48 



Ridges - Dorsal view: Proximal ridge entire; distinct from lobe. Apex narrow. Anterior 

 section distally obscured by the distal ridge. Anterior to ant ero -median section depressed 

 below the distal ridge. Antero-median to postero-median section strongly enlarged above 

 the distal ridge. Posterior section moderately enlarged above the distal ridge: oriented 

 posteriad; slender: very long; incorporated into lobe: distinct from lobe and strongly 

 extended past the posterior margin of lobe. Distal ridge weakly distinct from lobe. Apex 

 not fused to the proximal ridge apex; oriented ventrad; broadly spatulate: slender. Anterior 

 section extremely short; curved proximad. Median to posterior section extends adjacent 

 to. but lies below, the proximal ridge: very weakly demarcated from body by an 

 impression. Posterior section acerose: very weakly extended past the posterior margin of 

 lobe. - Ventral view: Proximal ridge slender: curved distad: distinct from lobe. Apex 

 aciculate. Anterior to antero-median section digitate: slender: conceals the proximal 

 margin of the distal ridge. Median to posterior section obscured by the distal ridge. Distal 

 ridge slender. Anterior to median section partially concealed by the proximal ridge: 

 straight. Median and posterior sections arise from the posterior and proximal margins of 

 the distal lobe; distinct from lobe: very broad but short. Median section convex. Postero- 

 median section waisted. Subalare tendon attachment point short and broad: apically not 

 curved ventrad; posterior margin rounded; extends posteriad from the median; spatulate: 

 visible dorsally. 



Body - Dorsal view: about as long as broad. Proximal lobe short and moderately small: 

 deltoid: arises medially from ridge, but depressed below the ridge; strongly sclerotized; 

 convex; oriented proximad. Base moderately broad. Apex broadly rounded. Anterior 

 margin very weakly concave. Posterior margin very weakly enlarged: very weakly 

 concave. Distal lobe large and broad; deltoid; much larger than proximal lobe; moderately 

 sclerotized; convex. Apex acute. Anterior margin straight. Posterior margin straight: 

 weakly reduced. - Ventral view: Proximal lobe small; convex. Posterior wing process 

 junction formed as a large ovoid convexity which conceals the base of the proximal lobe: 

 extends anteriad from the posterior corner of the lobe base. Base moderately narrow . Apex 

 round. Distal lobe deltoid: moderately large and broad; discontinuous with ridge: weakly 

 concave. 



Median Plate (Fig.75) 



FM1 oriented strongly postero-distad. Anterior section moderately narrow. Median to 

 posterior section very broad. Proximal margin convex. Articulation with 2Ax extends from 

 the antero-distal margin of the distal lobe to the posterior section of the ventral ridge. 

 Distal margin very broadly and strongly fused to 3Ax. FM2 very short: oriented posteriad: 

 acerose; separated from FM1 by a long, broad section of membrane. 



Third Axillary (Fig.76) 



Head very broad: dorso-ventrally flattened: dorsal surface moderately and extensively 

 concave. Proximal margin convex. Anterior margin dorsally weakly convex; anteriorly 

 weakly concave; not enlarged ventrally; from the proximal angle it slopes abruptly antero- 

 distad. Antero-proximal margin not extended anteriad. Antero-distal margin not extended 



