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



elsewhere ; dorsum of scutellum clothed with blackish hair, and exhibiting a 

 deep hind border (narrowing to each basal angle) of olive-grey pollen ; pleurae 

 and pectus olive-brown, covered with grey pollen and clothed with yellowish 

 hair. Abdomen : clove-brown median blotch on tergite of first segment as wide 

 as scutellum, almost reaching hind margin of segment but its posterior angles 

 rounded off or concealed by yellowish-grey pollen ; clove-brown median blotch on 

 second tergite quadrate, extending from base to a little beyond middle, its 

 posterior margin indented by apex of a dull and ill-defined olive-pollinose median 

 triangle resting on hind margin of segment ; tergite of third segment with a 

 transversely elongate clove-brown median blotch at base, rather wider but less 

 deep than blotch on second segment (occupying about centre third but not 

 reaching to middle of segment), with its hind margin indented by apex of an 

 olive-pollinose triangle, resting on hind margin and similar to but larger than 

 triangle on second segment ; on tergites of first three segments clove-brown blotches 

 and olive-pollinose triangles together form a broad, dark, median longitudinal 

 stripe, with concave sides ; lateral margins of tergites of second and third 

 segments somewhat infuscated (irregularly speckled with blackish grey) ; hind 

 borders of tergites of third and following segments yellowish grey pollinose, 

 lateral borders of fourth and following tergites orange-ochraceous ; dorsum 

 clothed partly with minute, appressed black hairs (mainly confined to last four 

 segments and to dark median area or longitudinal stripe on first three segments), 

 partly with glistening pale yellowish hairs ; orange-ochraceous areas on first two 

 segments clothed with pale yellowish hairs (longer as usual on posterior angles of 

 first segment), lateral extremities of following segments also clothed with pale 

 yellowish hairs, which likewise clothe each extremity of hind borders of these 

 segments ; anterior portion of orange-ochraceous areas on third segment clothed 

 with black hairs ; venter cream-buff, irregularly speckled here and there with 

 dusky grey, and clothed with minute, appressed, glistening, cream-buff-coloured 

 hairs. Wings : costa mummy-brown, first longitudinal vein cinnamon-rufous, 

 other veins tawny. Squamae cream-buff. Halteres : stalks ochraceous-rufous, 

 knobs fawn-coloured. Legs : coxae greyish clove-brown, front pair clothed with 

 black hair mixed with whitish hair ; femora clothed partly with black, partly with 

 yellowish hairs, upper and anterior surfaces of hind femora clothed with black 

 hairs ; front and middle tibiae clothed with minute, glistening, ochreous hairs, 

 hind tibiae clothed with black hairs ; upper surface of front tarsi clothed partly 

 with minute black hairs, partly with minute ochraceous hairs, upper surface of 

 middle tarsi clothed with minute black hairs (hind tarsi wanting in case of type) ; 

 tips of last four joints of front and middle tarsi dark brown. 



Portuguese East Africa, 1908 {Dr. W. W. Woolliscroft : presented by 

 the London School of Tropical Medicine, per Lieut.-Col. Alcock, C.I.E., 

 F.E.S.). 



From Diatomineura (Pangoma) rondanii, Bertoloni (Mem. Accad. Sc. Bologna, 

 T. xii, 1861, p. 56, fig. 8), which was described from a Q from Inyambane, 

 D. hastata is distinguishable inter alia by the presence of the dark median stripe 

 on the proximal portion of the abdomen. The dark and shining facial calli, 

 shorter first antennal joint, ochraceous-rufous third joint, and redder legs of the 

 species just described will serve to distinguish it from the foregoing species, 



