208 Aimals of the South African Museum. 



flagellar segments slender, elongated, with long black bristles. Head 

 broad, dark brown. 



Thorax discoloured in the type, probably dark brown. Halteres 

 short, black. Legs black. Wings dark brownish-black ; veins dark 

 brown. Venation (Plate III, fig. 7) : Sc extending to just before the 

 end of the sector ; r rather indistinct ; cell R. 2 very deep, almost 

 sessile ; deflection of R + _- long, nearly twice the length of r-m ; cell 

 M, very short, from one-third to two-fifths the length of its petiole; 

 basal deflection of Cn } beyond the fork of M. 



Abdomen black, the hypopygium a little brighter. 



Habitat. South Africa. 



Holot ypo, $ , Ceres Division, Matroosberg, Cape Colony, altitude 

 3,500 ft., November, 1917 (Lightfoot). 



Paratype, rf , Paarl, Cape Colony, October, 1919 (Rev. Gr. Hawke). 



A paratype specimen from French Hoek, Cape Colony, altitude 

 2500-3600 ft., December 4th, 1916 (K. H. Barnard) is larger than 

 the type, offering the following measurements : length about 5'3inm. ; 

 wing 5'8 mm. As the coloration is better preserved than in the 

 somewhat defective type the following additional notes are given. 



First scapal segment of the antennae long, the second nearly glob- 

 ular. Pronotum very large and generalised in structure, the scutellum 

 constricted medially and with a deep impressed median groove. 

 Mesonotal praescutum dark brown with a sparse brownish-yellow 

 pollen and with a broad dark brown median stripe that is broadest in 

 front, becoming obliterated before the suture ; pseudo-sutural foveae 

 very large and conspicuous, shiny black ; tuberculate pits lacking or 

 else very reduced. Pleura grey pruinose. The wing coloration and 

 venation is almost exactly as in the type ; Sc., a short distance from the 

 tip of 6'cp Abdomen brownish-grey pruinose. Male hypopygium 

 with the pleurites short and stout, the two pleural appendages 

 relatively small, the outer appendage a little longer but narrower than 

 the fleshy inner appendage. Penis-guard slender, almost straight ; 

 gouapophyses with the tips slender, acute. 



SUB-GEN. LIMNOPHILOMYIA, sub-gen, n. 



Labium triangular, pointed. Antennae elongate, 16-segmented, the 

 flagellar segments with short subbasal verticils. Tibial spurs micro- 

 scopic or lacking. Wings with the radial cross-vein lacking ; Sc% 

 elongate ; basal deflection of ^ 4 + 5 in a direct line with the sector. 

 Male hypopygium simple. 



Type of the sub-genus: Limnophifa (Lintuophi/onii/ut ) lacteitarsts, 

 sp. n. (Southern Ethiopian region). 



