LATHYROPHTHALMUS.—-ERISTALODES. S7 
on the hind border of second, third, and fourth segments with a 
small dullish black band; genitalia shining black, small; hairs 
pale yellowish, rather long, dark on the black binds; venter 
vellow, black on the extreme border of the fourth segment. 
Femora black, the four anterior ones yellow at base and at end, 
the two posterior only at the base but broadly ; tibiz black, with 
whitish base, which is broader on the four CER Ee tarsi yellow, 
last two joints of the hind pair dark brown; hair whitish on the 
pale-coloured and black on the dark portions. Wings yellowish 
hyaline, witha double stigma and typical yellowish veins; marginal 
cell short-stalked ; discal cell with a very short appendix. 
Type 3, a single specimen from 8. Nigeria, Lagos (Dr. A. 
Connal). 
87. Lathyrophthalmus dulcis, Kursch (1887). 
Very near frizonatus, but distinguished by the entirely black 
hind femora, by the black ends of all the tarsi, and by the broad 
black band on the anterior margin of the second abdominal 
segment. 
‘Originally described from Pungo-Andongo. <A single female 
from West Africa, Obuasi, Ashanti; “ caught in swamp,” 27. v 
1907 (Dr. W. ML. Graham). 
88. Lathyrophthalmus dissimilis, Adams (1905). 
Very like the preceding, but differing in the eyes having a larger 
number of confluent spots, and in the sides of the face and the 
hind part of the dorsum being shining. 
The eyes of the male are united for a short distance, the length 
of which is shorter than that of the vertical triangle ; owing to the 
Jarge number and partly confluent character of the spots on the 
eyes, and to the rather prominent face, this species forms a con- 
necting-link with the melanops-group. ‘The pollen on the sides of 
the face 1s very characteristic, since it allows small spots of the 
ground-colour to be seen. 
A single male specimen from Salisbury, S. Rhodesia (G. A. K. 
Marshall ); this is the type locality, but the present specimen 
measures only 7 mm. in length, while Adams gave 10 mm. 
Genus 15. ERISTALODES, J/:/ (1897). 
This genus seems to be characteristically Ethiopian, and has 
few, if any, representatives in the Oriental Region, from which J 
do not know a single species with certainty (¥ Aobusi and multi- 
farius). 
The species before me may be distinguished as follows :— 
1 (8) Seutellum yellow, transparent, or only 
blackened’ towards the base, clothed 
entirely or at least on the hind border 
