160 



ciliation beneath except on the apical quarter, and with a not Very 

 conspicuous thin sparse longer almost outer-ventral ciliation ; the tiny 

 inner-dorsal and dorsal bristles on the hind tibiae are mostly yellow on 

 the basal two-thirds with only scattered black ones intermixed, but on 

 the last third they are all black. 



Abdomen less quadrate than in the female because the fifth and 

 sixth segments are very much narrower than the preceding one, and 

 rather pointed at the tip, and with slightly less extended pale orange 

 colouring because the black dorsal line (though narrower especially on 

 the third joint where it is only about middle nineth or tenth) is more 

 defined and becomes more distinct on the hind half of each segment 

 through the smaller extent of the rather vague triangles of pale yellow 

 pubescence, but sometimes the middle quarter of the abdomen may be 

 darkened by a parallel-sided dorsal stripe to the end of the fourth 

 segment, though the usual reddish markings are still quite traceable, 

 and this makes the whitish triangles more distinct, even on the fifth 

 segment, and the sides of the abdomen is clothed with conspicuous 

 black hairs on each sep;ment, and the whole abdomen appears to be 

 more brownish because of the universal long black pubescence on the 

 whole of the segments excepting of a very few inconspicuous short 

 pale hairs at the sides of the each segment where the usual grey side- 

 flecks occur as in Tabanus and of the very few inconspicuous orange 

 fringes on the hindmargins of the segments. The hindmarginal fringes 

 brow a little longer at the hind corners of the fourth segment, and on 

 the fifth segment with longer and more restricted to the side-quarters ; 

 sixth segment with longer yellow hairs on just the sidemargins ; side- 

 marginal pubescence black, except narrowly at the ends of the segments 

 and on the sides of the sixth segment, and the short black pubescence 

 darkens the sides of the second, third, and fourth segments. Ventre 

 orange on the four basal segments except for a small black spot at 

 the middle ot the base, but the end segments all blackish ; pubescence 

 short, dense, and pale yellow, but longer and all black on the basal 



