290 TABANID^E FROM NORTH-EASTERN RHODESIA, ETC. 



anterior margins o£ segments and are widely separated in median line, do 

 not extend to lateral margins, and, in an antero-posterior direction, seldom 

 reach so far as the middle ol: the segments ; dorsum clothed for most part 

 with minute, appressed, buft'-yellow or orange-buff hair, but on sides of first 

 and on basal angles of second segment with brownish, and on dark blotches 

 with dark brown hair ; venter buff or ochraceous-bufF, unicolorous, clothed 

 with minute, appressed, shining, bufF-yellow hairs. Wings : costal cells 

 raw-sienna-coloured ; light blotch occupying distal extremity of wing usually 

 connected with upper end of transverse band, but sometimes not. Halteres : 

 knobs light mummy-brown, usually paler at distal extremity ; stalks buff. 

 Legs clothed for most part with brown or brownisTi hair. 



Fig. 4. — Rhinomyza umbraticola, Austen, § . X 3. 



North-Eastern Rhodesia and Katanga, S.E. Congo Free State : type and 

 one other specimen from the high plateau south of Lake Tanganyika, 

 4500 ft., 2P> and 22.viii.1908, type taken in "dense forest '^ additional 

 specimens from Mporokoso, N.E. Rhodesia, 4500 ft., I.ix.l908 ; Chisinga 

 Plateau, Kalungwisi district, N.E. Rhodesia, 4500 ft., 18-24.ix.l908 ; 

 and Mid-Lualaba Valley, Katanga, S.E. Congo Free State, 3000 ft., l.v.1907 

 {S. A. Neave). 



With reference to the habitat of Rli. iimhraticola , the follow^ing note has 

 been supplied by Mr. Neave : — " This species seems to be confined to the 

 neighbourhood, usually the interior, of patches of ' msitu,' i. e. areas of very 

 dense forest, affording the deepest shade. '■* 



From all other African species of Rldnomyza at present known Rli. um- 

 braticola can at once be distinguished by its spotted abdomen ; it may also 

 be noted that Rli. 7naculata, Surcouf, which occurs in Madagascar and has 

 dark spots on the abdomen, differs from the species described above in 

 having spotted wings. 



