430 L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. [No. 3, 



Java " In not having a continuous fuscous [costal] margin to the fore- 

 wing on the upperside, and in the greater amount of ochraceous colora- 

 tion near the anal angle of the hind wing on the upperside." {Distant). 

 Found in Sumatra from near the sea to Soengei Batoe on forest roads, 

 where it settles with wide-spread wings on moist places and by the side 

 of small pools ; if pursued it settles on the underside of leaves by the 

 roadside. On the wing when flying rapidly along a forest road in search 

 of moisture it may easily be taken for a pierine butterfly. All the 

 butterflies of this genus in India are well named " The Map " from 

 their characteristic markings and coloration. 



242. Ctrestis irm^:, Forbes. 



C. irmse, Forbes, A Naturalist's Wanderings, p. 274 (1885). 



C. msenalis, var. sumatrensis, Staudinger, Ex. Schmett., p. 133 (1886). 



Forbes. Staudinger as msenalis, var. sumatrensis. Semper as 

 'msenalis. I have redescribed tins species in Journ. Bomb. Nat. Hist. 

 Soc, vol. vi, p. 358, n. 11 (1891). It occurs in the hills of Perak 

 in the Malay Peninsula at 3-4,000 feet elevation. C. msenalis, Erichson, 

 is a distinct species, and is found in the Philippine Isles. From the 

 point where G. nivalis, Felder, no longer occurs, at Soengei Batoe 

 and on the higher mountains and the Central Plateau, this beautiful 

 and very distinct species is found commonly throughout the year. It is 

 somewhat smaller than C. nivalis. The Battak collectors report that 

 it comes down to the small hill streams in crowds with numerous 

 Pierinse to suck up the moisture. 



243. Cvrestis periander, Fabricius. 



Grose Smith. Staudinger. This beautiful species occurs only 

 on the western boundary of our area at higher elevations. Heir M. Ude, 

 the Europeau collector of Dr. II. Dohrn, took some thirty specimens 

 near Bohorok in May, 1894. Dr. Martin obtained his first specimens 

 from Kepras in January, 1895, and also a single example, perhaps a 

 si raggler to the south-east, from the Karo mountains in December, 1894. 

 Dr. Martin has caught it himself on the Penang Hill, or "The Crag." 



241. Ctrestis theres.e, de Niceville. 



C. there8ae, de Niceville, Journ. A. S. B., vol. lxiii, pt. 2, p. 18, n. 14, pi. v, 

 fig. 8, male (1894). 



Dr. Martin obtained a single specimen in May, 1893, from the 

 f orest near Selesseh, caught by a very clever and intelligent Chinese 

 collector. Mr. de Niceville recognised it at once as a species new to 

 science, and at Dr. Martin's request named it in honour of H. R. H. 

 Priucess Therese of Bavaria, who is well-known by her valuable 



