468 Dr. C. P. Alexander on 
nigrolatera ; this may be a sexual character, however, as 
only imales of typical nigrolatera and females of the new 
variety have been made known. In the present form the 
pubescence of the legs is very short, appressed, and not at all 
conspicuous. The wings are much paler, greyish sub- 
hyaline ; vein Sc considerably shorter, ending far before the 
fork of Ry,3; Sc, is closer to the tip of Sce;, Sc, alone being 
only about two-thirds &,,3; in typical nigrolatera Sc, 1s 
longer than 2,3; anal veins a little more divergent at thie 
wing-margin. ‘lhe valves of the ovipositor are short and 
fleshy as in the group. 
Hab. Eastern Transvaal. 
Holotype, 2, ‘‘ Lot 30, De Kaap Block B,” near Kaap- 
muiden, October 11, 1919 (HZ. K. Munro). 
Paratopotype, 2, a badly injured specimen, October 10, 
1919. 
Molophilus camerounensis, sp. 0. 
Rostrum and palpi black ; antennz of the male elongate, 
the basal segments yellowish ; general coloration dark brown, 
the mesonotal prescutum brighter brown ; wings greyish, 
the veins clothed with long dark-coloured hairs ; male hypo- 
pygium with three conspicuous chitinized appendages on 
either side. 
Male.—Length 4°8 mm.; wing 4°4 mm. 
Rostrum and palpi black. Antenne of the male elongated, 
almost as in the Nearctic M/. pubipennis, O.-8., the basal 
segments light yellow, the distal segments a little more 
brownish; flagellar segments elongate-cylindrical, clothed 
with long, pale, outspreading hairs. Head dark brown. 
Mesonotal preescutum rather light brown, the remainder of 
the mesonotum and the pleura dark brown. MHalteres dark 
brown. Legs with the coxe and trochanters brown; re- 
mainder of the legs dark brown. Wings with a strong grey 
tinge, the costal and subcostal cells more brownish ; veins 
aud pubescence dark brown, giving a dark colour to the 
wings. Venation: £3,4,; long, about one-half longer than 
the basal deflection of Cu,; fork of M/ far proximad of the 
fork of Rs; inner ends of cells R; and #; in alignment ; 
petiole of cell M/; more than three times the basal deflection 
of Cu, or about two-fifths of vein Cu, beyond it; basal 
deflection of Cu, perpendicular, nearly twice as long as the 
basal deflection of 1/3. : 
Abdominal segments brown, indistinctly bicolorous. Male 
