EXOTIC MOTH.S. 
It is still a matter of dispute whether the Ura- 
iiiidag, the splendid tribe of Lepidoptera with which 
we terminated our account of Foreign Butterflies, 
really appertains to the true butterflies, or should 
be included among the crepuscular kinds. The 
structure of the antenna, organs of the highest 
importance in the arrangement of this order, seem 
to indicate the latter as their true position; and 
this is further corroborated by the metamorphoses, 
Avith which we have but recently become acquainted. 
In ignorance of these, and influenced by tlie brilliant 
colours of the typical species, and their general ap- 
pearance, Latreille arranged them with butterflies 
after Hesperia, and has been followed by most sub- 
sequent writers. In commencing the Heterocerous 
section, as has been done by the author just named, 
with Agarista, a very close connexion, therefore, 
subsisted between the two great divisions, so close, 
indeed, that it would be no easy matter to define 
