622 Prof. Mario Bezzi’s Report on a Collection of 
very conspicuous, ff. plumula has a white fringe, as in 
the following species. 
A single specimen from North Nyasa, Kaporo, October 
22, 1909 (Dr. J. B. Davey). 
27. Anthrax homogeneus, sp. nov. (Plate L, fig. 3.) 
9. Length 7 mm. 
A black species with a wing pattern very like that of Hemipenthes 
morio, with the addition of a small dark cloud at the base of the 
cubital fork. Head black and clothed with black hairs, only on the 
anterior portion of the frons are some white scaly hairs. Thorax 
with black hairs and sparse whitish pubescence, towards the sides 
the hairs are whitish grey ; pleurae grey, with short dark hairs. 
Halteres white, with a dark stalk. Squamulae of a quite white 
colour and fringed with white hairs. Scutellum shining black, with 
four pairs of black bristles, those of the middle crossed. Abdomen 
black and with black hairs, the first segment with white hairs on 
the sides ; hind margins of the segments with a thin border of silvery 
scales, the apical segments being almost wholly silvery. Legs black, 
the anterior tibiae dark yellowish. Wings black and hyaline ; the 
black begins at the end of the first vein, and runs obliquely to the 
apex of the anal cell, which is hyaline, going over the small cross- 
vein and the base of the third posterior cell. The cloud at the base 
of the cubital fork is very small. The prediscoidal spot is dark, not 
hyaline. There are two recurrent stumps ; the upper branch of the 
cubital fork is gently curved at the base ; anal cell open. 
Type §, from North Nyasa, Remero stream, November 
24, 1909 (Dr. J. b. Davey); a single specimen. 
28. Anthrax spec. indet. 
A single damaged specimen of this interesting species, 
from West Nyasa, Momberas District, November 1909 
(Dr. H.S. Stannus). 
In size and appearance very like A. diffusus, and with a 
sinilar wing-pattern, but the lower veins of the discal cell 
are all infuscated. The stumps of the recurrent veinlets 
are wholly wanting ; the upper branch of the cubital fork 
is simply S-shaped ; the anal cell is closed. 
29. Anthrax camptocladius, sp. nov. (Plate L, fig. 4.) 
dg. Length (of 5 specimens), 7-9 mm. 
Closely allied to A. homogeneus, but easily distinguished by the 
very different shape of the upper branch of the cubital fork. 
Head with black hairs, and very sparse pale pubescence on the 
fore portion of the frons. Thorax and abdomen as A. homogeneus. 
