On Sumatran Heterocerous Lepidoptera. 379 
broad lingual ribbon, extremely brittle, so that I was unable 
to get it out complete; it consisted of rows of similar and 
equal-sized teeth ; however, I was fortunate enough to secure 
the central portion. A very minute central bicuspid tooth, suc- 
ceeded by much-curved bicuspid laterals, the first on either 
side of the central being slightly shorter than the second ; 
thence and outwards there is no change in form, except that 
those further removed nearer the margin show the pectiniform 
edges so characteristic of the odontophore in D. levicula. The 
jaw is straight, with a slightly convex central margin, by no 
means of solid form, and longitudinally striate. 
XXXIX.— Descriptions of some new Species of Heterocerous 
Lepidoptera from Sumatra. By Artuur G. BuTLer, 
IFES been aC. 
THE species now described were chiefly collected by Mr. 
Charles Curtis, and were added to the Museum series during 
the present year; they are referable to the Bombycina and 
Geometrina. 
Lithosiide. 
1. Miltochrista Curtisit, sp. n. 
Allied to M. rubricosiata of Herrich-Schaffer, but consi- 
derably larger and somewhat differently coloured: primaries 
above greyish brown, with bright yellow markings, upon 
which the internervular folds are represented by thick 
crimson lines; these markings are as follows—a basicostal 
patch, a triangular costal patch immediately beyond it, an 
irregular transverse band before the middle, a tapering costal 
streak from just beyond this band to the apex, and a rather 
‘broad irregular external border ; there are also a short narrow 
streak at base of inner margin, a spot just below the cell and 
before the transverse band, and two narrow longitudinal lines on 
the radial interspaces, all crimson; fringe yellow: secondaries 
rose-pink, with pale yellow fringe: thorax greyish brown, 
spotted with yellow and red; abdomen rose-pink. Primaries 
below rose-red, slightly purplish below the upper radial vein, 
and inclining to crimson above it (thus indicating the broad 
brown area of the upper surface) ; costa and discoidal cell 
clouded with orange-yellow ; veins and external border yel- 
low: secondaries pale rose-pink: body below pale yellow; 
hind legs tinted with rose-colour. Hxpanse of wings 47 
millimetres. 
One female. 
