115 



Median Plate (Fig. 187) 



FM1 oriented strongly postero-proximad. Anterior to posterior section extremely narrow 

 and very long. Proximal mctrgin straight. Articulation with 2Ax extends along the distal 

 margin of the distal ridge over the posterior section of the ventral ridge. Distal margin 

 extremely narrowly and weakly fused to 3Ax. FM2 absent. 



Third Axillary (Fig. 188) 



Head weakly convex; normal length; strikingly bi-lobed, embay ment strong. Proximal 

 margin strikingly deeply concave. Anterior margin very deeply concave; broad; narrow, 

 not enlarged ventrally; from the proximal angle it slopes very strongly antero-distad. 

 Embayment curves postero-distad. Antero-proximal margin strongly extended proximad as 

 a lobe. Proximal lobe weakly convex; long; moderately narrow. Antero-distal margin 

 strongly extended anteriad as a lobe. Distal lobe very strongly convex; moderately broad 

 and long. AXCu occupies the proximal one-third of the proximal lobe; convex. FCu 

 strikingly reduced distally; moderately large; distinct; occupies distal two-thirds of the 

 proximal lobe and the proximal one-half of the distal lobe. FA moderately narrow; occupies 

 the distal one-half of the distal lobe. Anterior margin entire. Suture line between FCu and 

 FA present. Suture line between FCu and AXCu present. Suture line between FA and FJ 

 absent. Head and neck junction strikingly reduced, extremely narrow. 



Neck elevated proximally and weakly so distally. FCu section of neck absent. AXCu forms 

 entire neck; extremely small. Proximal margin elevated as a very narrow and short ridge. 

 Ridge extends to median of the proximal margin of tail; very short. Dorsal surface of ridge 

 is strongly curved distad over the distal margin of the tail and strongly curved ventrad 

 reducing the width of the tail; enlarged dorsally relative to AXA. Prong armed with a 

 single broad but short tooth; oriented postero-dorsad. Detached AXCu fragment saddle- 

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

 sclerotized. 



Tail reduced; extremely narrow; very short. Dorsal surface oriented laterad. Window 

 absent. FJ+AXJ extremely narrow and short; occupies the anterior half of the tail; 

 moderately sclerotized; curved ventrad. Suture line between FJ and AXJ absent. Suture 

 line between FA+AXJ and AXA present. AXA extremely short and narrow; more strongly 

 sclerotized than FA+AXJ; occupies the posterior half of the tail; curved postero-distad. 

 Suture line between AXA and AXCu present. 



Hind Wing Base Description 



First Basal Plate (Fig. 189) 



Humeral Plate very broad and moderately short. Anterior margin convex; strongly 

 sclerotized; adjacent to BScA. Apex clavate; moderately broad; weakly curved ventrad. 

 Dorsal margin convex. Proximal margin deeply concave; strongly curved ventro-proximad. 

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



Anterior Subcostal Basivenale oriented distad; rectangular; convex; moderately elevated 

 dorsad. Proximal and distal sections separated by a prominent suture. Proximal section 



