﻿(family chironomidae, subfamily ceratopogoninae), &c. 101 



following particulars with reference to recently collected examples of the species 

 under consideration are supplementary to previously published records : — - 



Uganda Protectorate : Mpumu, Chagwe, May, 1911 (Dr. H. L. Duke); 

 Okellobong's, Lango, Nile Province, 21. vi. 1911, 5.45 a.m.; Nabiesu, 26. vi. 

 1911 ; Kaduku, 29. vi. 1911, 6 a.m. (Dr. R. E. McConnell — in possession of the 

 Entomological Research Committee). 



Anglo-Egyptian Sudan : Malek, near Bor, R. Nile, 10. x. 1909 (Rev. — 

 Shore). — The three examples collected by Mr. Shore are somewhat smaller than 

 the typical form, with which, however, they agree fairly closely in other respects. 

 They were submited for examination by Mr. H. H. King, of the Wellcome 

 Research Laboratories, Khartoum, through whose courtesy one of the specimens 

 has been added to the National Collection. 



Southern Nigeria : Yaba, Lagos, 11 and 12, iv., and 20. v. 1909, "caught 

 in veranda of bungalow, 9.0 and 10.0 p.m." (Dr. W. M. Graham, W.A.M.S.). 



Among the large number of specimens of the local race taken by Dr. Graham 

 in his veranda at Yaba, is the first male of Culicoides milnei yet received. In this 

 specimen the long hairs clothing the antennae are shining ochre-yellow, while the 

 light spots on the wings, with the exception of those on the costal margin, are 

 apparently somewhat fainter than in the female. 



Culicoides distinctipennis, sp. n. (PI. I, fig. 1). 



Q. — Length (6 specimens) 0"8 to 1 mm. ; length of wing 1 to 1*2 mm. 



Allied to C. milnei, Austen, but distinguishable at once owing to its much smaller 

 size, and to conspicuous differences in the wing -markings. — Dorsum of thorax (in 

 dried specimens) dark brown, mummy-brown* or russet-brown, longitudinally striped 

 and marked with drab-grey ; dorsum of abdomen (in dried specimens) clove-brown ; 

 wings mouse-grey (strongly iridescent when the light falls on them at a certain angle), 

 conspicuously marked with a series of creamy-white spots, the shape, position, and 

 arrangement of which is shown in fig. 1 ; knees conspicuously infuscated. 



Head : vertex sparsely clothed with long, curved, blackish hairs ; palpi sepia- 

 coloured, clothed with brownish hairs, third joint darker than the two following 

 joints ; antennae clothed with brownish or yellowish hairs, first two or first three 

 joints sepia-coloured, remaining joints isabella-coloured. Thorax : dorsum sparsely 

 clothed with erect, yellowish or brownish hairs, and (in well-preserved specimens) 

 exhibiting anteriorly a median, elongate, greyish pollinose, lyrate mark, each 

 anterior extremity of which runs outwards to the corresponding humeral callus ; 

 from about the middle of the dorsum, where the two halves of the lyrate mark 

 meet together, the lyrate mark is connected with the hind margin by a broad, 

 median, greyish pollinose stripe, enclosing a pair of elongate dark brown spots, 

 one of which is situate on each side of the middle line ; on hind margin of main 

 portion of dorsum the greyish pollinose area sends out a prolongation on each 

 side, which includes each posterior angle and then curves forwards to form a 

 grey, elongate blotch above base of each wing ; anteriorly on each side of dor- 

 sum, and posteriorly to the swelling behind the corresponding humeral callus, an 



* For names and illustrations of colours see Ridgway, " A Nomenclature of Colors for 

 Naturalists " (Boston : Little, Brown, and Company, 



