84 Mr. A. G. Butler on Le-pidoi^tera oj the Amazons. 



164. Oclia pallida, n. sp. 



Primaries above pale gravel-red ; a pinky-wliitish sinu- 

 ated transverse discal line, interrupted beyond the cell by 

 a large (internally black-edged) ferruginous spot ; fringe 

 yellowish, spotted with ferruginous ; secondaries stra- 

 mineous ; thorax reddish ; abdomen pale stramineous, 

 with dark brownish anus; under surface uniform pale 

 stramineous : expanse 1 inch. 



Ayrao, Rio Negro, 3rd July, 1874. 



Genus Artace, Walker. 



165. Artace albicans. 



Artace albicans, Walker, Lep. Het. vi. p. 1492, 

 n. 2(1855). 



Artace punctivena, Walker, 1. c. n. 3 (1855). 

 Rio Taruma, Rio Negro, 31st July, 1874. 



166. Artace rivulosa, n. sp. 



Wings semihyaline-white, veins spotted with black ; 

 primaries with a black basal spot, then two angular grey- 

 ish-brown bands; next a broad central belt (interrupted at 

 discoidal area, and only filled in between the median 

 veins), then three pale brown parallel wavy discal stripes ; 

 and lastly, a pale brown external border ; a marginal 

 series of dark brown spots to all the wings ; head white, 

 brown behind ; antennas black ; collar sordid Avhite, 

 broAvnish ; prothorax white ; tegulte Avhite ; meso- and 

 metathorax and abdomen brownish ; under surface white, 

 veins of the wings black towards the base, a marginal 

 series of pale brown spots: expanse 1 inch 3 lines. 



San Antonio, Rio Negro, 5th July, 1874. 



This species is allied to A. iridescens {Gastropaclia 

 iridescens of Walker). 



Tricypka, Moeschler, is closely allied to Manoleneura 

 of this paper (p. b^). 



EXPLANATION OF PLATE III. 



Fig. 1. Mitra(ltcmonvelutinum,p. 60. 

 „ 2. Agylla mira, p. 58. 

 „ 3. Halesidota £cnone, p. 50. 

 „ 4. Anthocroca cuucifera, p. 79. 

 „ 5. Anthocroca muscosa, p. 79. 



Fig. 6. Edema pulchra, p. 64. 

 „ 7. Calledema sodalis, p. 66. 

 „ 8. Archylus nigrispai-sns, p. 64. 

 „ 9. Piisinoptora opalinii, p. 78. 

 „ 10. Tifama exusta, p. 68. 



