2S2 E. E. AUSTEN TABANID^ COLLECTED IN 



Diatomineura inornata, sp. n. 



$ . — Length (1 specimen) 17*5 mm. ; width o£ head 5*4 mm. ; width of 

 front at vertex just under 1 mm. ; length of prohoscis 11 mm. ; length of 

 wing 16*4 mm. 



Dorsum of thorax sejna-coloured, nnstriped ; abdomen russet, without dark 

 markings ; wings suffused ivith light mummy -hroiun^ costal cells and extreme 

 base dark mummy-brown ; legs cinnamon-rufous, middle tihice ochraceous-biff, 

 tips of tarsi brown. 



Head buff-yellow poUinose ; sides of face brown, a shining dark brown 

 callus directly below each antenna, a dark brown, ill-defined, median streak 

 on front above base of antennae, and a small, cinnamon-rufous fleck on 

 vertex ; jowls and basi-occipital region clothed with cream-buff-coloured 

 hnir ; paljn and antennce cinnamon-rufous^ first two joints of latter greyish 

 poUinose and clothed with yellowish hair ; proboscis clove-brown, tips of 

 labella burnt- sienna -coloured. Thorax : dorsum dark gallstone-yellow 

 poUinose, clothed with short maize-yellow hair, which posteriorly is inter- 

 mixed with longer blackish hair ; a conspicuous ridge of longer maize-yellow 

 hair on each side above base of wing and on postalar callus ; pleurae and 

 pectus clothed with maize-yellow hair. Abdomen : dorsum clothed on sides 

 of first and second segments with short, appressed, ochre-yellow hair, longer 

 on posterior angles of first segment ; third and following segments clothed 

 with minute black hairs ; posterior angles of second and fourth segments 

 clothed with silvery hair, which is continued as a transverse band along hind 

 margin of fourth segment, but on central portion of posterior border of 

 second segment is replaced by minute, appressed, ochre-yellow hair ; posterior 

 angles of fifth and sixth segments fringed with whitish hairs ; venter without 

 dark markings, clothed with minute, appressed, ochre-yellow hairs, which 

 are longer on terminal segment. Squamce and halteres ochraceous-buff. Legs- 

 clothed v^ith minute ochre-yellow or yellowish hairs ; front tibiae buff-coloured 

 at extreme base in front. 



Katanga, S.E. Congo Free State : between Bunkeya and Kambove_^ 

 3500 ft., September, 1907 (Br. Sheffield Neave). 



This species, which, like the foregoing, belongs to the JJ. cethiopica group,, 

 is recognisable by the absence of markings on the abdomen. 



Genus PANGONIA, Macq. 



Pangonia oldii, Austen. 



Fangonia oldii, Austen, Ann. Mag. Nat. Hist. ser. 8, vol. i, p. 215 (1908). 



Of this species, which was originally met with in the Nyasaland Pro- 

 tectorate, fourteen females ranging in length from 14 to 17 mm. were 

 brought back by Mr. S. A. Neave from the Katanga District, Congo Free 



