Cnine-lHe* of SoutJi Africa. 199 



Sex?. Wing, 6'4 mm. 



Rostrum and palpi dark brownish-black. Antennae black, the 

 flagellar segments long-oval. Head grey, more reddish along the inner 

 margin of the eye. 



Mesonotum brownish-grey, the praescutum with the stripes indis- 

 tinct ; scutellum yellow, dark brown anteriorly. Pleura pale greyish- 

 white, indistinctly marked with darker blotches. Halteres pale. Legs 

 with the coxae dull yellow, the outer face more brownish ; trochanters 

 dull yellow ; remainder of the legs dark brown, darkest on the tarsi. 

 Wings with a faint yellow tinge, the stigma indistinct ; veins pale 

 yellowish-brown, the costal veins more yellowish. Venation : Sc } 

 elongate, ending just beyond mid-length of the long, arcuate sector ; 

 Sc. 2 retreated, located just before the origin of Ks ; -B 2 + 3 long, gently 

 arcuated ; Re, oblique ; cell R* large ; cell \st If, open by the atrophy 

 of the outer deflection of M 3 ; cell If 3 deep ; basal deflection of Cu-^ 

 far before the fork of M, the fusion with M greater than the deflection 

 alone. 



Abdomen broken beyond the first segment. 



Habitat. South Africa. 



Holotype, sex?, Komati Poort, Eastern Transvaal, November, 1918 

 (R. W. Tucker). 



Type in the South African Museum. 



In its venation G. tuckeri agrees almost exactly with G. mathesoni, 

 Alex. (North-eastern North America) . In both species $e 3 is retreated 

 far back from the tip of /S'c 1 so that it lies just proximad of the origin 

 of the sector. Such species would run to the tribe Pediciini in the 

 keys to the family. 



This interesting fly is dedicated to its collector, Mr. R. W. Tucker. 



GrONOMYIA (GrONOMYELLA) FLAVEOLA, Sp. n. 



Front yellow, vertex dark grey ; thorax yellow, the praescutum with 

 three dark brown stripes ; legs largely yellow, the tips of the femora 

 and tibiae darkened ; wings tinged with yellow ; Sc long ; basal deflec- 

 tion of Cii^ just before the fork of M. 



Female. Length, 5'8-6'3 mm. ; wing, 6-6'5 mm. 



Rostrum and palpi dark brown. Antennae with the basal seg- 

 ments yellowish, the remainder of the organ dark brown ; flagellar 

 segments oval. Front dull yellow ; vertex dark grey pruinose. 



Thorax yellow, the praescutum with three dark brown stripes that are 

 confluent behind ; pseudosutural f oveae large, conspicuous, triangular, 

 shiny dark brown ; scutum with the lobes largely dark ; scutellum dull 

 brownish -yellow ; postuotum dark brown, the sides more yellowish. 



