53 



Neck elevated proximally; depressed distally. FCu section of neck absent. AXCu forms 

 the entire neck. Proximal margin elevated as a broad ridge. Ridge extends to postero- 

 median of the proximal margin of the tail; moderately long; enlarged dorsally relative to 

 tail. Dorsal surface of the ridge is curved distad. Embayment deep; extends to the medial 

 margin of the tail. Prong armed with a single tooth; oriented proximo-dorsad. Detached 

 AXCu fragment slender; deltoid; moderately sclerotized. 



Tail deltoid; broad; short; planate. Dorsal surface oriented mesad. Window absent. FJ+AXJ 

 narrow; occupies 'the distal half of the tail; weakly sclerotized. Suture line between FJ and 

 AXJ absent. Suture line between FA+AXJ and AXA present. AXA as equally sclerotized 

 as FA+AXJ; the former occupies the postero-proximal half of the tail; straight. Suture line 

 between AXA and AXCu present. 



Hind Wing Base Description 



First Basal Plate (Fig.84) 



Humeral Plate slender. Anterior margin convex; lies distant from BScA. Apex slender; 

 ovoid; oriented proximad. Dorsal margin convex. Proximal margin convex; curved 

 proximo-ventrad. Ventral margin concave. Suture line between FPC+BPC and FC+BC 

 present. FPC+BPC formed as a moderately large sclerite below the ventro-proximal margin 

 of FC+BC. 



Anterior Subcostal Basivenale broadly deltoid; convex; moderately elevated. Proximal and 

 distal sections separated by a prominent suture. Proximal section extended postero-ventrad 

 as a very broad convexity; about as large as the distal section. Distal section discontinuous 

 with the ScA bulge; separated by a narrow but deep concavity. Apex broadly rounded; 

 oriented distad. - Subcosta Anterior convex. Bulge moderately broad; distinct. 



Radial Basivenale large; strongly convex; open; discontinuous with the radial stem; angled 

 proximad; very strongly recurved; moderately broadly rectangular. Arises from the radial 

 stem and curves very strongly dorsad away from both ScA and BScA. Proximal arch 

 strikingly broad; angled posteriad; deltoid; posteriorly strongly extended proximad and 

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

 Posterior margin extremely broad; deeply concave; surrounds the terminus of BMA 

 proximal arch. Anterior margin strongly elevated above the posterior margin of the ScA 

 bulge and BScA; narrow; convex; angled antero-distad; continuous with the distal arch. 

 Embayment normal size. Distal arch very weak; discontinuous with the radial stem; very 

 narrow; strongly recurved; oriented posteriad. br strongly sclerotized; large; rectangular; 

 occupies one-half of the proximal arch; discontinuous with BR; posteriorly extended 

 postero-proximad. br projection distinct from B Sc as a slender extension; oriented antero- 

 ventrad. 



Second Basal Plate (Fig.85) 



MA-BMA Junction absent. - MP-BMP Junction: MP only very weakly continuous with 

 the anterior margin of BMP; arises from below the distal plate. - Crimp Patterns absent. 

 - BMP-CuA Brace absent. 



