leaving only a narrow yellow tomentose median line. Buccal calli large, 

 separated from the eye-margins and not reaching the mouth-edge. Pubes- 

 cence on the head yellow, that on the jowls longer. Palpi dark brown, 

 yellow pubescent. First and second antennal joints the same in length; third 

 joint about as long as the basal two joints together. The first antennal joint 

 dark yellow, blackish towards the end ; the second yellow, towards the 



upper side and the end becoming blackish ; the third at the base yellow 



I 

 and then black apically. The first and second antennal joints covered 



with black hairs. The ground colour of the thorax and scutellum dark 

 br6wn, on the former there are two narrow yellowish stripes which 

 are extending about the anterior two-thirds of the disc. The sides of 

 the thorax with broad yellowish grey stripes at the anterior parts of 

 the wing-bases from which to the humeri the brown ground colour is 

 seen. All the pleurae greenish grey. Pubescence on the thorax and 

 scutellum yellow, on the disc scarcer and shorter, at the sides long 

 and dense. The first abdominal segment at the sides yellow, in the 

 middle black ; the black spot on this segment at the antero-lateral 

 angles rounded, the outer margin below the angles incised and then 

 gradually extending obliquely outwards to the posterior margin of the 

 segment. The second abdominal segment deep yellow, but at whole 

 the hind margin black, and in the middle there is a broad black stripe 

 which becomes broader towards the posterior end and extends to the 

 third segment, and which has a distinct long yellow median line con- 

 tinuing to that on the third segment. - The following segments black, 

 on the fourth and fifth segment*, there is a narrow median stripe which 

 is rather greyish. The hind margins of the sixth and seventh segments 

 dark yellow. Pubescence on the abdomen yellow at the sides of the 

 second segment, and yellowish grey on the four apical segments. The 

 first, second and third segments of the underside yellow, the former 

 with a small blackish grey spot in the middle ; the fourth segment in 

 mostly part yellow, hut the hind margin broadly black ; the following 

 segments black. Pubescence on the belly depressed, yellow. Legs 



