﻿(family chieonomidae, subfamily ceratopogoninae), &c. 103 



Head darkish grey, sparsely clothed on vertical region with curving, yellowish 

 hairs ; palpi dark sepia-coloured, clothed with brownish hair, distal extremity of 

 terminal joint clothed with yellowish hairs ; antennae clothed with yellowish 

 hair, first and second joints sepia-coloured, remaining joints isabella-coloured. 

 Thorax : dorsum drab-grey, with dark mummy-brown markings, consisting of a 

 narrow median stripe (somewhat broader in front and behind but obliterated or 

 nearly so in centre of dorsum), and some spots on each side of median stripe, 

 between it and lateral margin ; a little way in front of presutural furrow is a 

 . small elliptical ovate spot on each side of median stripe ; in front and a little to 

 the outside of each of these spots is a larger cuneiform mark ; lateral margin of 

 dorsum immediately above dorsopleural suture is also dark brown (at least when 

 viewed in a certain direction), and between this and a (more or less ill-defined) 

 backwardly directed prolongation of each cuneiform mark there is a small brown 

 spot ; dorsum sparsely clothed wdth yellowish hair ; scutellum cream-bufF, with a 

 dark brown median stripe ; metanotum clove-brown, with a pair of rounded, 

 drab-grey spots on upper margin. Abdomen : dorsum mummy-brown, distal 

 extremity darker. Wings mouse-grey (with a beautiful purplish iridescence 

 when light falls on them at a certain angle), marked with creamy-white spots, as 

 shown in fig. 2 ; spot in front of distal extremity of anterior branch of fourth 

 longitudinal vein very small and rounded ; spots enclosed within fork of fourth 

 longitudinal vein, as also those in front of anterior branch of same vein much 

 further apart than corresponding spots on wing of foregoing species ; other 

 differences as compared with Culicoides distinctipennis — besides those mentioned 

 in diagnosis — are the greater obliquity of the anterior transverse vein, the greater 

 length of the rami of the fourth longitudinal vein, which bifurcates nearer the 

 base of the wing, and the different shape of the interspace between the distal 

 portions of the first and third longitudinal veins (the two stout veins next the 

 costa beyond the level of the anterior transverse vein) — cp. figs. 1 and 2 ; first 

 and third longitudinal veins connected together for a short distance about the 

 middle of their length ; hairiness as in foregoing species. Halteres cream-buff 

 or light isabella-coloured, knobs and stalks light sepia-coloured at base. Legs 

 isabella-coloured, middle and hind tibiae and distal portions of middle and hind 

 femora darker (brownish drab) ; knees and tips of tibiae (at least those of middle 

 and hind pairs) infnscated (sepia-coloured) ; tibiae each wdth a narrow pale band 

 just beyond base, and (at least in case of middle and hind pairs) wdth a similar 

 band just before the tip. 



Uganda Protectorate; Bahr-el-Gthazal Province, Anglo-Egyptian 

 Sudan. Type from vicinity of Kumi, Umiro, Uganda Protectorate, 3,700 ft., 16-18. 

 viii. 1911 (S. A. Neave : presented by the Entomological Research Committee). 



Since the foregoing description was drawn up, three specimens of this species 

 from M'Volo, Bahr-el-Ghazal Province, Anglo-Egyptian Sudan, 15. i. 1911 

 {H. H. King), have been received for examination from the Entomological 

 Research Committee, by whom one specimen has been presented to the National 

 Collection. These midges, which agree quite well with the typical example of 

 C. neavei, bear the following field-note by Mr. King : — " Biting man ; blood- 

 thirsty at dawn." 



