123 



anteriad. Anterior margin concave. Posterior margin weakly enlarged; concave. Distal lobe 

 extremely small; deltoid; shorter than proximal lobe; moderately sclerotized; planate. 

 Anterior margin straight; oriented distad; strikingly reduced. Apex broadly rounded. 

 Posterior margin convex; strongly reduced. - Ventral view: Proximal lobe short; convex. 

 Posterior wing process junction formed as a slender, ridge-like convexity; occupies the 

 postero-proximal section of the lobe and is greatly lengthened anteriorly, extending to, and 

 running along the anterior margin of the lobe. Distal lobe extremely small; weakly 

 discontinuous with ridge; concave. 



Median Plate (Fig.201) 



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

 and very long. Proximal margin 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.202) 



Head weakly convex; normal length; strikingly bi-lobed; lobes exceedingly narrow and 

 very long. 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 extremely deep and extends posteriorly to the head- 

 neck junction; deltoid. Antero-proximal margin very strongly extended proximad as a lobe. 

 Proximal lobe convex; strikingly long; narrow; acerose. Antero-distal margin very strongly 

 extended anteriad as a lobe. Distal lobe convex; strikingly long; narrow; acerose. AXCu 

 occupies the proximal one-third of the proximal lobe; convex. FCu strikingly reduced 

 distally; 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 

 extremely narrow. 



Neck strongly elevated, extremely long and narrow; curved postero-distad. FCu section 

 of neck absent. AXCu forms entire neck; extremely small. Posterior section 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; 

 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. 



