150 F. W. EDWARDS. 



Legs : Front legs blackish, coxae at the base grey, clothed with long pale hair ; 

 tibiae very little thickened, white on rather more than their basal half. Middle and 

 hind legs blackish, tibiae each with two conspicuous whitish rings, of which the basal 

 one is very broad, occupying nearly half the tibia, and separated from the apical one 

 by quite a narrow dark ring ; metatarsi pale towards the base, more extensively so 

 on the middle legs ; middle femora not so dark as the hind pair. 



Wings dark, with well-defined cream-coloured markings ; no darker clouds ; 

 stigma extensively pale at the base ; an almost horizontal pale streak in the anal celL 

 Squamae light coloured. Halteres yellowish. 



Length, 9 mm. ; wing-length, 7 mm. ; width of head, 2*8 mm. ; width of front at 

 vertex, 0*7 mm. 



Southern Nigeria: Cross River, i.i.l910 (C. W. Jemmett), 2 $ (inch type); 

 Ikotobo, xii.1913 {Dr. J. W. Scott Macfie), 1 ^ (specimen figured). 



Although this species has a certain amount of superficial resemblance to H. crudelis, 

 Aust,, and H. cruenta, Aust., it appears to have no near relative, unless the form of the 

 frontal callus indicates some connection with H. hullatifrons, Aust. The most salient 

 features of H. pallidicornis are the light-coloured antennae, the remarkable frontal 

 callus, the very extensively pale tibiae, and the course of the pale streak in the anal 

 cell. I retain the name which I foimd had been suggested for it by Mr. Austen. 



Haematopota crassicrus, sp. nov. (PI. II, fig. l). 



$. Head (fig. 4) : Face and jowls grey, with whitish hair ;- a small roundish black 

 spot beneath each antenna ; a slight dark cloud at the eye margin. Front dark grey, 

 lighter in the middle and sides of the vertex and round the black spots. Median 

 frontal spot very small or absent ; lateral spots irregidarly triangular, remote from 

 the eye-margins. The front is clothed with short black hair towards the vertex, 



Fig. 4. Haematopota crassicrus. Edw., sp. n. 



and with longer whitish hair below. Frontal callus shining black, moderately 

 wrinkled, touching the eyes below, but separated above ; its upper margin produced 

 upwards laterally and in the middle, the median projection variable in height and 

 breadth, sometimes reaching as far as the upper margin of the frontal spots. Spot 

 below frontal callus velvety black. Antennae dull blackish grey, terminal annuh of 

 third joint black. First joint nearly cyhndrical, but with its outer face somewhat 

 concave ; about three times as long as broad ; second joint roundish. Palpi rather 

 dark grey, clothed with mixed Hght and dark hairs. 



