apex very narrow; weakly curved ventrad. Dorsal margin strongly 

 sinuate; distant from BScA. Proximal margin weakly sinuate; curved proximo-ventrad. 

 Ventral margin strongly sinuate. Suture line between FPC+BPC and FC+BC absent. 



Anterior Subcostal Basivenale oriented distad; broadly deltoid; weakly convex. Proximal 

 and distal sections separated by a prominent suture. Proximal section about the same size 

 as the distal section. Apex broadly rounded. Proximal margin extended as a long, narrow 

 rectangle curving postero-ventrad. Distal section continuous with ScA bulge; separated by 

 a weak concavity. - Subcosta Anterior moderately convex. Bulge moderately broad. 



Radial Basivenale convex; open; very weakly discontinuous with radial stem; angled 

 antero-proximad; rectangular. Proximal arch slenderly deltoid; moderately long; angled 

 posteriad; continuous with the anterior margin of BR. Postero-distal section rounded. 

 Anterior margin not elevated above the posterior margin of ScA bulge; broad; straight; 

 angled antero-proximad. Embayment normal size. Distal arch very weakly discontinuous 

 with radial stem; oriented posteriad. br strongly sclerotized; occupies more than half of 

 the proximal arch; discontinuous with BR. br projection small. 



Second Basal Plate (Fig.7 1 ) 



MA-BMA Junction absent. - MP-BMP Junction: MP discontinuous with BMP; arises from 

 below the distal plate. - Crimp Patterns absent. - BMP-CuA Brace present; slender; 

 convex; extends postero-distad from 2BP. Anterior section reduced; fused to the postero- 

 distal corner of 2BP; not fused with BMP or the MP-BMP junction. Posterior section 

 continuous with CuA; fused to the antero-proximal angle of CuA. - BMP-BCuA Brace 

 absent. 



