■ EENEST E. AUSTEN— DIPTEKA. 91 



])roximal half of anal cell usually orange-huff, discal cell and distal extremities of 

 second basal and anal cells often with darker centres enclosing a 'paler area ; alula 

 hyaline, except base, which is slightly infuscated ; hind tihim fringed with blacJc hair 

 on inner and outer side, fringe on inner margin especially conspicuous. 



Head black, vertical and frontal triangles in s and front in ? clothed with black 

 hair, frontal triangle in s shining, front in 5 with a dull clove-brown transverse 

 band above middle, elsewhere shining ; face light greyish or silvery pollinose, tubercle 

 and area immediately above it shining black ; occipital region clothed with yellowish 

 hair, with a more or less conspicuous fringe of blackish hair above in ? ; antenncB 

 clove-brown or black, arista cinnamon. Thorax : pleurae and pectus clothed with black 

 hair ; scutellum clothed with hair of same colour as that covering remainder of dorsum. 

 Abdomen : dorsum clothed with minute, appressed, black hairs, sides clothed with 

 longer black hair ; dorsum of second segment with a larger or smaller dull black 

 median area, resting on front margin, and confined to anterior third ; c? genitalia 

 yellowish-grey pollinose, sparsely clothed with short yellowish hairs. Wings : distal 

 margin of darker area straight, forming a transverse line, majority of veins within 

 darker area usually bordered with orange-buff. Squamce buff-yellow, fringed with 

 similarly coloured hair. Legs entirely black, clothed with black hair. 



ffab. Ruwenzori and East Africa Protectorate : type of s from Euwenzori, 7000- 

 8000 ft. {G. F. Scott Elliot); type of $ taken between Salt Lake and Wawamba 

 Country, Ruwenzori district {G. F. Scott Elliot); other specimens from Ruwenzori, 

 6000-8000 ft. [G. F. Scott Elliot); Mubuku Valley, E. Ruwenzori, 6000-13,000 ft., 

 1st March ; and Makumbu, East Africa Protectorate, Feb. and March (C. S. Betfon). 



I have much pleasure in associating with this fine species the name of its discoverer, 

 Mr. G. H. Scott Elliot. 



In addition to those already mentioned, the following African species also belong to 

 the genus Senaspiis : — S. flaviceps Macq. (the type of the genus), Merodon umbrifer 

 Walk. (List Spec. Dipt. Ins. in Coll. Brit. Mus. iii. 1849, p. 601.— Sierra Leone : 

 closely allied to S. cesacus Walk.), Bolichomerus nigritus Big. (Madagascar), and 

 Plagiocera hcemorrhoa Gerst. (Baron Carl Claus von der Decken's Reisen in Ost- 

 Afrika, Bd. iii. Abth. i. 1869, p. 391, Taf xvi. fig. 6.— Central and East Africa). 



Megaspis Macq. 



Megaspis Macquart, Memoircs de la Societe royale des Sciences, de I'Agriculture et des Arts, 

 de Lille, 1841, p. 87 ; Dipteres Exotiques, t. ii. 3, 1843, p. 37. 



Megaspis bulligeka, sp. n. (Plate III. fig. 8.) 



(S , S. — Length, d (5 specimens) 10-25 to 11*75 mm., ? (5 specimens) 8-8 to 

 12 mm. ; width of head, 6 4-8 to 5-4, ? 3-8 to 5 mm. ; width of front at vertex in 

 $ 1-6 to 2 mm. ; length of wing, cJ 9 to 10, ? 8 to 10 mm. 

 General coloration of body mummy-brown, greater j^ortion of abdomen often elove- 



n2 



