62 SYRPTIID ©. 
12 (11) Face and frons yellow ; scutellum black- 
ish; squ: amule bl: rae with a white 
fringe ; hind femora at the base with a 
conspicuous conical tubercle ........ apophysata, sp. 0. 
54. Protylocera dibaphus, Wa/her (1849). 
A handsome species, easily recognisable on account of its red 
face, antenne, and leeg, and the broadly interrupted velvety-black 
band on the thoracic suture. 
The present species was described as Mristalomyia rufonasuta 
by Bigot in 1891, and more recently as Stenaspis gypseisquama 
by Dr. Speiser; the identity with Walker’s ‘ylota dibaphus is 
established after comparison by Mr. Austen with the type in the 
British Museum. 
This species seems to have a wide range in Tropical Africa, from 
the East to the West Coast. In the prese ont collection there are 
three females from Obuasi, Ashanti, iv.—vil. 1907, “sucking a cut 
plantain stem” (Dr. W. MW. Graham); a male from Uganda 
Protectorate, between Jinja and Busia or Mbwago’s, E. Busoga, 
3,800—4,000 ft., 18. vii.—1. viii. 1911 (S. A. Neave). 
55. Protylocera elliotii, dusten (1909). 
Very distinct, owing to the densely yellow pollinose dorsum of 
the thorax and seutellum, and the purplish- -brown wings. 
Originally described from Ruwenzori Mountains, this species is 
also w idely spread in Tropical Africa. According to ss deseription, 
AXylota purpurea, Walker, seems to be very ie this insect. 
A female from British East Africa, Ilala, Marama’s Dist., 
14 m. E. of Mumia’s, 4,500 ft., 18-21. vi. 1911 (S. A. Weave), and 
a male from Yala River, southern edge of Kakumega Forest, 
4. 800—5,300' ft. 21-28) vy. LON, ts. 22. Neave). 
56. Protylocera esacus, Walker (1849). 
Characterised by the yellowish scutellum and hind portion of the 
thorax, the black abdomen, and by the wings being yellowish 
basally and having a broad median brown spot. 
This species is very common in West Africa, but in the collection 
there is only a single female specimen from Obuasi, Ashanti, 8. Vill. 
1906, “ caught on leaf cx coitd” (Dr. W. ML. Graham). 
57. Protylocera xanthorrhea, Bezz 
@. Length of body 13 mm. 
Near the preceding, but distinguished by the entirely yellow 
abdomen and different pattern of the wings. 
Head black, covered with dense grey pollen, shining black on 
the ocelli; lunula reddish ; facial tubercle broad and round, grey 
