﻿On the BoinhyUid Fauna of South Africa {Dipfera). 87 



white, without distinct fringe. Genitalia of the male shiny bluish 

 black, retracted ; those of the female with two broad lamellae. Legs 

 entirely black, the femora with rare, pale and dark hairs below ; hind 

 tibiae witli 4-6 long ciliae outwardly in the basal half ; middle tibiae 

 with two ciliae ; claws minute, black with yellow base ; pulvilli dirty 

 yellowish. Wings hyaline, with black veins; venation as in Corsomyza, 

 but the anal cell in the male is closed at the border, in the female it is 

 narrowly open. 



Megapalpus fulviceps, sp. nov. 



A very strange and robust insect, which was named by Bigot 

 " Amictns fulviceps,'' and which may be provisionally placed in the 

 present genus. 



Type $ , a specimen from the Cape, Van Rhynsdorp (R. M. Light- 

 foot), Namaqualand, Port Nolloth. 



$ . Length of the body 9 mm. ; breadth of the body 5 mm. ; 

 length of the wing, 8-5 mm. ; wing spread 22 mm. Head very 

 developed, and distinctly broader than the thorax. Occiput concave 

 above, shiny black, but with a broad yellow spot extending from the 

 neck to the upper corner of the eyes ; it is clothed with short white 

 hairs, which become longer and denser on the sides and below, 

 merging into the dense white beard of the chin. Frons twice as broad 

 as the eye, shiny black, but with a yellow curved baud on the fore part 

 above the antennae, in contact with the yellow face ; from the ocellar 

 tubei'cle two abbreviate black stripes start hindwards, reaching the 

 yellow occipital patch. The frons has only scarce and short fuscous 

 hairs, which are more whitish and longer on the vertical edge ; above 

 the root of the antennae there is in the middle of frons a circular 

 depression. Eyes rather narrow in profile. Antennae inserted at the 

 level of the upper corner of the eyes, very long (measuring 45 mm. in 

 length) and horizontally porrect ; they are entirely black. The first 

 joint is cylindrical, only a little shorter than the third, with very 

 scai-ce and short pale hairs ; second joint very short and lenticular ; 

 third joint compressed, of an elongate oval shape, broader in the 

 middle than at the end, obtuse at end. Face very broad and entirely 

 yellow, shining, with only a small black, transverse spot near the root 

 of the antennae ; the mantle border is prominent in the shape of a 

 conical protuberance separated from the broad cheeks and jaws by a 

 deep furrow ; the entire face is bare, with only a very short and thin, 

 pale pubescence. Palpi long and thin, black, shortly pubescent ; 

 proboscis 5 mm. long, horizontal, stout, entirely black, bearing near 



