1895.] L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. 445 
Sumatra which lies between Nias and Penang. I may remark also 
that I wrote blindly in Butt, of India, vol. iii, p. 21, when I sug¬ 
gested that the genus Miletus belongs to the Gerydus group; at the 
time of writing I had seen no specimen of true Miletus. Previous 
writers had used Miletus and Gerydus for symethus, Cramer, which led me 
astray. “ Miletus ” zymna would appear to be a true Gerydus , but as 
it was described from Ashanti, is not likely to be found also in 
Sumatra. The nearest Sumatran species to which it is superficially 
allied is G . gsetulus , de Niceville. 
291. Paragerydus horsfieldi, Moore. 
Grose Smith as horsfeldi [sic]. Hagen. Very common everywhere 
over the whole of our area. Very variable in size, some females being 
much smaller than the average of males. Also variable in the colora¬ 
tion of the underside, some Sumatran specimens approach very closely 
to P. taras , Doherty, from Burma, but none of them have “ the apex 
[of the fore wing so] widely tinged with rufous-brown ” as in that 
species. 
292. Paragerydus panormis, Elwes. 
Allotinus panormis , Elwes, Proo. Zool. Soo. Loud., 1892, p. 619, pi. xliii, figs. 8, 
male; 9, female. 
Rare, but occurs at Bekantschan in February, August, September 
and November, so probably generation follows generation at short 
intervals. May be recognised at once by the apex of both wings 
on the underside being greatly infuscated. I have placed it in the 
genus Paragerydus rather than Allotinus , as it has the upper discoidal 
nervule of the forewing originating well beyond instead of at the apex 
of the discoidal cell. 
293. Paragerydus p^etus, de Niceville. 
P. pxtus, de Niceville, Journ. Bomb. Nat. Hist. Soc., vol. ix, p. 269, n. 7, pi. O, 
fig. 12, male (1895). 
A very distinct species from Bekantschan and at higher eleva¬ 
tions. Flies in February, March, and again in November. 
294. Paragerydus portunus, de Niceville. 
P. portunus , de Niceville, Journ, A. S. B., vol. lxiii, pt. 2, p. 27, pi. v, fig. 14, 
male (1894). 
The very dark colour of the underside will suffice to distinguish 
this species ; Sumatran specimens are even darker than typical ones 
from Java, the ground-colour being pale ferruginous instead of pale 
ochreous, with dark ferruginous mottlings. Is commoner than the 
