100 Mr. E. E. Austen on new 



centre ; hind margin with a series of large, conspicuous, tri- 

 angular light marks, which respectively occupy distal angles 

 of first, second, third, and fifth posterior cells ; a similar but 

 smaller light mark in distal angle of axillary cell ; basal half 

 of axillary cell hyaline, marked with a more or less distinct 

 brown spot near base, and more distally with a larger or 

 smaller offshoot from the brown colour in the second basal 

 cell ; a series of small oblique light marks running across 

 posterior cells, often broken up into a pair of elongate dots 

 in each cell ; discal cell with a pair of narrow transverse 

 light marks, sometimes interrupted, and in addition some- 

 times with a light spot at one or other extremity, or at both 

 extremities ; first submarginal cell with a pair of light marks 

 at base ; both basal cells hyaline at base, first basal cell with 

 a transverse light mark in middle, connected along second 

 longitudinal vein with another transverse light mark at 

 commencement of distal third, second basal cell with a 

 transverse light mark at end of basal third and a more 

 or less completely closed light loop close to distal extremity ; 

 anal cell semihyaline at base, and with a transverse light 

 mark beyond middle; first and second costal cells and 

 extreme base of wing hyaline; alula hyaline, with a darker 

 centre. Halteres primrose-yellow, stalks straw-yellow. 

 Legs : front tibiae slightly incrassate ; first joints of middle 

 and hind tarsi, except tips, cream-buff. 



Congo Free State (Katanga District) : three specimens 

 (co-types) from Ruwe, Lualaba River, circa 11° S., 26° E., 

 Feb/l906 (Dr. A. Yale Massey). 



The conspicuous light cross-band at the tip of the wing 

 will form a convenient guide to the identification of this 

 species. From Hamatopota longa, Ricardo (Nyasaland and 

 East Africa Protectorates), and another species from 

 Nyasaland, at present undescribed, the wings of which also 

 exhibit an apical cross-band, H. divisapex is distinguished at 

 once by the fawn-coloured scutellum. H. sanguinaria, 

 Austen (North-western Rhodesia), in which the scutellum is 

 somewhat similar in coloration, has no light cross-band at 

 the tip of the wing, and owing to other characters also, such 

 as the coloration and marking of the legs, cannot be confused 

 with the present species. 



Hcematopota coronata, sp. n. 



$ . — Length (3 specimens) 10 to 10*75 mm. ; width of 

 head 3'25 to 3-75 mm. ; width of front at vertex 1*2 to 

 15 mm. ; length of wing 7*5 to 8'75 mm. 



