368 Annals of the South African Museum. 



Anax speratus (Hageu, 1867). 



S. Afr. Mus.: 1 S, Rietfouteiu (19 . x . 1904); 3 cJ.M'Pongosi, 

 Zululand (iii, x, xii . 1911, W. E. Joues) ; 1 (?, TJmhlali, Natal 

 (i . 1913, K. H. Barnard) ; Acornhoek, Transvaal (xii . 1918, Tucker). 

 Coll. E. B. Williamson: 1 ? , Hilton Eoad, Natal (19 . xii . 1909, 

 G. F. Leigh). Mus. Tervuereu : 1 9, Baudouinville (30 . iii . 1911, 

 B. Valdouis). Mus. Stockholm : 1 $ , Congo, 1 ? , Mukimbuugu, 

 Congo (Laman). Mus. Hamburg: 2 (J, Nguelo, Usambara. Coll. 

 Ris: 1 c?. Abyssinia; 1 (J, Harrar, Abyssinia (1911, Kristensen). 

 Coll. Petersen-Silkeborg : 1 ?, Asmara, Eritrea (1907, Kristensen). 



c?. Lips, face and frons ferruginous, with a very slight greenish 

 shade in some specimens. Thorax brick red, also with a trace of 

 greenish at the sides ; latero-veutral sutures with black dots. Legs 

 very long and robust ; femora ferruginous, tibiae and tarsi black. 

 Abdomen, the appendages included, brick red, first to second segment 

 faintly greenish laterally. Superior ajjpendages spatulate ; median 

 border produced as a broad triangle with point in middle of length ; 

 end of appendage an almost circular plate with anterior median 

 border sharply upturned. Inferior appendage half as long as 

 superiors, slightly narrowed distally and shallowly excised at end. 

 Wings hyaline, base light yellow from the costa to vein A and to 

 about half way to arculus ; venation light brick red in basal and costal 

 part, gradually turning to darker brown towards apical and anal 

 margin ; pterostigma brick red ; niembranule white in proximal, dark 

 grey in distal half. 



9 . Similar to male in colour ; but the greenish shade much more 

 developed on the thorax, sides of first and second abdominal segment 

 decidedly greenish. Appendages simple, broadly lanceolate. Wings 

 tinged with yellow in the costal part to almost the level of If,. 



cJ , Abd. 50 + 7, lidw. 53, jit. 5 mm. (J , 58 + 6, 59, 5-5. 



This Anax must be, in the full beauty of living colour, a most 

 conspicuous and elegant insect. Its colour system has analogous 

 though not identical representatives in the Oriental A. immacidifrons 

 and the American A. longipes. 



Anax imperator mauricianus (Ranibur, 1842). 



S. Afr. Mus. : 1 cJ , Waterberg, Zoutpansberg Distr. (20 . x . 1901); 

 1 c? , Salisbury, Mashonaland (17. xii . 1911); 1 (J, 1 ?, Loreneo 

 Marques (24, 27 . ix . 1911). Coll. K. J. Morton :1c?, Dargle, Natal 

 (i, ii . 1909, Miss Fountaine). Coll. E. B. Williamson : 2 (J , Salisbury 



