TEN NEW AFRICAN HAEMATOPOTA. 



159 



Thorax : Scutum dark brownish, with five distinct grey stripes running its whole 

 length, the median stripe narrower than the others, the next pair more brownish 

 behind the post-sutural spots ; pubescence short, sparse, pale. Scutellum grey in 

 the middle, sides dark brown. Pleurae greyish, nearly bare, a brown spot just above 

 the sternopleural suture. 



Abdomen rather dark brown, with a reddish tinge towards the base ; posterior and 

 lateral margins of tergites pale ; pairs of indistinct pale spots on tergites 3-0 ; 

 traces of a median pale line, most distinct on tergites 4 and 5. Pubescence mainly 

 dark, some pale hairs along margins of tergites and on venter. 



Fig. 10. Haematopota peHarhan'^, Erlw., sp. u. 



Legs almost uniformly rather dark brown, tibiae without rings ; front tibiae- 

 distinctly thickened. Pubescence black, except for some pale hairs on the under side 

 of the hind femora. 



Wings Aaxk brownish, with well-defined very Ught brown markings ; apical mark 

 double. Squamae pale. Halteres with yellowish stem ; knob brown, the tip hghter. 



Length, 10 mm. ; wing-length, 8"3 mm. ; width of head, 3'1 mm. ; ^ddth of front 

 at vertex, I'l mm. 



Congo : Zambi {Van Saceghem), 1 $ (type ; presented to the British Museum by 

 the Institut Pasteur, Paris) ; Upper Lubingo, 14.xii.l915, 2 $ (in coll. of Institut 

 Pasteur). 



H. perturbans is a very distinct species of the H. pertinens group. It differs from 

 H. pertinens, Aust., in the more shining first antennal joint, black frontal callus, more 

 distinctly striped thorax, partly reddish brown abdomen, rather darker legs, and in 

 the wing-markings. 



