294 Miss G. Ricardo on the Pangonine 
1. Third joint of antennz simple, without a tooth 
or projecting angle. 
2s Black ispecies ann ein rickety ee rete 3. 
ViGlllonp OWGES goscostoacdosaossoesoaocad 6. 
By Lees EGS ooo dooncooosusg ED IeduoDpO0NG 4, 
Megs wyellowashyyes ser isi neeeers ele he etent re 5. 
4. Abdomen with three white bands. Legs black 
and white. Wings clear, darker on the fore- 
order, Ser sete muencge stone Coates ane esma ne renee Sylveirit, 2, Macq. 
Meesiblacks: NWanecyd are cn .erar meets er: preshiter, $, Rond. 
5. Abdomen with the incisions of the segments 
yellow. Wines hyaline. Antennee reddish. rufipes, 9, Macq. 
Abdomen with greyish- yellow pubescence. 
Wings hyaline. Antenne black.......... rufopilosus, 3, Bigot. 
6. Legsreddish yellow and black. Wings hyaline 
wither dark apircaluspobiensstc cis soley cir nubipennis, 9, Rond. 
None of the species are represented in the British Museum 
Collection. 
Silvius rufopilosus, 3, Bigot. 
The type, a male, and another male specimen are both 
from Chih. 
This is a very hairy species and is apparently nearly 
related to S. rufipes, Macq., but the antennz are entirely 
black, whereas Macquart describes his species as having the 
first two joints red. ‘The abdomen is black with the posterior 
borders of the segments narrowly fulvous; the yellowish- 
grey hairs are scattered over the dorsum, but are thickest at 
the sides. The legs are yellow, the coxze, the apices of the 
femora, tibieze, and tarsi black ; the fore femora are also black 
on their upperside ; all the femora have long white hairs on 
their underside, otherwise the pubescence of the legs is 
chiefly black and short. Wings clear, yellow on the fore 
border, veins yellow, with an appendix. 
Ethiopian Region. 
S. decorus, 2, Macq., Dipt. Exot. Suppl. 4, p. 38, pl. ii. fig. 10 (1850) 
(Mesomyta); Loew, Dipt. Stdafrik. p. 15 (1860).  [PS¢dvius 
decipiens, Loew, U. ¢. p. 25.|—Caftraria, 8. Africa. 
S. pertusus, 3, Loew, l. ce, p. 22 (1860).—Caffraria, S. Africa. 
*§, glandicolor, $, Loew, @. c. p. 28, pl. i. figs. 8-10,—Caffraria, 
S. Africa. 
S. cuneatus, 3 9, Loew, J. c.—Caffraria, 8S. Africa. 
S. confluens, 2, Loew, l.c. p. 24, pl. i. fig. 11 (not fig. 10 as printed 
in the original work).—Caffraria, S. Africa. 
S. decipiens, 2, Loew, J. c. pp. 15, 25. [PSzlvias decorus, Macq., J. c.}— 
Caffraria, 8. Africa. 
2S. ewstroides, 2, Karsch, Berlin. ent. Zeit. xxxi. p. 371, pl. iv. fig. 6 
(1887).—East Africa. 
S, innotatus, 2, Karsch, /. c. pl. iv. fig. 1.—East Africa. 
