286 IMr. E. E. Austen o?j new 



between termination of muraray-brown stripe and lateral 

 margin on each side is an elongate fusiform mummy-brown 

 spot; pleurae light grey ; scutellum of same colour as portion 

 of dorsum in front of it ; hairs and bristles on thorax black. 

 Abdomen : elongate median spot on second and third seg- 

 ments shaped like a tnincate isosceles triangle, with base 

 resting on front margin of segment and apex not or scarcely 

 reaching hind margin ; median spot on fourth segment 

 narrower, in shape of a slender, tapering, longitudinal stripe, 

 on each side of which is a roughly quadrate patch of light 

 mummy-brown dots, which may be more or less confluent ; 

 clove-brown transversely oval spots on second and third 

 segments not in contact with front, hind, or lateral margins ; 

 hair on abdomen uniformly dark brown. JVings : veins 

 brown ; first posterior cell distinctly contracted at tip ; poste- 

 rior transverse vein strongly bent outwards. 



Uganda : two specimens (co-types) from the Nile Pro- 

 vince, June 1906 [the late Dr. JF. A. Denshmn). The col- 

 lector's field-note on this species is as follows : — " These 

 flies were noticed in great numbers in one camp only near 

 the Nile, and Mere very troublesome to my boys early one 

 sunny morning ; they clustered thickly on any small sore, 

 and quickly filled themselves; though preferriug to feed in 

 this way, they seemed also to insert the proboscis into sound 

 skin.^' 



The conspicuous abdominal markings described above are 

 an unusual feature in Lijperosia, and. will enable the present 

 species (of which a coloured figure will appear shortly in an 

 official publication) to be distinguished without difficulty 

 from any of its congeners hitherto described. 



Genus Stygeromyia, Austen. 

 (Ann. & Mag. Nat. Hist. ser. 7, vol. xix., May 1907, p. 445.) 



Stygeromyia sanguinaria, sp. n. 



S ? .— Length, ^ (1 specimen) 7 mm., ? (1 specimen) 

 6'75 mm. ; width of head, S ^*6 mm., ? 2*4 mm. ; width 

 of front at vertex, S 05 mm., ? 06 mm. ; length of wing 

 7 mm. 



Grey, clothed with black hairs and bristles, $ somewhat 

 darker thati ^ ; closely resembling Stygeromyia maculosa, 

 Austen iloc. cit. p. 447), in general appearance and also in 

 markings of dorsum of thorax, but distinguished by abdomen 

 being without sharply defined mummy-brown spots, not in con- 

 tact with hind margins of segments, and by proboscis, except 



