IBS 



which is intermixed with rather abundant l>ut scattered still short black 

 hairs on about the upper two-third ; frontal callus castarteous blacV, 

 small, almost oval and with a very narrow linear upper extension 

 which is about two and a half times as Long as the callus proper, not 

 touching the eye-margins ; vertex more or less darker, covered with 

 numerous stout but still short black pubescence intermixed with some 

 yellowish inconspicuous hairs, behind which there is some short pale 

 brownish yellow and black hairs but not very conspicuous. Frontal 

 triangle greyish yellow, slightly raised from the eye-margins, with a 

 very fine but distinct median sulcus throughout, and with the orange 

 yellow tomentosc but not very conspicuous double lunules just above 

 the antennal fossae. Face moderately convex, covered with a yellow- 

 ish grey comentum ; epistoma about as deep as wide, with a narrow 

 and rather shallow lateral pits, more yellowish above, and bearing a 

 amount of short soft yellowish pubescence on about the upper lateral 

 corners, and on the rest bare ; cheeks narrower than the half of the 

 epistoma, paler towards the inner margin and below, covered with 

 abundant but not dense very short inconspicuous yellowish whiter 

 pubescence which rapidly grows longer about the lower part and on 

 the jowls, and which is again shortened (but still long) en the lower 

 part of the back of the head ; absolute back of the head hollowed 

 out and covered with a yellowish grey tomentum and some scattered 

 whitish soft hairs ; postocular bare rim not very broad, somewhat 

 narrowed about the temple region, behind which is a short but 

 comparatively long pale brownish yellow ciliation of numerous out- 

 standing (not overlapping) hairs which become shorter about the lateral 

 angles of the eye>. Proboscis dull black, rather small ; the stalk 

 bearing abundant somewhat long yellowish erect hairs behind ; the 

 sucker-flaps about twice as long as the stalk, and much darker,' fur- 

 nished with scattered brownish erect bristles beneath. Palpi pale 

 brownish yellow, with the basal joint more or less blackish beneath ; 

 second joint slender and long, wholly four and a half or about live times 



