LÉPinOPTÉROLOGIE COMPARÉE 655 



» Hah. Eastern Ecuador (Buckley). In Mus. Salvin et God- 

 man; etiam in Mus. Hopeiano Oxoniae. 



» This lovely little msect formed part of a collection of 

 insects from Eastern Ecuador, belonging- to Messrs. Godman and 

 Salvin, to whom the Hcpeian Collection is indebted for a spé- 

 cimen. It was at first regarded as a Butterfly and placed in the 

 family Erycinidae, to some of the species of which it bears a 

 striking ressemblance. The arrangement of the veins of the 

 wings, however, proves its position in the genus Castnia, wilh 

 none of the species of which, however, does it possess a very 

 decided relationship. The branches of the postcostal vein form 

 an oblong cell in front of the anterior division of the discoidal 

 cell, which is closed in its upper part by the angulated base of 

 the two discocellular veins (See hg. i, p. 142, b 5* and c 3*). 

 The anal vein emits a short branch in the middle of its hinder 

 margin. » 



Mr. Clarence Buckley, by whom this species was captured, 

 informs me that he took the spécimens at Sarayacu, in a little 

 clearing caused by the fall of a tree, thtir habit being to sit with 

 the wings open (flat ?) on the tops of young leaves, then to take 

 a slow fiight round the clear space without fluttering the wings, 

 and to settle again at the old place, whence, after remaining for 

 a few minutes, the set off again for another round. He only 

 found the species in this one spot, although there were plenty of 

 similar open spaces caused by iailen trees in the neighbourhood. 

 The îight of ail the Castniae is generally very rapid ; but in this 

 one it is just the reverse, and they were very easy to take either 

 sitting or flying. He never took more than one any day ; and 

 sometimes for two or three weeks they seemed to disappear, when 

 suddendly one would be found in the same spot and on the 

 same tree. 



\Y estwoodia Erycina Westw. est le type d'un groupement qui 

 paraît tenir, dans la famille des Castniidae, le même rôle que 



