Genera and Species of Blood-suckhuj Muscidce. 285 



XXXVII. — New Genera and Species of Blood-sucking 

 Muscidae from the Ethiopian and Oriental Regions, in the 

 British Museum {Natural History). By Ernest E. 

 Austen, 



Sto moxtdin^. 



Genus Lyperosia, Rorid. 



Lyperosia punctigera, sp. n. 



? . — Length (2 specimens) 3'2 to 3-25 mm. ; width of 

 head 1-2 mm ; width of front at vertex 0*4 inm. ; length of 

 wing 3"5 mm. 



Thorax greyish, ivith lighter median longitudinal stripe and 

 darker markings behind suture ; abdomen olive-grey *, dorsum 

 ivith a sepia-coloured elongate median spot or tapering stripe 

 on second and following segments, second and third segments 

 in addition each with a pair of large and conspicuous, trans- 

 versely oval, clove-brown spots ; ivings hyaline, iridescent ; legs 

 cream-buff or buff, hind tibia dusky, tips of hind femora espe- 

 cially on inner side, hind tarsi, and last three joints of front 

 and middle tarsi dark brown. 



Head light grey, front relatively broad, sides of front 

 (parafrontals) very conspicuous, frontal stripe clove-brown, 

 its sides nearly parallel, though slightly outwardly convex 

 in middle, vertical, frontal, and orbital bristles dark brown ; 

 proboscis short, horizontal portion approximately equal in 

 length to vertical diameter of head, mummy-brown, distal 

 portion immediately before labella dark brown; palpi not or 

 scarcely projecting beyond proboscis, not clavate, or at least 

 sides of distal half parallel, buff, tips brown, clothed with 

 short black bristles, coarser, longer, and especially con- 

 spicuous at tips ; antennce dark brown, upper distal angle of 

 second joint cinnamon-rufous, arista brown, extreme base 

 and a band before middle pale, upper side with about six 

 hairs. Thorax : humeral calli and anterior end of median 

 stripe of a lighter grey than remainder of dorsum; in front 

 of transverse suture an ill-detined stripe of darker grey on 

 each side of median stripe, continued behind suture as a 

 tapering mummy-brown stripe, which terminates at a point 

 midway between suture and front margin of scutellum ; 



* For names and illustrations of colours, see Ridgway, 'A Numen- 

 clature of Colors for Naturalists' (Boston; Little, Brown, & Company, 

 1880). 



Ann. dt Mag. N. Hist. Scr. 8. Vol. iii. 20 



