437 
1895.] L. de Niceville & Dr. L. Martin— Butterflies of Sumatra. 
260. Charaxes echo, Butler. 
Originally described from Singapore, recorded from Borneo by 
Dnice. It is one of the rarest insects in our area, as two specimens 
only have been captured, both in high forest near Selesseh. It is 
smaller and darker than the allied G. fabius, Fabricius, of India and 
Burma. 
261. Charaxes (Haridra ) borneensis, Butler. 
Grose Smith. Distant. Like G . delphis , Doubleday, and G.jalysus , 
Felder, except a few specimens from the Battak mountains, has only 
been captured in the forests west and north of Selesseh, by the Gayoes 
while collecting gutta perch a. Dr. Martin possesses one specimen 
taken in Asahan in 1891, We have not seen its female. 
262. Charaxes ( Haridra ) durnfordi, Distant. 
This species was originally described from Sungei Ujong in the 
Malay Peninsula from a single male. An allied species is C. nicholii , 
Grose Smith, described from Burma, and figured in Rhopalocera 
Exotica, vol. i, pi. Charaxes ii, figs. 1, 2, male (1887). I possess a 
single specimen of this very rare species caught by Colonel C. T. 
Bingham in October, in the bed of the Kaukareit stream at the foot 
of the Daunat Range, Tenasserim, which differs from the figure of 
G. nicholii in its larger size, the ocelli on the upperside of the hindwing 
larger, within which from the costal nervure to the first median 
nervule is a waved black line, anteriorly prominent, posteriorly be¬ 
coming obsolete. G. durnfordi is very rare in Sumatra, rarer even 
than C. kadenii , Felder, as Dr. Martin obtained only five specimens. 
Occurs in heavy forest on the lower ranges and outer spurs of the 
Battak mountains, where Dr. Martin in 1888 captured his first male 
specimen at Roemah Kenangkong, now in the royal collection at 
Munich. Dr. Hagen took a male in 1891, at Bandar Quala in Serdang. 
In 1892 Dr. Martin received a female from a Battak collector, which is 
larger and duller coloured than the male, the whitish-violet markings 
on the upperside of the hindwing of greater extent, and the tails 
longer. 
263. Charaxes ( Haridra ) harpax, Felder. 
Hagen. Snellen as polyxena. Moore. It was originally described 
without habitat; and has been recorded from Lower Burma, the 
Malay Peninsula, Sumatra, and Borneo. G. polyxena , Cramer, was 
described from a male from China, and is the oldest name of all the 
tawny group of Charaxes , G. harpax is found in Sumatra from the 
