in the British Museum. 11 



less than one-lialf the outer defleetiou of M^; basal deflection 

 of Cux shortly before the fork of M. 



Abdomen reddish brown. 



H'ib. Nyasaland. 



Holotype^ S , Mlanje, January 20, 1913 {S. A. Neave). 



Allotopotype, ? , January 24, 1913. 



Presente i by the Entomological Research Committee, 

 1913. 236. 



Type in tfie collection of the British Museum. 



Limnobia nyasaensis is close to L. nrorata (Enderlein), 

 but differs in the broad dark brown femoral tips and the 

 conspicuous dark brown seams at the origin of Rs and along 

 r and the tip of Ri. 



Limnobia humfreyi, sp. n. 



Antennae brown ; head dark grey ; pronotum dull yellow 

 with a broad black median stripe; mesonotum black, the 

 humeral angles of the prsescutum yellow ; pleura obscure 

 yellowish ; halteres black, the basal third of the stem yellow; 

 femora dark brown, the tips black; wings subliyaline, costal 

 and subcostal cells dark brown ; cord, outer end of cell 

 1st M^, and the wing-tip brown ; abdominal tergite orange- 

 yellow with segments two, six, and seven black. 



Male. — Length about 11 mm.; wing 11 mm. 



Rostrum and palpi dark brown. Antennae with the scapal 

 segments brown, the flagellar segments a little dai-ker brown ; 

 flagellar segments oval, the distal segments a little more 

 elongate, the longest verticils about one-half longer than the 

 segments that bear them. Head dark grey, the eyes very 

 large, the vertex between them narrowed to a linear strip. 



Pronotum dull yellow with a broad black median stripe. 

 Mesonotal prajscutum dull yellow with a broad black median 

 stripe that is broadened out behind near the suture to 

 include the whole posterior half of the sclerite ; scutal lobes 

 black, the median area a little paler ; scutellum and post- 

 notum dark brownish black. Pleura obscure yellowish 

 without darker markings. Halteres black, the basal third 

 of the stem abruptly light yellow. Legs with the coxre and 

 trochanters dull yellow ; femora dark brown, the tips black % 

 tibiae black, the extreme bases paler ; tarsi black. Wings 

 subhyaline, the costal and subcostal cells dark brown; stigma 

 dark brown, hairy; brown spots and seams at the origin 

 of Rs, along the cord and outer end of cell 1^^ M^', a less 

 distinct mark at arculus ; the wing-tip is broadly infuscatcd, 

 this including all but the base of cell 2nd Ry, the outer half 



