49 



yellowish patch which usually extends to the eye- margin and conse- 

 quently separates the facial and buccal calli, but the facial and oral 

 calli are united on each side of the middle yellow line ; buccal calli 

 moderate in size, transve'se, and hardly connected with the oral calli 

 along the mouth-edge ; jowls below the buccal calli greyish yellow 

 and extending right across from the lower eye-angles to the mouth- 

 margin ; pubescence on the face composing of rather long brownish 

 Dlack hairs, which leave most of the protuberant shining pale reddish 

 calli bare, as well as the yellow middle line and the upper mouth- 

 margin, though even on parts of these a very few blackish hairs 

 exist ; on the jowls and right across behind the mouth there are 

 numerous longer yellowish white hairs ; back of the head black entirely 

 obscured by a greyish yellow tomentum, flush with the eyes but hollow- 

 ed out behind, and with a very short close blackish postocular fringe. 

 Vertex brownish black, protuberant, and with somewhat abundant 

 blackish hairs ; Irons small, triangular, quite bare from pubescence, 

 shining black with a greyish yelloxv fore-border which extends all 

 round the base of the antennae and joins the yellow middle line of 

 the face, while a very narrow greyish yellow line extends down the 

 extreme eye-margin to the large yellow patch below the facial calli. 

 Proboscis much shorter, longer than half the depth of the head, 

 moderately stout, blackish brown, slightly shining, the sucker-flaps 

 bearing very short blackish pubescence except for a few hairs beneath 

 the sucker-fa is ; palpi dick and short, curved below and inwards, 

 pale reddish yellow, shining, furnished with a short blackish pubescence 

 which is intermixed with a few long yellowish hairs about the base, at 

 the apex there are a very few curved black hairs, about two-thirds as 

 long as the proboscis and moderately dilated about the middle. 

 Antennae usual, shorter than the thorax, and stouter than in the 

 female , first joint about as long as the second joint, somewhat con- 

 spicuously dilated especially at the basal half, pale reddish yellow, 

 shining, bearing mixed short and long black hairs which are not very 



