TABANINAE. — PART IV. 297 



lower margin ; face, jowls, and basioccipital region yellowish-grey pollinose, 

 fairly thickly clothed with pale-yellowish hair, region between antenna and eye 

 on each side sometimes minutely speckled with mummy-brown ; palpi light 

 isabella-coloured, outer surface of terminal joint towards distal extremity 

 sometimes with a darker tinge, proximal joint and base of terminal joint below 

 clothed with pale yellowish hair, outer surface of terminal joint clothed with 

 minute black hairs ; first two joiuts of antennae as in foregoing species, except 

 that first joint is perhaps slightly less swollen, third joint mummy-brown or 

 sepia-coloured (expanded portion sometimes paler at base and terminal annulus 

 often dark brown or clove-brown), expanded portion of third joint viewed from 

 side cuneate, being deep just beyond base and thence tapering gradually to distal 

 extremity. Thorax : dorsum sparsely clothed with minute, appressed, yellowish 

 hairs, swelling on each side between bifurcations of transverse suture clothed, 

 except above, with outstanding dark brown or blackish hair ; pleurae and pectus 

 smoke-grey, clothed with yellowish-white hair. Abdomen : mummy-brown area 

 of dorsum clothed with short, appressed hair of same colour ; venter, except 

 last two segments, light drab-grey pollinose, ventral scutes of last two segments 

 smoke-grey, hind margins of ventral scutes of all segments except last cream- 

 buff, ventral scutes of second to fourth segments inclusive clothed with minute, 

 appressed, yellowish hairs, ventral scutes of penultimate and antepenultimate 

 segments clothed with longer and more erect dark brown hair. Wings : agreeing 1 

 closely with those of foregoing species as regards both coloration and markings 

 (cf. fig. 4) ; pale loop in marginal cell beyond stigma small or even reduced to a 

 spot, apical sinuous mark indistinct or obsolete in middle of second submarginal 

 cell, otherwise distinct. Squamae light drab. Halteres : stalks cream-coloured, 

 seal-brownish at base, knobs seal-brown, with a narrower or broader cream-buff 

 outer edge. Legs : as in foregoing species. 



Uganda Protectorate : presented to the British Museum (Natural 

 History) by Surgeon-General Sir David Bruce, C.B., F.R.S., A. M.S. 



For notes on the affinities of Hacmatopota edax reference should be made to 

 the concluding paragraph of the description of the foregoing species. 



Haematopota nigripennis, sp. n. (fig. 5). 



Q. — Length (4 specimens) 10*75 to 12 mm.; width of head 4 to nearly 

 4*5 mm. ; width of front at vertex 1*4 mm. ; length of wing 9*4 to 10*5 mm. 



Medium-sized to moderately large, black or blackish species, with wide head and 

 long antennae, of which the first joint is characteristically swollen, while the third 

 joint is elongate and attenuate. Wings and dorsum of thorax clove-brown, with 

 sharply defined milk-white and light grey markings respectively, as shown in fig. 5 ; 

 dorsum of abdomen shining black (first two segments clove-brown), hind border of 

 each segment cinereous or grey ; legs mainly black, tibiae and middle and hind tarsi 

 ivith milk-white or cream-coloured bands, as shown in fig. 5. 



Head : front fairly broad and broader below than at vertex, clove-brown, with 

 light grey markings along each side and a duller grey mark next to inner 

 extremity of each lateral frontal spot, as shown in fig. 5 ; median frontal spot 

 distinct, often exhibiting a short transverse black mark above actual spot, lateral 



