Lepidoptera of tJie Amazons. 59 



if M. Guenee is right in referring his A. palmipes to 

 Argidia, he is wrong in referring H. ortilia and //. orphna 

 to Hypenaria. 



103. Argidia tarchon. 



Phaloina tarchon, Cramer, Pap. Exot. ii. p. &5, 

 pi. 139, fig. C (1779). 



Azirista intracta, Walker, Lep. Het. xr. p. 1639, 

 n. 1 (1858). 



Arr/idia S7ibruhra, Felder, Reisc der Nov. Lep. iv. 

 pi. 118, fig. 28 (1875). 

 Jurnana, Rio Pnrus, 24th September ; near Santa 

 Cruz, Rio Solimoes, 9tli December, 1874. 



This species is so nearly allied to A. calus, of Guenee, 

 that at first I hesitated as to whether or not it was 

 distinct ; yet this author refers it to Thermesia. 



104. Argidia obliterans. 



Plaxia obliterans, Walker, Lep. Het. xv. p. 1627, 

 n. 6 (1858). 

 Ayrao, Rio Xegro, 3rd July, 1874. 



This species has all the characteristics of Argidia ; it 

 differs entirely in form and structure from Plaxia, the 

 type of which is P. macarea. 



The Apistis of Felder (part Hiibner") represents typical 

 Plaxia. I think it very doubtful whether M. Guenee's 

 second species, P. hypenoides, is congeneric with P. ma- 

 carea, as he states that the wings are angular : this is 

 hardly true of Cramer's insect.' 



105. Argidia subvelata. 



$. Hypernaria (sic) subvelata, Walkei*, Lep. 

 Het. Suppl. p. 1082 (1865). 



$ . Argidia aganippe, Felder, Reise der Nov. Lep. 

 iv. pi. 118, fig. 27 (1875). 

 Pupunha, Rio Jurua, 5th November, 1874. 



The single example taken by Dr. Trail diflfers from 

 Walker's type in the coloration of the undersurface of the 

 primaries, the ground-colour being fuliginous-brown, with 

 the reniform spot and a broad nebulous costal border, as 

 far as the second or discal line, bright ochreous. The 

 type has the ground-colour wholly ochreous, which seems 

 also to be the case with Felder's example ; Dr. Ti'ail's 

 specimen is, therefore, an interesting variety. 



