The Odoiiata or Dragnn flies of South Africa. 325 



specimens beloii<; to what this author and originally E. Martin 

 described as Ischnuva elongala. This supposition is made, although 

 Prof. Sjostedt sent the female under another name. This female is 

 here associated with the males chiefly according to its elongate stature 

 and also as coming from the same geographical region (outside our 

 faunal district !). The species is evidently not an Isclmura, but clearly 

 an Eiiallagma of the African group. 



(^ . Occiput light greyish blue. Labium whitish. Laln-um lilue, 

 very narrowly obscure at base ; auteclypeus l)lue ; postclypeus black ; 

 frons and vertex Ijlue to base of antennae, lilack posteriorly ; rather 

 large cuneiform jjostocular spots and a narrow line on occipital margin 

 tilue. First joint of antennae blue, the rest black. Prothorax black, 

 marked blue ; the sides broadly so, lateral cuneiform, and a small 

 median post#i"ior spot. Posterior lobe moderately high, erect to an 

 angle of about 60°, shallowly trilobate, the median lobe much the 

 liroader, its free margin very slightly and regularly convex. Thoracic 

 dorsum black ; l)road l)lue ante-humeral stripes, about as broad as the 

 corresponding half of median black stripe, slightly narrowed dorsally. 

 lu some of the specimens only a very narrow whitish line on median 

 suture, humeral black al)out as broad as blue ante-humeral stripe, 

 divided about equally by dorsal end of humeral suture just touching 

 the suture at ventral end. Sides lilue ; black dot in dorsal end of 

 second lateral suture. Ventral side light bluish grey, Legs bluish 

 grey, femora and tibiae broadly lilack anteriorly. 



Abdomen comparatively long and slender. Segment 1 lilue with 

 dorsal black spot ; 2 blue, a posterior transverse black band, slightly 

 convex anteriorly to one-half the segment's length, straight behind 

 and distant there about by one-half its own breadth from the segment's 

 end, sides broadly blue over the entire length, a very narrow black 

 ring on joint; sides of 3 blue in anterior third, yellowish in the 

 posterior two-thirds of length, dorsum black, the broad liand narrowed 

 to a point in first fifth, broadened to lateral margin in last fifth ; 

 4-6 light yellowish oji sides, black dorsally, and to lateral margin in 

 last fifth, interrupted by a very narrow liluish ring at anterior joint 

 7 black, merest trace of a yellow line at lateral margin and very narrow 

 anterior and posterior blue rings ; 8-9 blue ; 10 black on dorsum and 

 in a narrow anterior ring, blue laterally, yellowish veutrally. 



Appendages (Text-fig. 37) blackish, lighter on venti-al side. 



Pterostigma very dark reddish brown to blackish. A* proximal to 

 Cttq by the length of that vein or slightly more. jl£, at sixth, excep- 

 tionally fifth Pnq in front wing, fifth Piiq iii hind wing ; M^a 3 or 4 

 veins more distally. Abd. 26, hdw. 19'5 mm. 

 21 



