76 Mr. A. G. Butler 07i the 



Family SATURNIIDiE, Walker. 

 Genus Hyperchiria, Huhner. 



138. Hypercliiria approximans. 



Hyperchiria apirroximans. Walker, Lep. Het. vi. 

 p. 1311 (1855). 

 On board the Yeamiaba, Manaos, 30th August, 1874, 

 This species agrees very fairly with Walker's descrip- 

 tion. 



139. Hypercliiria canitia. 



PhalcEua (Attacus) canitia, Cramer, Pap. Exot. iv. 

 ph 304, fig. D. (1782). 



Praia de Rebeiro, Kio Solimoes, 27th November, 1874. 



The single example agrees tolerably with Cramer's 

 figure. 



Walker refers //. canitia to Dirphia, never noticing 

 how closely allied it is to his Hypercliiria approximans. 



These two species would perhaps be more correctly 

 referred to the genus Dirphia, but this can only be settled 

 by a careful comparison of the structure of the two grou})s : 

 Boisduval aj^pears to have redescribed them as species 

 of/o. 



140. Hyperchiria io. 



Bomhyx io, Fabricius, Syst. Ent. p. 560, n. 16 

 (1775). 

 Conccicao, Rio Negro, 15th June ; on board the Manado, 

 Santarem, 21st March, 1875. Boisduval has renamed 

 this H. Fabricii. 



141. Hyperchiria stollii. 



Io stollii, Boisduval, Ann. Soc. Ent. Beige, xviii. 

 p. 228 (1875). 

 Uru9aca, Rio Jurua, 9th November, 1874. 



Genus AuTOMERis, Huhner. 



142. Automeris scapularis. 



Io scapularis, Boisduval, Ann. Soc. Ent. Beige, 

 xviii. p. 236, n. 49(1875). 

 Prainha, 9th December, 1873. 



143. Automeris serpina, n. sp. 



Above rosy-brown, pale; primaries subfalcate ; the extra- 

 basal line ill-defined, transverse, slightly inarched, but 

 barely distinguishable above the median vein ; discal line 



