1895.] L. de Niceville & Dr. L. Martin— Butterflies of Sumatra. 541 
Doherty, from Margherita and Sadiya in Upper Assam, and P. fruhstor* 
feri , Snellen, from Java. P. caltineura appears to be a very variable 
species not only in colouring but also in size, as our specimens 
measure in expanse of wings from 1*15 to 1*75 inches. In Sumatra it 
is common in the forests of the outer hills south of Namoe Oekor 
throughout the year. It settles with folded wings. It requires a skilled 
eye to distinguish it when at rest from common species of Padraona or 
Telicota. 
685. Plastingia Helena, Butler. 
Hagen. Is much rarer than the last-named species, but occurs 
throughout the year from Selesseh to Bekantschan. 
686 . Plastingia vermiculata, Hewitson. 
P. vermiculata , de Niceville, Journ. A. S. B., vol. Ixiii, pt. 2, p. 56, n. 47, pi. v, 
fig. 15, male (1894). 
Hewitson. Grose Smith. Originally described from Sumatra; 
occurs in the Battak mountains near Bekantschan in July rarely, only 
two or three specimens obtained. 
687. Plastingia tessellata, Hewitson. 
Originally described from Macassar in Celebes. The markings of 
the underside are stated to be “yellow.” The “ Hesperia ” eulepis of 
Felder, described also from Celebes, is said to have the markings on 
the underside “ ocliraceo-sulphureis,” and is almost certainly a synonym. 
The next-named species is given by Captain Watson as a synonym also, 
but it has the markings of the underside “ pure silvery white.” I be¬ 
lieve it to be distinct. P. tessellata is very rare, two or three specimens 
only have been taken near Bekantschan in July. 
688. Plastingia naga, de Niceville. 
Hesperia ? naga , de Niceville, Journ. A. S. B., vol. lii, pt. 2, p. 89, n. 37, pi. x, 
fig. 2, female (1883). 
Occurs at Sibsagar in Upper Assam, Singapore, N.-E. Sumatra, and 
Java. Not less rare than the two foregoing species, four or five speci¬ 
mens only obtained in March, June and December. Dr. Martin caught 
it himself commonly in Singapore in February, 1895. 
689. Lotongcs calathus, Hewitson. 
Hewitson. Hagen. Grose Smith. Distant. Snellen. Kirby. 
O 
Originally described from Sumatra. I possess specimens from the 
