202 Annals of the South African Museum. 



dark brown. Antennae dark brown throughout. Head black with a 

 grey pruinosity. 



Neck distinct, black. Prothorax black. Mesonotal praescutum 

 dark brownish-black, the extensive humeral areas dull reddish, de- 

 limited behind by a broad shallow suture ; the broad median black 

 stripe extends to the anterior margin of the sclerite. Remainder of 

 the mesouotum, including the pleura, dark brownish -black. Halteres 

 pale, the knobs large. Legs with the fore and middle coxae brownish, 

 the posterior coxae more yellow on the outer face ; fore trochanters 

 brown, the other trochanters dull yellow ; femora and tibiae dark 

 brown, slightly paler basally ; tarsi dark brown. Wings with the 

 broad costal area yellowish, the remainder of the wing grey ; a broad 

 dark brown wing apex passing through the fork of R 2 + s and the fork 

 of -R.4+5 and Jf 1 + .,, paler in the posterior cells ; a small, subhy aline, 

 rounded spot in cell -R 2 adjacent to the tip of R., and costa, not 

 reaching vein J? 3 ; a broad dark brown seam along the cord, on the 

 cephalic portion greatly broadened into a solid subquadrangular costal 

 area ; a broad brown seam along Cu ; veins yellow, brown in the 

 darkened areas. Venation : similar to typical speiseri as figured by 

 Edwards, but the fusion of -B 4 + 5 and M^ + longer, exceeding Rs. 



Abdomen dark brownish-black. Ovipositor black with the valves 

 rusty, the dorsal valves very short and curved as in this group of 

 species. 



Habitat. South Africa. 



Holotype, $ , Kaapmuideu, Eastern Transvaal, October 30th, 1918 

 (K. W. Tucker). 



Allotopotype, ? . 



Paratopotypes, 2 <J $ , June 10th-23rd, 1919 (H. K. Munro). 



This handsome fly will probably be found to be a valid species, but 

 for the present the writer prefers to consider it a race of T. speisen, 

 Edwards. From the type species it differs notably in the large size and 

 darker colour throughout, especially the thoracic pattern, where, black 

 has largely replaced the reddish-brown areas, and in the darker legs and 

 wings. 



TRENTEPOHLIA (TRENTEPOHLIA) GRACILIS CONTINENTALIS, subsp. u. 



Male. Wing 6'5 mm. 



Female. Length 9'4 mm.; abdomen 7'5 mm.; wing 6'7 mm., its 

 greatest width T05 mm. 



This species differs from the description of typical gracilis, End. 

 (Madagascar), as follows : wings longer and narrower, proportionate to 

 the length of the body. Mesonotal praescutum dull brownish-grey 



