﻿ERNEST E. AUSTEN — NEW AFRICAN TABANIDAE — PART III. 407 



grey, sometimes interrupted in middle line, posterior angles of tergite of first 

 segment and lateral extremities of tergite of second (not always visible from 

 above) also grey ; dorsum clothed with minute, appressed, dark brown hairs, 

 except on grey hind borders, etc., which are clothed with whitish hair, posterior 

 margin of first tergite sometimes with a few yellowish hairs on each side of 

 middle line ; venter partly grey, partly dark brown, ventral scutes of first three 

 (visible) segments grey, except anterior border of third segment, a quadrate 

 median blotch on this segment, starting from base but not quite reaching hind 

 margin, and a small and not sharply defined median patch on second segment, 

 which are dark brown or brownish ; ventral scutes of four following segments 

 dark brown, hind margins and posterior angles of fourth to sixth segments 

 inclusive grey, hind margin of ventral scute of seventh segment also sometimes 

 grey ; ventral scutes of second to fourth segments inclusive, and grey areas of 

 two following ventral scutes clothed with appressed glistening whitish hairs, hind 

 margin of ventral scute of last segment clothed with whitish or yellowish hair, 

 ventral scutes of last three segments, except as stated, clothed with dark brown 

 or blackish hair. Wings : pale markings on proximal side of stigma, especially 

 towards costa, slightly tinged with cream-buff; stigma dark brown, elongate 

 (usually distinctly longer than in H. bullatifrons) and conspicuous, with a large 

 and more or less quadrate, dark sepia-coloured area below it, as shown in fig. 1 ; 

 discal cell with two pale marks (sometimes connected or partly fused together) in 

 its proximal extremity, and a couple of small pale spots, one more or less above 

 the other and usually separate, at or near commencement of its distal third ; a 

 more or less indistinct pale mark usually present in extreme apex of wing, at 

 distal extremity of second submarginal cell, beyond ordinary sinuous mark, 

 which starts from costa at distal extremity of first submarginal cell and termi- 

 nates abruptly soon after crossing anterior branch of third longitudinal vein. 

 Squamae dark sepia-coloured. Halteres : knobs sepia-coloured, paler (more or 

 less cream-buff) at tips, stalks buff or cream-buff, entire halteres occasionally 

 cream-buff, except base of knobs, which is slightly brownish. Legs clothed with 

 black hair, except pale bands on tibiae which are clothed with glistening whitish 

 hair ; whitish hair is also present on front and hind coxae (in case of front coxae 

 sometimes clothing whole of anterior surface, sometimes confined to a grey band 

 at base), on proximal three-fourths of middle femora (on under side of pale area 

 on which it forms a long, fine fringe), and occasionally mixed with the black 

 hairs on anterior surface of proximal half of hind femora ; upper and under 

 surfaces of front femora and of distal halves of hind femora, and under surface 

 of distal extremities of middle femora fringed with black hair, coarser and 

 denser than elsewhere at distal extremities of hind femora ; front tibiae beyond 

 pale band moderately swollen, outer surface of hind tibiae beyond pale band with 

 a dense and conspicuous fringe of black hair, causing these tibiae on a cursory 

 inspection to appear swollen also ; first joint of middle and hind tarsi usually 

 paler (more or less buff or cream-buff) at base. 



Ashanti and Sierra Leone Protectorate : type from Obuasi, Ashanti, 



13. vi. 1907, "caught on boy's arm in bush-path ; two para-types from Obuasi — 



2. x. 1907, " caught in bush-path, 10 a.m.," and 6. xi. 1907, "caught in bush, 



3 p.m." ; a third para-type from Kumasi, Ashanti, 19. x. 1907, "caught on arm 



27226 E 



