1883.1 • 5o' 



twice as wide as at the apes, only a little raised, the sides almost straight, 

 gradually diverging from the collar to the posterior angles ; the posterior disc 

 slightly rugose. Antennae with the first joint almost one-third shorter than the 

 posterior margin of the vertex, the third joint only one-fifth to one-sixth shorter 

 than the second, the fourth two-fifths to three-sevenths shorter than the third. 

 Male and female dimorphous 6. D. stachydis, n. sp. 



12 (1). Antennae and legs short, smooth, without hairs, pale, only the first joint of 

 antennae in the middle largely red or piceous, or with two piceous rings, the 

 second only at the base piceous or entirely pale. Antennae with the first joint 

 only half as long as the head seen from above, the second as long as pronotum 

 and gently thickened towards the apex, the third joint at least one-fourth 

 shorter than the second, the fourth only one-fourth shorter than the third. 

 Head short. Posterior tibiae only about two and a half to two and two-thirds 

 times as long as the width of thehead (with the eyes), sparingly provided with 

 short spinulse. The body shorter and less elongate than in the preceding species. 

 Male and female dimorphous 7. D. pallidicornis, Fieb. 



Helsingfors : June, 1883. 



DESCEIPTIONS OF SOME NEW SPECIES OF LEPIDOPTERA, 



CHIEFLY FROM THE ISLAND OF NIAS. 



BY ARTHUR G. BUTLER, F.L.S., F.Z.S., &c. 



The species here described were almost entirely selected from 

 two small collections made in Nias, a small island to the west of 

 Sumatra. 



RHOPALOCEEA. 

 1. Elyvinias dolorosa, sp. n. 



Dai'k smoky-brown, the primaries almost black, but the costa, apex, and external 

 border pale, greyish-olivaceous ; secondaries with the external border more broadly 

 pale, with six ill-defined ocelli, the fourth of which is largest and most distinct, the 

 last two close together ; external margin blackish, fringe white, spotted with blackish 

 at the extremities of the veins and internervular folds : basal three-fourths of the 

 wings, below, dark greyish-olivaceous coarsely and densely marbled with dark red 

 streaks ; external fourth paler, that of the primaries whitish towards the costa, 

 irregularly marbled with red stria;, internal area greyish ; external fourth of 

 secondaries stone-yellowish in tint, striated with blackish, and crossed by a cui'ved 

 series of six conspicuous black ocelli with white pupils, and a pale blue patch from 

 the pupil to the posterior edge, the first and fourth ocelli large, the sixth small, and 

 the remainder of medium size, a conspicuous white sub-costal spot with black dif- 

 fused edge below the centre of the costal margin : body brown, anus testaceous : 

 expanse of wings, 70 mm. 



Island of Nias. 



Nearly allied to E. panthera, of Java, but larger, blacker, with 

 the secondaries more strongly dentated, with a decided tail ; the streak- 

 ing below much coarser and less broken up, and the ocelli of the 

 secondaries of four times the size, but the white spot smaller. 



