2. TABANUS 411 



the upper part and on the tuft near the root of the wing, but without any- 

 black hairs intermixed on the middle of the mesopleur^. 



Abdomen proportionately short, with the four basal segments nearly- 

 equal in width and the remaining segments forming a blunt cone, d-all black, 

 but with the second to fifth hindmargins obscurely light grey, and with three 

 indistinct rows of flecks of which the middle row is the most distinct and is 

 composed of rather large triangular patches of light grey pubescence at the 

 middle of the hindmargin of each of the five basal segments (but smallest on 

 the basal one) and which barely extend up one-third the length of each seg- 

 ment ; side-flecks less distinct after the second or third segment, rather 

 rounded, sometimes ferruginous on the second and third segments, and 

 not reaching the front margins but extending to the hindmargins and connect- 

 ing there with the dark orange sidemargins ; sidemarginal hind corners 

 of the fourth and fifth segments orange and connected with the pale 

 hindmargins ; in addition to these markings the second and third segments 

 are usually orange or chestnut brown on the foremargin between the side- 

 flecks and the sidemargins or on the front part of the side-flecks. Pubescence 

 on the disc suberect, fairly long, and black, but pale on the middle triangles 

 and along the sides of the hindmargins, while down the sidemargins it is 

 longer and is black about the basal corners but greyish white elsewhere. 

 Belly dull greyish black, but less dusted with grey than in T. cordiger, and 

 with broader yellowish hindmargins of segments ; pubescence soft, pale, and 

 fairly long with no (or scarcely any) black hairs on the sixth segment, but 

 Avith numerous longer curved black bristly hairs on the seventh segment. 



Legs dull black, but luteous on the tibice except for the black apical half of 

 the front pair, the brown apex of the middle pair, and the blackish apical sixth of 

 the hind pair ; the hind tibiae more luteous than in T. cordiger, but with the 

 apical sixth more contrastedly black ; pubescence much as in T. cordiger, but 

 with fewer long black hairs on the anterior tibiae and shorter ciliation on the 

 hind tibiae, and the short pubescence on all the tibiae much more extensively 

 black so that very little pale pubescence is obvious except towards the 

 underside of the hind pair ; the shining black bare underside of the front 

 femora rather conspicuous. 



Wings very similar to those of T. cordiger, but the veins about the base 

 apparently slightly blacker. Halteres with blackish brown knobs. 



Head much smaller and less rounded in front than in the male ; frontal stripe 

 brownish ashy grey, very slightly narrowing towards the lower part and 

 about four times as long as its broadest part ; lower callus shining black, 

 wrinkled, rather higher than broad, subquadrate, notched on the foremargin, 

 and not quite extending to the eyemargins, but extending upwards at the 

 middle and connecting rather narrowly with the elongate shining black middle 

 callus, which is quite three times as long as Ijroad ; ocellar space indefinitely 

 blackened but not enough to call it a callus ; upper two-thirds of the 

 frontal stripe bearing rather abundant short rather inconspicuous (because 

 depressed) black pubescence but at the sides with a few inconspicuous pale 

 hairs down to the lower callus ; face (except on the upper part of the side- 

 cheeks) greyish white and clothed with rather dense white pubescence which 

 is longest about the mouth ; frontal triangle bare of pubescence but 

 covered with brownish orange dust (which is easily rubbed off on the middle 

 part and then shows the shining black ground colour as a somewhat lunulate 

 mark) which extends downwards to just below the antennae and even 

 further in a darker brown hue down the side-cheeks and along the margin 

 of the eyes, and this upper part of the side-cheeks always bears some black 

 pubescence ; jowls broacl and greyish white, while from them a fairly broad 

 bare conspicuously whitish postocular rim extends right up to the vertical 

 space, which when viewed from above is well puffed out on the upper quarter 

 of the eyes to about one-quarter as much as the breadth of the frons ; 

 behind the pufled-out part of that bare rim there is a moderately long pale 

 or brownish yellow ciliation which (when seen from in front) projects a litlle 

 above the eyes, but below that part there is only a short inconspicuous pale 

 ciliation which is continued downwards until it merges into the long pubescence 

 of the jowls ; on the front part of the longer upper postocular ciliation there 



