314 Miss Ct. Ricardo on 



on the tarsi blackish ; the last four joints of the fore tarsi 

 rather broad. Wings longer than the abdomen, hyaline ; the 

 veins brownish, all vvitli yellow-brown shading; the stigma 

 yellowish ; the first posterior cell sligiitly narrowed. 



Tahanus suhangastus, ? , sp. n. 



The following specimens are in the British Museum 

 collection : — 



Type (female) from Abutshi, River Niger, W. Africa 

 {A. Brakam), 1903. 146 ; three females from N. Nigeria, 

 7. vii. 1905, &c., received from Dr. J. H. Ash worth, 

 Edinburgh University {coll. hy Dr. Dalziel) ; one female 

 from Odut, S. Nigeria {Dr. Dudgeoti). 



This species is related to T. nigrofiirtus, Ric, but dis- 

 tinguished at once by the broader forehead and frontal callus, 

 and by the longer narrower abdomen, and the grey stripe is 

 wider, about 1 mm. in width, and more distinct ; the posterior 

 cell narrowed in T. nigrohirtus is not so in this species ; both 

 are West African species. 



Length 17 mm. 



There are specimens in the Paris Museum, from Sene- 

 gambia. 



A reddish-brown species, with one grey median stripe and 

 wings tinged with brown. 



Head hardly wider than the thorax. Face reddish, covered 

 with grey tomentum, on the sides of the cheeks it is yellower, 

 some white hairs are visible on these last ; beard yellowish 

 white. Palpi yellow, covered with black pubescence ; only 

 slightly enlarged at the base, gradually tapering to a point. 

 Anteniiffi bright red, long and slender ; the first joint oblong, 

 short, the second small with its upper corner prolonged, 

 both with black pubescence ; the third very long and slender, 

 the tooth small near the base, the extreme apex black ; the 

 subcallus the same as face. The forehead brown, rather broad, 

 short, about three times as long as broad and the same width 

 throughout ; the frontal callus brown and shining, large, 

 nearly square, almost reaching the eyes, on the posterior 

 bolder irregular, prolonged in a line which enlarges, becoming 

 spindle-shaped, and nearly reaches the vertex, which is brown ; 

 the sides boidering the callus are covered with yellow tomen- 

 tum. Eyes with no markings. Thorax reddish brown with 

 grey tomentum, through which blackish stripes appear; the 

 sides and breast reddish, covered with grey tomentum and 

 yellow hairs ; the pubescence on sides of thorax black ; the 

 scutellum brownish. Abdomen dull reddish brown, with one 



