﻿NEW SPECIES OF HBTEROCERA FROM FORMOSA. 59 



Comes near Z. inaccepta, Prout, but the termen of all wings 

 crenulate, deeply on the hind wings. 



Arichanna Jiavitincta, sp. n. 



^ . Head pale ochreous brown, antennae bipectinated ; thorax 

 black brown, mixed with pale ochreous brown ; abdomen pale 

 ochreous brown, barred with black brown. Fore wings yellowish 

 white, dotted and clouded with blackish, the clouding heavy and 

 more or less confluent on basal half ; costa and termen marked with 

 yellow ; two white spots, separated by a vein only, before the apex ; 

 an irregular edged blackish band from the lower spot to dorsum, the 

 band traversed by an irregular brown line. Hind wings creamy 

 white inclining to yellowish, densely dotted with blackish ; discoidal 

 spot blackish, large, its lower edge connected with a blackish band 

 running to dorsum ; subterminal line blackish ; irregular and in- 

 terrupted. Fringes of all wings blackish marked with yellow. 

 Under side very similar to the upper side. 

 Expanse, 50 millim. 



Collection number, 1818. 



A male specimen from Kantaizan, May 7th, 1909. 



Arichanna ochrivena, sp. n. 



S . Antennae bipectinated ; head and thorax blackish brown, the 

 latter ochreous mixed ; abdomen paler brown, suffused with fuscous 

 on the back. Fore wings whitish, tinged with ochreous on the disc ; 

 costa and veins ochreous ; subbasal, double antemedial, and double 

 postmedial lines represented by black spots, costa striated with black, 

 discoidal mark black, large ; subterminal line represented by round 

 black spots ; a series of quadrate black spots on the termen, some 

 towards costa united with subterminal series ; fringes ochreous 

 marked with black. Hind wings ochreous, suffused with blackish 

 towards the base ; discoidal spot black, almost round ; medial line 

 represented by five black spots, first on costa, second in hne with 

 discoidal ; postmedial line represented by five black spots, the first 

 between veins 4-6 and in line with the discoidal, the second minute, 

 and the fourth and fifth hardly separate ; seven black spots on the 

 termen, the fourth, fifth and sixth larger than the other four. 

 Under side ochreous, black spots as on the upper side. 



Expanse, 56 milhm. 



Collection number, 1552. 



A male specimen from Arizan, August 18th, 1908. 



Closely allied to A. hamiltonia, Swinhoe. 



Perizoma rantaizanensis, sp. n. 

 ? . Head white, mixed with black ; thorax black, mixed with 

 white, collar brown tinged ; abdomen dark grey, brown marked. 

 Fore ^vings white, flecked with grey brown ; basal patch black, 

 limited by an almost straight white line ; antemedial line black, 

 slender, excurved to median nervure, thence almost straight to 

 dorsum ; space between subbasal and antemedial line brownish ; 



