278 E. E. AUSTEN TABANID.E COLLECTED IN 



humeral callus to base of wing on each side, sometimes more or less buried 

 in and concealed by the adjacent pale hair ; scutellum black or clove-brown, 

 yellowish pollinose above, anterior border of dorsum sometimes devoid o£ 

 pollen ; scutellum clothed above with erect black hair, intermingled at sides 



Fig. 2. — Diatomineura virgata, Austen, $ . X 3. 



in ? , and sometimes also in ^ , with bright yellow hair. Abdomen : black 

 blotch on dorsum of first segment extending slightly beyond sides of scutellum 

 (its outer margins usually somewhat concave), narrowed and truncate pos- 

 teriorly, narrowly separated from hind margin of segment except in middle 

 line ; blotches on second, third and fourth segments resting on front margin 

 in each case, but not reaching hind margin ; blotches on second and third 

 segments somewhat quadrate (blotch on second segment narrower behind) ; 

 blotch on fourth segment wider than long ; all foregoing blotches smaller in 



