The Odonata or 7) rm/o /?>.<? of South Afrini. 325 



specim-ns belong to what this author and originally E. Martin 

 described as Isckuitm floiuja'a. 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 Ischnura, but clearly 

 an Enattagina of the African group. 



$ . Occiput light greyish blue. Labium whitish. Labrum blue, 

 very narrowly obscure at base ; anteclypeus blue ; postclypeus black ; 

 frons and vertex blue to base of antennae, black posteriorly ; rather 

 large cuneiform postocular spots and a narrow line on occipital margin 

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

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

 median posterior spot. Posterior lobe moderately high, erect to an 

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

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

 dorsum black ; broad blue ante-humeral stripes, about as broad as the 

 corresponding half of median black stripe, slightly narrowed dorsally. 

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

 suture, humeral black about as broad as blue ante-humeral stripe, 

 divided about equally by dorsal end of humeral suture just touching 

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

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

 grey, femora and tibiae broadly black anteriorly. 



Abdomen comparatively long and slender. Segment 1 blue with 

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

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

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



t/ O 



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 blade, the broad band narrowed 

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

 4-6 light yellowish on sides, black dorsally, and to Literal margin in 

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

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

 anterior and posterior blue rings; 8-0 blue; 10 black on dorsum and 

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



Appendages (Text-fig. 37) blackish, lighter 011 ventral side. 



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

 Citq by the length of that vein or slightly more. M. 2 at sixth, excep- 

 tionally fifth Pmj in front wing, fifth Pnq in hind wing ; M^i 3 or 4 

 veins more distally. AM. '2(J, lulu. 19'5 mm. 

 21 



