hindmargin and with the sides of the blackish parts on the second 

 and third segments slightly brownish ; fourth segment with the middle 

 quarter or more black and with its sides inconspicuously darkened, and 

 usually the intermediate space somewhat darker brownish orange ; the 

 following segments dull black, but sometimes the fifth segment with 

 two inconspicuous small dark brownish orange, lateral spots near the 

 anterior margin ; these black middle markings are not well defined and 

 become vague on the hind half through the great extent of the rather 

 vague triangles of pale yellow pubescence, these yellowish triangles 

 appearing on the second to fourth segments and becoming smaller 

 and more inconspicuous one after other, and resting on a slightly grey 

 piece of ground colour and extending more than half-way up the seg- 

 ment ; the second and third segments very slightly brownish at the 

 extreme sides ; on the four basal segments there are short dense 

 depressed orange pubescence except on the black and brownish dorsal 

 parts, while the hindmargins of all seven segments have pale orange 

 fringes, and there is a small amount of scattered depressed pale pu- 

 bescence on the fifth and sixth segments (where the usual Tabanus-Y\\<e. 

 side-flecks should be), as well as on the' sidemargins ; otherwise the 

 fifth and sixth segments bear rather longer more erect black pubescence, 

 and the small seventh segment also bears some longer erect black 

 hairs. Ventre brownish orange on the four basal segments excepting 

 of a small blackish spot at the middle of the base, this black spot 

 usually occupying the first segment and anterior part of the second 

 segment, but sometimes extends near the hind margin of the second 

 segment ; the three apical segments brown or blackish with very narrow 

 actual hindmargins yellowish ; pubescence dense short depressed pale 

 yellow, but on the seventh segment there are some longer erect black- 

 hairs which slightly extend up to the sixth segment. 



Length : 15-16 mm. 



Male. Head rather large about as wide as the thorax ; irons 

 greyish white, glistening when seen from above but blackish brown 



