188 SPOLIA ZEYLANICA. 
Chaoborus, and even those authors who regard Corethra and its 
allies as constituting a separate family are forced to ignore the fact 
that Pelorempis has scales on its cross-veins, although they assign 
this genus also to the Corethride. Aamcia is eccentric enough to 
go further than Pelorempis in having at once a short proboscis, 
scales on the longitudinal veins (but not on the head or body), and a 
larva with several peculiar characters. I am not prepared to say 
whether those who have made a special study of the group would 
assign it to the Culicide (sensu suo) or the “ Corethride.” It 
differs from both groups in certain venation-characters, more 
especially as regards the position of the tip of the first longitudinal 
vein ; but the larva on the whole resembles that of Corethra, and 
if the sub-family Corethrine is to be maintained, I would assign 
Ramceia to it. 
I.—DESCRIPTION OF THE ADULT FLy. 
Ramceia,* gen. nov. 
The venation is culiciform in general disposition, but is charac- 
terized by the fact that the first longitudinal vein, running almost 
parallel to the subcostal, reaches the costal border at some distance 
from the distal margin of the wing. The basal and marginal cells 
are elongate and narrow, and the cross-veins are situated near the 
centre of the wing. 

5! é B 
Venation of the two Corethrine as yet known to occur in Ceylon :—A, 
Ramcia inepia, sp. nov. B, Chaoborus asiaticus (Giles), a species which occurs 
at Peradeniya. 
c = costal border ; s. c. = subcosta; 1 — first longitudinal ; 2 — anterior 
branch of second longitudinal; 2’ = posterior branch of the same vein ; 
3 = third longitudinal or median vein; 4= anterior branch of fourth 
longitudinal ; 4’ — posterior branch of the same vein ; 5 = anterior branch of 
a ee lengitudsaal ; 5’ = posterior branch of the same vein ; 6 = sixth longitu- 
inal. 

* Named, by special request of Major MacDougall, after the Royal Army 
Medical Corps. 
