in the Brilish Museum. 35 



r on U^ a little less tliun its own length beyond the fork of 

 J'2+z ; basal deflection of Cu^ inserted a short distance before 

 mid-length of the small, nearly pentjigonal, cell 1*^ M^. 



Abdomen metallic greenish blue. Valves of the ovipositor 

 black, a little paler at the extreme tips. 



Hab. Nyasaland. 



Holotype, ? , Mt. Mlanje, December 28, 1912 {S. A. Neave). 



Presented by the Imperial Bureau of Entomology, 1915. 58. 



Type in the collection of the British Museum (Natural 

 History). 



G nop homy iaperelegans is very closely allied to G.peramoena, 

 despite the striking differences in the coloration of the b )dy 

 and legs. In both species the hind legs are conspicuously 

 longer than the others and the femora are slightly incrassated. 



Genus Gonomyia, Meigen. 



Gonomyia (^Gonomyia) 7iyas(B, sp. n. 



Antennae black, the scapal segments paler; mesonotura 

 pale brown, the scutellum broadly margined with white; 

 pleura striped longitudinally brown and white ; halteres 

 yellow, the base of the knobs brown; legs pale brown; 

 wings faintly greyish, stigma indistinct ; cell Ji.^ very small, 

 basal deflection of Cui before the fork of M ; abdominal 

 tergites uniformly dark brown; male hypopygium with both 

 pleural appendages simple. 



Male. — Length 34 mm.; wing 3*6 mm. 

 Rostrum dark brown; palpi black. AntenniB with the 

 enlarged scapal segments pale yellowish brown ; flagelluui 

 black with exceedingly elongate verticils. Head badly 

 wrinkled in the unique type, pale brownish yellow, the 

 vertex indistinctly darker medially. 



jNlesonotal paescutum pale brown, the extreme lateral 

 margins yellowish white; scutum similar; scutellum pale 

 brown, the caudal margins broadly white ; postnotum dark 

 brown, the sides more yellowish. Pleura dark brown, longi- 

 tudinally striped with whitish, the dorsal stripe formcil by 

 the lateral margins of the mesonotal prsescutum as described 

 above, the ventral stripe lying across the base of the mcso- 

 sternum. Halteres pale yellow, the knobs brown with only 

 the tips yellow. Legs with the coxae and trochanters palu 

 brown ; remainder of the legs pale brown, the distal tarsal 

 segntents dark brown ; a few stiff setw at the tips of the 

 femora. Wings with a faint grey tinge ; stigma indistinct ; 

 veins pale brown. Venation: 6'c short, 6'c, ending a shoit 

 distance before the origin of A'*; vein jfi^a^s in alignment with 

 Rs and much longer than it ; cell lin very tiny, vein Ix.^ being 



3* 



