﻿102 ERNEST E. AUSTEN — NOTES ON AFRICAN BLOOD-SUCKING MIDGES 



ill-defined greyish pollinose mark runs obliquely outwards to the lateral margin ; 

 scutellum grey on each side ; pleurae drab-grey. Abdomen : dorsum sparsely 

 clothed with yellowish hairs, lateral and posterior borders of segments except 

 last smoke-grey. Wings : surface beyond anterior transverse vein and also that 

 posterior to fourth longitudinal vein clothed with minute hairs (conspicuous under a 

 low-powered compound microscope), which are dark on the grey areas and, at 

 least «in part, pale (glistening yellowish or cream-buff) on the light spots ; third 

 longitudinal vein connected with first longitudinal for a short distance before 

 latter turns to meet costa ; veins or portions of veins included within or in 

 contact with pale spots cream-buff: as regards the pale spots, the chief distinc- 

 tive characters of C. distinctipennis as compared with C. milnei, Austen,* are — 

 the presence of a spot (entirely wanting in the wing of C. milnei) immediately in 

 front of the bifurcation of the fourth longitudinal vein ; the situation of the 

 distal costal spot close to the tip of the wing and just in front of the end of the 

 anterior branch of the fourth longitudinal vein, instead of approximately midway 

 between the end of this branch and the middle costal spot ; the position of the 

 distal of the two spots enclosed between the branches of the fourth longitudinal 

 vein, this spot practically resting on the wing-margin instead of being conspicu- 

 ously further from the latter than are the two following marginal spots ; and 

 lastly, the relative position of the two spots on the proximal side of the posterior 

 branch of the fifth longitudinal vein, which are one above the other, whereas in 

 C. milnei the spot further from the hind margin is much nearer the base of the 

 wing. Halteres isabella-coloured, base or proximal half or two-thirds of knobs 

 clove-brown or dark brown. Legs isabella-coloured, femora each with a narrow 

 pale band just before the tip, tibiae with a similar band just beyond the base. 



Southern Nigeria; Uganda Protectorate: type and other speci- 

 mens (para-types) from Yaba, Lagos, " taken in veranda of bungalow " (with 

 many specimens of the West African race of Culicoides milnei, Austen, and one 

 specimen of C. grahamii, Austen), May, 1909 (Dr. W. M. Graham, IV.A.M.S.); 

 an additional para-type from donor's bungalow at same place, " caught near lamp, 

 9.0 p.m.," 18. v. 1909 (Dr. W. M. Graham, W.A.M.S.); three specimens from 

 Kibanga, Chagwe, Uganda Protectorate, August, 1910 (Captain A. D. Fraser, 

 R.A.M.C). 



All the above-mentioned specimens of Culicoides distinctipennis, as also the 

 types of the other new species described in this paper, are in the British Museum 

 (Natural History). 



Culicoides neavei, sp. n. (PI. I, fig. 2). 



Q. — Length (1 specimen) 1*2 mm. ; length of wing 1*25 mm. 



Allied to and resembling the foregoing species, from lohich, however, it is readily 

 distinguishable owing to certain differences in the wing-markings, — notably the 

 smaller size of the creamy-white spots (other than the costal spot at each end of the 

 third longitudinal vein), and the absence of a spot in front of the bifurcation of the 

 fourth longitudinal vein (cp. figs. 1 and 2). 



* Compare fig. 1 and the coloured figure of C. milnei in the author's ' Illustrations of African 

 Blood-Sucking Flies,' Plate I, fig. 1 (1909). 



