484 Loiil Ilolbschikl on Arcti'm;o//o>H 



restricted to the Asiatic species, and Pahistra with laboulhcni 

 as its jijciiotypc must be used for the American forms with 

 the exception of vestalis, \y\nc\\ will probably require a new 

 genus. 



o c? c?> 7' ? ? bred (larva black, dorsal tufts short with 

 a double median row of still stouter rufous-buff ones, lateral 

 tufts black, long, and silky ; cocoon ovate, hainmock- 

 sliaped, soot3'-black, smooth). (I (^ , 1 ?, Rio Madeira, 

 also in collection.) 



144. Palustra tenuis. Berg. 

 Pahistra tenuis, Berg, Stett entom. Zoit. vol. xxxviii. p. 259 (1877). 



5 ,^(?, 4 ? $ bred (1 J, 1 ?, Rio ]\[adeira, in the 

 collection). 



145. Pseudalus aurantiaca, Rothsch. 



rseiulalus (tnrantiacm, Rothschild, Novit. Zool. vol. xvi. p. 62, pi. vii. 

 fi.srs. 2o, 26 (1909) (Aroewarwar Creek). 



2 S S caught. 



[Ecpantheria mus bahiaensis, Oberth. 



Ecpanthcria hahi<ie?isis, Oberthiir, Etud. Eutoni. livr. vi. p. 100, 

 pi. xvi. fig. 5 (1881) (Bahia). 



1 ? , Pernambuco, bred (pupa deep brown shagreened, 

 abdominal interspaces red-brown ; cremaster short, consist- 

 ing -of two bunches of stiff bristles ; larval spine entirely 

 black with stiff bristly hairs).] 



146. Ecpantheria cunigunda (Stoll). 



riidlcpna cimiywida, Stoll in Cramer, Pnp. Exot. vol. iv. pt. xxix. 

 p. 104, pi. cccxliv. figs. D, E (1781) (Surinam). 



The species of Ecpantheria, with few exceptions^ are very 

 complicated and difficult to identify correctly. Sir George 

 Hamjjson has sunk a lai'gc number of species created by 

 Monsieur Oberthiir in his monograph, but, in my opinion, 

 in most cases has placed them as synonyms to wrong 

 species. Tlie forms of the cunifjnnda-bari group are espe- 

 cially puzzling, and I believe the [)rincipal difficulty arises 

 from the rapid and often very irregular fading of the wings 

 and body. I have come to the conclusion that the specimens 

 from the Guianas, Norlhern Brazil, and the Amazons are 

 all one form and synonymous, while the South Jirazilian 

 specimens form a local race, and the two races must stand 

 thu.s : — 



