African Phlebotomic Diptera. 293 



partly incomplete light border to anal angle; discal cell with 

 two transverse light marks (the more distal one interrupted; 

 across middle third, and a small and rather indistinct light 

 fleck close to distal extremity ; stigma mummy-brown, well 

 marked and elongate, dark blotch below it not darker* than 

 ground-colour; at proximal end of stigma a distinct light 

 mark (process from proximal rosette) running up to costa, 

 and a small light loop (upper extremity of distal rosette) in 

 marginal cell immediately beyond stigma. Halteres : stalk 

 cream-coloured, knob dark sepia. Legs : front tibiae scarcely, 

 middle and hind tibice not incrassate ; basal half or three- 

 fourths of first joint and extreme base of second and third 

 joints of middle and hind tarsi cinnamon. 



Angola : Benguella, November-December 1904, from the 

 same locality as the following species (Dr. F. Creighton 

 Well man). 



Hamatopota desidiosa is a dusky, although not very dark 

 species, without conspicuous markings on the body ; the 

 coloration of the anteiaice, simple apical sinuous mark in 

 the wing, widely separated from the distal rosette, and 

 obscurely banded tibia? will help to distinguish it. 



Hcematopota molesta, sp. n. 



? . — Length (3 specimens) 8"25 to 9"5 mm. ; width of head 

 2-25 to 2'5 mm. ; width of front at vertex 1 mm. ; length 

 of wing 7'4 to 7 - 8 mm. 



Dorsum of thorax dark olive-brown, vAth sides and usual 

 three longitudinal stripes grey : dorsum of abdomen olive- 

 brown, sides of segments more or less olive-grey, third and 

 following segments each usually with a pair of more or less 

 distinct though not sharply defined yellowish grey or grey 

 admedian spots, often fused or partially fused with the grey 

 lateral borders, of which they form an extension towards the 

 middle line ; wings sepia, light markings with a faint yellowish 

 tii ye, usual three rosettes present, rather course and sometimes 

 largely fused together, apical sinuous mark slender, not bifur- 

 cate ; leys dark brown, bands on tibia often hardly distinguish- 

 able, front tibia slightly lighter {mummy-brown) close to base, 

 but scarcely banded, middle and hind tibia? each with a pair of 

 dull cinnamon bands, sometimes obsolete or nearly so in case 

 of hind tibia;. 



Head: front olive-grey, an olive-brown roughly triangular 

 spot on vertex on each side of middle line, lace and jowls 

 light grey; lateral frontal clove-brown spots conspicuous, 

 narrowly separated from eyes, median- frontal spot fairly 



