Uiptera/rom South Africa. 101 



middle of tlie disral cell and the base of the second longi- 

 tudinal is o|)|)o>«ite it, the first posterior cell is slightly 

 narroweti at its opining. 

 Length 17 miliiin. 



I. ^^'in;.'^< rli'iir at base, the fore border with dark shadinfr froiu which a 

 dark baud crosses the wing attaining the posterior border. 



This species is distin«:uished by the wings, which apparently 

 dittcr from any South African Exoprosopa specii^s as yet 

 described, and requires a new group in Loew's Division I., 

 defined as above. 



Exoprosopa nova, sp. n. 



Two males from Fort Juhnston, Nyasaland [Rendall] ; 

 one fcmaU' from Delagoa Bay [Mrs. Montt'iro), in the British 

 Museum Collection. 



Black, with red on the sides and apex of abdomen, red 

 scutellum, and reddish-yellow face. 



Face red. light yellow round the mouth, pubescence black 

 and yellow on the red parts, light yellow round the mouth, 

 with bright yellow scaly hairs ; forehead black on the 

 vertex, with a narrow black stripe on each side bordering 

 the eyes nearly as far as the antenna?, pubescence black. 

 Antennae black, the first two joints with black hairs; the 

 bristle stout, as long as the third joint. Hind part of head 

 with yellow scaly hairs. Collar of bright yellow hairs. 

 The sides of thorax and above the halteres with yellow 

 pubescence and a few black hairs above; breast with paler 

 yellow hairs. Thorax blackish brown, with yellow scaly 

 hairs. Scutellum red, black at the base, with yellow scaly 

 hairs and black bristles. Abdomen black, with red on the 

 lateral borders of all the segments except the first, and with 

 a narrow red band on the posterior borders, broader on the 

 fifth and sixth, the seventh si gment is wholly red ; pubes- 

 cence black, with some yellow scaly hairs, which are most 

 noticeable on the sides and on the last two segments ; sides 

 of abdomen with yellow hairs on the first two segments, 

 black on the remainder; underside red, with thick and fairly 

 long white pubescence. Legs black, with yellow scaly hairs 

 on the femora and tibiie; pubescence and bristles black. 



\N ijigs grey, yellowish red at the extreme base and on the 

 fore border, not quite reaching the junction of the first longi- 

 tudinal vein in the border; the dark brown band extends in 

 an oblique direction to the posterior border, filling the first 

 third ot the first posterior cell, nearly the half of the discal 

 and fourth posterior cells, the base of the third posterior and 



