282 Ml-. E, E. Austen on new 



Notes supplied by collectors show that C. grahuniii is a 

 troublesome pest, its bites, like those of other midges, pro- 

 ducing irritating wheals on the skin : fuller information will 

 be given iu the author's forthcoming work ou ' African 

 Blood-sucking Flies.' 



CuHcoides brucei, sp. n. 



? . — Length (3 specimens), exclusive of head, 1 to 1-6 

 mm. ; length of wing 1*5 mm. 



Colour of body {in dried specimens) mouse-grey or olive- 

 brown, ivith more or less distinct dark brown longitudinal 

 markings on dorsum of thorax ; head small, in dried specimens 

 bent downwards beneath anterior portion of thorax, so as to be 

 invisible from above; wings yellowish, semitransparent, 

 sparsely clothed with minute brownish hairs, and spotted and 

 blotched ivith dark brown and mouse-yrey, branches of fourth 

 and fifth longitudinal veins also bordered more or less with 

 mouse-grey. 



Head : palpi dark brown ; basal joints of antenna dark 

 brown. Thorax : dorsum iu some specimens in front with 

 a median dark brown mark, and a little further back a pair 

 of dark brown admedian stripes extending somewhat beyond 

 middle of dorsum ; behind posterior ends of admedian stripes 

 and a little nearer middle line a pair of somewhat curved 

 dark ])rown flecks may sometimes be seen. Abdomen clothQdi 

 with brownish hair. JVings: darkest and most conspicuous 

 marks are two ou and adjacent to costa ; of these, one con- 

 sists of a narrow, elongate, clove-brown mark reaching from 

 costa to third longitudinal vein, and extending a little way 

 on each side of cross-vein between first and third longitudinal 

 veins; the second is a large, oblong, dark brown mark, with 

 its inner margin somewhat concave and its outer margin 

 more or less convex, situate midway between former mark 

 and tip of wing and reaching from costa to upper branch of 

 fourth longitudinal vein; tip of wing above upper branch of 

 fourth longitudinal vein is occupied by a mouse-grey blotch ; 

 in distal fourth of wing are two mouse-grey quadrate blotches, 

 of which one connects the mouse-grey borders of the two 

 branches of the fourth longitudinal vein, while the other 

 extends from lower branch of fourth to mouse-grey border 

 of upper branch of fifth longitudinal vein; remaining 

 markings consist of a sharply defined, mouse- grey, oval spot 

 iu centre of cell enclosed by branches of fifth longitudinal 

 rein; a small, mouse-grey, quadrate blotch below cross-veiu 



