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Transactions. 



at middle line of eye, three-jointed, slightly separated at the origin, not 

 elongated, almost black, and covered with a short dense pubescence ; 1st joint 

 short ; 2nd about half as long as 3rd, and bearing on the anterior margin 

 a number of short bristle-like hairs, with a single strong bristle on upper 

 anterior angle ; 3rd joint orbicular in profile, but laterally flattened ; arista 

 dorsal, of moderate length, its 2nd joint short, the whole pubescent. 



Face and cheeks yellow, the former depressed in front view but sinuated 

 in profile (fig. 11) ; facial grooves extending well under the eye, are angulated 

 before reaching the posterior orbital margin ; vibrissae and vibrissa! angles 



Fig. 11. — Lateral view of caput, 

 and vibrissa! angles. 



po, post-orbital bristles ; v, vibrissae 



Fig. 12. — Chaetotaxy. Ku, humeral bristles; phu, post-humeral ; dc, dorso- 

 centrals ; prs, pre-suturals ; sa, supra-alars ; pa, post-alars ; 

 j)s, post-suturals ; sip, scutellar lateral ; sap, small apicals. 



distinct (fig. 11, v) ; oral margin bristly, angulated, yellow, but darker in 

 certain lights at the vibrissal angles ; posterior orbits yellow, sinuated, 

 broad, but narrower above ; occiput rounded, piceous in certain lights. 

 Proboscis withdrawn, yellow, and with a few yellowish hairs. 



Thorax not elongate, 



black in ground-colour, with a minute grey 



pubescence ; dorsum anteriority humped in profile. Chaetotaxy (fig. 12) 

 Dorso-centrals (dc) 3 in number, the 2 anterior small, the 3rd (towards the 

 suture) large and distinct ; a large humeral bristle (hu) and a few smaller 

 ones ; 2 small post-humerals (phu) ; 2 pre-suturals (prs), the outer large, 

 the inner small ; 3 large post-suturals (ps) ; 2 supra-alars (sa), the anterior 

 small, the posterior large ; 2 post-alars (pa), the anterior large, the posterior 

 small. Scutellum with margin constricted, giving a sinuated and trilobed 

 appearance ; a large lateral bristle on anterior lobe near the suture (si? ), 

 and a pair of small apicals (sap). Four meso-pleural bristles, of which 



2 smaller ones arise posteriorly along the dorso-pleural suture, a single 

 large one at the upper posterior angle — that is, at the angle of the meso- 

 and dorso-pleural sutures ; just beneath this large one, on the meso-pleural 

 suture, is situated the 4th smaller bristle ; a single pro-pleural bristle ; 



3 small sterno-pleural bristles along the sterno -pleural suture, and a number 

 of small ones upon the apex of this pleura. 



