416 Annals of the South African Museum. 



as C. Crocotheiiiis saxicolor" Together with the habits the peculiar 

 "granitic" pattern is also common to these remarkable two species. 



BEACH YTHEMIS (Brauer, 1868). 



Two African and two Asiatic species, one of each group of very wide 

 range and common. 



BRACHYTHEMIS LEUCOSTICTA (Burmeister, 1839). 



S. Afr. Mus. : 1 $ , Waterval, Transvaal (13 . v . 1900) ; 1 <J , Kaf ue 

 Eiver, Rhodesia (v . 1912) ; 1 <J .Matopo Dam, Bulawayo (16 . ii .1911) ; 

 Potgietersrust, Transvaal (x.1914, Dr. Melle) ; Otjituo, S.W. 

 Protectorate (i . 1919, Lightfoot) ; Otiembora (xi . 1887, Eriksson) 

 and Mafa (ii . 1921, Barnard), S.W. Protectorate. Coll. Selys : 

 2 (J , 1 9 , Delagoa Bay. 



^ (adult). Labium dark brown ; labrum, face and frons brownish 

 Mack. Thorax and abdomen wholly black, very slightly whitish 

 pruinose. Legs brownish black. Wings hyaline with a broad bhickish- 

 brown transverse band, occupying in most specimens the whole space 

 between nodus and proximal end of pterostigma. Pterostigma whitish 

 yellow in proximal two-thirds, dark grey in distal third. Immature 

 males similar to female, gradually passing to the mature black colour ; 

 black band of wings also gradually appearing, very rarely absent in 

 fully mature males. 



9 . Lips whitish yellow ; ante and postclypeus very light olivaceous, 

 frons and vertex whitish yellow, narrow black line at base of frons. 

 Thorax and abdomen bright ochreous, with an olivaceous shade, 

 marked with black ; lines at median and humeral suture, bifurcate 

 ante-humeral baud ; lines between humeral suture and metastigma, 

 dorsally from metastigma, at second lateral suture, and on metepimeron. 

 Abdomen with narrow mid-dorsal line, broad lateral baud nearer to 

 lateral than to median carina, partially interrupted at the joints, 

 narrow dots on lateral carina. Legs light yellowish, with narrow 

 black lines. Wings hyaline with a small light yellow basal spot of 

 second pair, to Cuq and end of membrauule. Post-nodal band absent 

 altogether, even in fully mature specimens, or present in various 

 degrees of extent and depth of colour, but never fully as broad and 

 as deeply coloured as in regular males. Pterostigma as in male. 



<J , AM. 20, hdw. 24, pt. 2-5 mm. to 21, 25, 3. 9 , 18, 22, 2-5 to 20, 

 26,3. 



The specimens here recorded indicate evidently the extreme southern 



