in the British Museum. 13 



bristles ; vertex between the eyes narrowed at the hinder 

 part of the eyes, at the narrowest part rather light brown. 



Pronoturu yellowish, narrowly dark brown medially. 

 Mesonotal prrescutum brownish- black, sparsely dusted with 

 grey, especially behind ; humeral region very narrowly dull 

 yellow; remainder of the mesonotum black, the median 

 area of the scutum greyish. Pleura obscure yellow, the 

 mesepisternum, mesepimeron, and lateral sclerites of the 

 postnotum dark brown, sparsely dusted with greyish, directly 

 continuous with the median sclerite of the postnotum ; 

 sternites similarly dark brownish black. Halteres dark 

 brown, the base of the stem narrowly yellowish. Legs with 

 the coxae obscure yellow, the outer faces infumed; tro- 

 chanters brown ; legs dark brownish black. Wings nearly 

 hyaline, the costal and subcostal cells dark brown ; stigma 

 dark brown, hairy ; wing-tip dark brown in cells 2nd R x (except 

 the base), the outer half of i? 3 and i? 5 , all but the base of 

 2nd M 2 , M 3 , and Cu u and the apices of the other caudal cells ; 

 cord and outer end of cell 1st M 2 rather broadly seamed 

 with dark brown ; a spot at the origin of Rs ; veins brownish 

 black. Venation as in L. humfreyi. 



Abdominal tergite one light yellow; two and three black 

 except a narrow basal ring; four orange; five to seven black; 

 eight, nine, and the hypopygium orange ; sternites generally 

 similar to the tergites. 



Hub. Ashanti. 



Holotype, S , Obuasi, July 5, 1907 (Dr. W. M. Graham) ; 

 caught on window. B.M. no. 1908. 245. 



Type in the collection of the British Museum (Natural 

 History). 



Limnobia grahami is very close to L. humfreyi, but may be 

 told by the increase of black markings on the mesonotal 

 pnescutum, the conspicuous dark area on the mesopleura, 

 the black abdomen with the fourth segment clear orange, 

 and other characters. 



Limnobia edwardsi, sp. n. 

 Mesonotal praescuturn yellow with a broad black median 

 stripe ; scutal lobes, the distal halves of the scutellum, and the 

 postnotum deep velvety black, basal halves of the scutellum 

 and the postnotum yellow; pleura yellow with a narrow 

 transverse band across the mesopleura and mesosternum, 

 completely girdling the thorax at this point ; a dark mark in 

 front of the halteres, the area between these two dark bands 

 conspicuously yellovv-polliiiose ; legs black; wings with the 



