﻿334 ERNEST E. AUSTEN — NEW AFRICAN 



The differences between Tabanus neavei, Austen, and T. insignis, Lw., 

 have been dealt with in the diagnosis at the commencement of the foregoing 

 description. The new species is also closely allied to Tabanus velutinus, Surcouf, 

 which is found in Abyssinia and the East Africa Protectorate, and is most 

 readily distinguishable from T. neavei by the absence of the conspicuous oblique 

 grey stripes on the second abdominal segment, as seen in the latter, by the much 

 paler (burnt umber) colour of the proximal portion of the dorsum of the abdomen, 

 and by the entire ventral surface of the latter, except at the distal extremity, 

 being pale (ochraceous-buff or pale cinnamon), and clothed with glistening, pale 

 yellowish hair. Among other differences between Tabanus neavei and T. velutinus 

 may be mentioned the more slender and elongate shape of the third joint of the 

 antennae in the former (at any rate in the female sex), and the darker coloration 

 of the hind tibiae and of the terminal joint of the palpi. 



Genus Haematopota, Meigen. 

 Owing to pressure upon the author's time, it has proved impossible to prepare 

 a detailed description of the first of the two following species ; it is hoped how- 

 ever that the essential characters have been duly noted, and that the condensed 

 description below, in conjunction with the figure of the $ (Plate XI, fig. 7), will 

 enable the species to be recognised. 



Haematopota furva, sp. n. (Plate XI, fig. 7). 



<$ Q . — Length, c? (5 specimens) 8*4 to 9*4 mm., Q (27 specimens) 8*4 to 

 11*2 mm. ; width of head, $ 3 mm., Q 2*8 to 3*8 mm. ; width of front of Q at 

 vertex 0*75 to 1*25 mm. ; length of wing, c? 7 to 8*4 mm., Q 8*2 to 10*5 mm. 



Medium-sized, blackish species, with dorsum of thorax unicolorous in ^J, and 

 in Q inconspicuously marked with the commencements of three grey longi- 

 tudinal stripes on anterior border and two grey dots near centre ; both sexes with 

 tergites of first six abdominal segments each bearing a pair of rounded or elongate, 

 mouse-grey spots, forming two converging longitudinal series ; hind margins of 

 abdominal segments also mouse-grey ; eyes in $ densely clothed with short hair, 

 inconspicuously hairy in Q ; larger facets in eyes of S only to a moderate extent 

 exceeding the smaller facets in size ; frontal callus in Q black, of moderate 

 depth, its upper margin straight or nearly so, or slightly curved ; palpi blackish 

 slate-coloured in cf, mouse-grey in 9 , in which sex terminal joint is moderately 

 or only slightly thickened towards base ; first joint of antennae shining black, 

 second and third joints dull clove-brown, all joints dark greyish pollinose, first 

 joint conspicuously swollen in tf , only slightly so in Q, third joint elongate, 

 expanded portion in Q moderately broad at base when viewed from the side ; 

 wings dark sepia-coloured, with clearly defined light markings (forming the usual 

 three rosettes), majority of which are generally much broken up into dots, so as 

 to appear more or less moniliform, and in Q sex especially look as if traced by 

 point of a needle ; stigma dark brown, well-defined ; pale loop in marginal cell 

 immediately beyond stigma usually conspicuous, complete or incomplete, some- 

 times contracted into a pale spot in which the darker centre is scarcely 

 distinguishable ; base of third longitudinal vein, anterior transverse vein, 

 posterior half of distal boundary of second basal cell, distal boundary of discal 



