418 L. de Niceville & Dr. L. Martin — Butterflies of Sumatra. [No. 3, 
as A. larymna , Doubleday and Hewitson, but is very rare. In con¬ 
sequence of the beautiful coloration and markings of the underside 
it is a conspicuous insect when at rest with folded wings. 
195. Athyma kanwa, Moore. 
Snellen. Very rare, more so than the two foregoing species. 
Found from Bekantschan to Soengei Batoe. Dr. Martin has never seen 
it on the wing. 
196. Athyma pravara, Moore. 
Butler. Distant. A commoner species than those mentioned 
above. Occurs in forests in the plains and as high as Namoe Oekor. 
It is the smallest of our Athymas , and is easy to recognise by the club¬ 
like streak with rounded end in the discoidal cell of the fore wing. 
197. Athyma reta, Moore. 
Moore as reta and Jcresna. Grose Smith as reta and Jcresna. 
Hagen as reta , var. ? Kirby. Distant as Jcresna. Butler as Jcresna. 
Moore described both A. reta and A. Jcresna from Sumatra on the same 
page and figured both. He figures reta with all the spots and bands 
of the upperside pure white ; A. Jcresna with all the markings pale blue 
except the submarginal band of the hindwing which is white. The 
markings are precisely similar except that in A. reta they are somewhat 
larger. I have no hesitation whatever in considering these two suppos¬ 
ed distinct species to be one and the same, the differential characters 
given to distinguish them being in my opinion quite non-specific, being 
based on characters which are obviously variable. The blue coloration 
of A. Jcresna is almost certainly incorrect. In one place Mr. Moore 
speaks of the markings as “ bluish-white,” and in another as “ white.” 
It is a common species in Borneo, and occurs also in Lower Burma and 
the Malay Peninsula. Mr. Moore has suggested that A. subrata, Moore, 
may be a dimorphic form of the female of A. Jcresna — A. reta , the ordi¬ 
nary female of which lias reddish markings. I possess only males of 
A. Jcresna, so have no idea what its female is like. A. subrata is quite 
distinct from A. Jcresna , see No. 199, that species being a local race of 
A. nefte , Cramer^ A. subrata cannot therefore be the female of A. Jcresna. 
Together with A. perius , Linnaeus, and A. subrata, Moore, this is the 
commonest species of the plains, and is met with on nearly every road 
leading through high forest. The pupa is very richly decorated with 
gold as usual in the genus. 
198. Athyma abiasa, Moore. 
Grose Smith. This rare and beautiful species occurs at Soengei 
