NOTES ON THE ETHIOPIAN FRUIT-FLIES — II. 33 



3. Ensina anceps, Loew, Berl. Ent. Zeits., v, 1861, p. 283, pi. ii, fig. 17. 



Very distinct from any other species on account of the well differentiated dark 

 bands of the wings. 



Originally described from Caffraria, I have received from Grahamstown several 

 specimens, which differ in some points from the Loew's description. The longer 

 vertical bristles are black ; the bristles of the occipital row are black, but those of 

 the upper border are whitish ; on the wings there is a dark band going from the 

 middle of the 2nd costal cell to the 4th longitudinal vein, of which there is no trace 

 in Loew's figure ; moreover the 3 dark bands are broader and the apical one is 

 prolonged over the 4th longitudinal vein. 



4. Ensina dubia, Walker (1853), Loew, Berl. Ent. Zeits., v, 1861, p. 288, pi. ii, 



fig. 20. 



Very distinct on account of its rich wing-pattern, and thus presumably belonging 

 to some other genus. 

 Described from the Cape and Caffraria, and not found subsequently. 



5. Ensina ignobilis, Loew, Berl. Ent. Zeits., v, 1861, p. 293, pi. ii, fig. 23. 

 Allied to sororcula, but with the head not depressed. 



Originally described from the Cape, I have seen a female specimen from 

 Grahamstown, October 1903 (C. W. Molly), which shows a rounded pale yellowish 

 spot in the stigma. Characteristic for the present species is the small cross-vein 

 broadly margined with fuscous. Another female specimen from Grahamstown, 

 April 1903 (Miss M. Daly and Miss M. Sole), has the stigma entirely black and 

 thus seems to belong to a different species, with less numerous hyaline spots in the 

 middle of the first posteriorcell. 



6. Ensina siphonina, sp. nov. 



Distinct from all the other species on account of its yellow stigma and of its very 

 faintly marked reticulation of the wings. It is placed in the present genus only 

 on account of its very long and bicubitate proboscis, which is about as long as the 

 entire body. 



$. Length of the body, 4 mm. ; of the ovipositor, 0"7 mm. ; of the wing, 4 mm. 

 Head as broad as high, not depressed, with the occiput swollen beneath and with 

 the lower border rather short. Occiput black, clothed with dense grey dust, but 

 pale yellowish and whitish-dusted at the eye borders and below ; frons flattened, 

 not prominent, broader than the eye, orange-yellow, with a narrow whitish border 

 near the eyes ; ocellar triangle greyish ; face yellowish ; cheeks and jowls narrow, 

 reddish, white-dusted ; mouth-border rather prominent. Antennae entirely reddish, 

 as long as the face ; third joint acute at its upper end ; arista bare. Palpi reddish 

 yellow, with some short black bristles at end ; proboscis yellow, very long, its last 

 portion being longer than the head. Of the cephalic bristles, the pvt., the outer vt. 

 and the first of the upper or. are whitish, like the short bristles of the occipital row ; 

 all the other bristles are black ; only 2 lower or. Thorax and scutellum black, but 

 densely grey-dusted and clothed with short yellow pubescence ; on the back there 

 are 2 brown but not much marked longitudinal stripes along the dorso-central lines ; 

 (C455) o 



