14* 



conspicuous at the sides of the two basal and on most of the third 

 segments, or there may be only two smai! brownish red spots on the 

 third segment in addition to the brownish red sides of the two basal 

 segments, or in all these cases the two basal segments almost always 

 have brownish black extreme sides which sometimes are very incon- 

 spicuous on the second segment ; pubescence (and tomentum) forming 

 rather conspicuous yellowish grey triangles, diminishing behind in size, 

 on the middle of the second to fifth hindmargins and extending 

 almost to the foremargins at their points, and the yellowish grey 

 pubescence about the hind corners of the second segment and about 

 the sides of the third to fifth segments almost forming the usual rows 

 of greyish lateral flecks so frequent in the Tabanidae, and to confirm 

 this there are (when seen from behind) faint indications of a middle 

 and two lateral rows of rather large brownish spots, while on each 

 side of the middle triangles of yellowish grey pubescence and on the 

 outside of the greyish lateral triangles the abdomen bears similar but 

 black pubescence and is consequently blackish ; hind margins of the 

 second to seventh segments very narrowly pale ferrugineous and bear- 

 ing rather few yellowish hindmarginal fringes ; side-margins of 

 the third to seventh segments rather conspicuously and somewhat 

 broadly pale ferrugineous, and bearing mainly pale sidemarginal pu- 

 bescence which sometimes includes a few black hairs on the two or three 

 basal segments. Ventre greyer than the dorsum, usually with two 



lateral reddish brown or yellowish brown flecks which extend from the 

 disc of the second segment to the hindmargin of the third segment ; 

 these reddish spots sometimes are large as they extend to the side- 

 margin and hardly connect with one another leaving an inconspicuous 

 blackish spot in the middle of each segment, or entirely connect 

 leaving no intermediate blackish dots, while in one case the ventre is 

 entirely greyish black ; the hindmargins of the segments (excepting of 

 the first segment) narrowly yellowish grey in any cases but with no 

 obvious fringes ; pubescence short depressed and pale, though a few 



