28 W. Doherty — A List of the Butterflies of Engano. [No. 1, 
haps the commonest butterfly of the Nicobars. Herr Kheil mentions only 
C. strabo and cneius from Nias, and also C. kandarpa ( = strabo). 
35. Everes parehasius, Fab., (stated by Mr. de Niceville to be the 
same as the European argiades). Only one or two seen. This is Herr 
Kheil’s Plebeius polysperehinus. 
36. Lampides bociius, Cramer, ( Jamides bochus'). My specimens 
were identical with Indian ones. The species seems to vary but little 
throughout its range. The Nicobar form seems perfectly distinct, and 
should stand as L. nicobaricus, Wood-Mason and de Niceville. Herr 
Kheil’s Plebeius siraha, from Nias, is apparently the same as L, bochus, 
but why he should compare it with Plebeius balliston ( Lycoencesthes 
bengalensis ) I do not know. 
37. Lampides subditits, var. telanjang. Female. Above, with 
the inner border of the black outer area excised by an entering angle. 
Hindwing with the outer bluish rings bounded inwardly by a broad 
dark band which is suffused anally with reddish. Below, the submar- 
ginal pair of fascia; diffused and lunular. Hindwing with the orange 
forming a large area discally, extending above the radial vein and to the 
submedian, only three of the black spots complete, the inner zigzag line 
obsolescent. 
Only a single female taken, but subditus is so different from other 
species of Lampides, and this form is so distinct from subditus, that I 
have thought best to name it. 
38. Lampides elpidion, n. sp. A local form of Lampides elpis, 
the dark white-bordered submarginal spots of the hindwing separated 
from the basal blue by a broad unbroken dark wavy band : forewing 
with the blue pale and milky, the outer dark margin rather broad, the 
veins edged slenderly with black at the apex. Below the ground-colour 
is uniform pale reddish-brown, as in the dry season form of elpis. Pre- 
hensors as in elpis. I have compared this butterfly with a long series 
of Indian and with four Javanese males, and it seems a good local race, 
easily distinguished. It is very much larger than Herr Kheil’s Plebeius 
talinga, which has the black border of the forewing much broader, and 
the inner band of the hindwing wanting. 
39. Lampides celasno, Cramer. I identify this species with some 
doubt ; a small pale-blue form, quite common along the shore. Another 
Lampides, which I have not been able to place, is pale grey above, with 
the border rather narrow on the forewing and reduced to a thread on 
the hindwing. 
