1895.] L. de Niceville & Dr. L. Martin — Butter/lies of Sumatra. 437 



260. Charaxes echo, Butler, 



Originally described from Singapore, recorded from Borneo by 

 Drace. 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 C. 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 

 beeu captured in the forests west and north of Selesseh, by the Gayoes 

 while collecting gutta percha. 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 G. nicholii, 

 Grose Smith, described from Burma, and figured in Rhopalocera 

 Exotica, vol. i, pi. Gharaxes 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. nioholii in its larger size, the ocelli on the upperside of the hindwing 

 larger, within which from the costal nervui'e to the first median 

 nervule is a waved black Hue, anteriorly prominent, posteriorly be- 

 coming obsolete. G. durnfordi is very rare in Sumatra, rarer even 

 than G. 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 J 891, 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. C. polyxena, Cramer, was 

 described from a male from China, and is the oldest name of all the 

 tawny group of Gharaxes. G. harpax is found in Sumatra from the 



