384 L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. [No. 3, 
female in the British Museum ; these are all the known specimens. Its 
precise habitat is unknown. 
In Sumatra the species of Coelites are inhabitants of dense virgin 
forests, are very shy, but settle often, and can only be captured by ap¬ 
proaching them most gently and carefully. They always rest with 
folded wings, and are not easily seen on the dark ground covered with 
leaves of all shades in the dim recesses of the forest. Their shyness and 
the difficulty of discovering and capturing them may be the real reason 
why they are so seldom met with in collections. Dr. Martin is of opinion 
that Neorina lowii , Doubleday and Hewitson, is a gigantic Melanitis , so 
he would call the species of Coelites the Melanitis of the forest. Being 
true forest insects they exhibit a beautiful glossy blue colour (confer 
Mycalesis orseis , Hewitson, ante No. 50). 
72. Lethe ( Nemetis) minerva, Fabricius. 
Hewitson as arcadia. Grose Smith as arcadia. Snellen as arcadia . 
Kirby. Apparently very rare in North-Eastern Sumatra, Dr. Martin 
having obtained one specimen only from the mountains. It is far less 
rare in Java. 
73. Lethe (Delis) mekara, Moore. 
Hewitson. Grose Smith. Hagen. Semper. Snellen. Common 
everywhere in the plains, in the mountains, and even on the Central 
Plateau ; the specimens from the mountains have the yellowish-red 
colour on the upperside of the hindwing more extensive than those from 
the plains. The insect is always met with near bamboos, on which the 
larva feeds, and is even very common in Bindjei. 
74. Lethe ( Delis ) chandica, Moore. 
Hagen. Very rare, in the higher mountains and on the Central 
Plateau. Dr. Martin has not obtained more than ten or twelve speci¬ 
mens during his long sojourn in the island. 
75. Lethe (Delis) darena, Felder. 
L. darena, de Niceville, Journ. Bomb. Nat. Hist. Soc., vol. viii, p. 40, n. 3, pi. K, 
fig. 7, male (1893). 
Very rare in the Batfak mountains, and not found below 3,000 feet 
elevation. Dr. Martin wishes to add:—“I cannot lose this opportunity 
to present my compliments to my friend Mr. Lionel de Niceville for his 
extraordinary entomological knowledge and keen insight in having seen 
only the drawing of the very different female of Lethe darena in Dr. 
Felder’s Reise Novara, Lepidoptera, and from that being able to deter- 
