ORDER IV. MOTHS AND BUTTERFLIES. 



139 



may, perhaps, be provided by nature with some luminous 

 spots, visible only to their males, but not to man. 



The Diurnal Lepidoptera, called Butterflies, are seen 

 flying only during the daytime, and are distinguished from 

 the preceding ones by having a knob at the extremity of 

 each antenna; as, for example, the Asterias butterfly {Pa- 

 pilio asterias), Fig. 30. Of these we shall speak again. 



The Asterias Butterfly. 



Of Noctuimal Lepidoptera. 



The romantic imagination of naturalists has often taken 

 from ancient mythology the names of gods and goddesses, 

 or of fabulous heroes and heroines, with which to distin- 

 guish the most splendid of the lepidopterous insects. Thus 

 we have among them an Apollo, Mars, Cybele, Iris, Atro- 

 pos, Ulysses, Ajax, Nestor, etc. This was the case with 

 the first Nocturnal IVToth of which I shall speak. 



In the months of June and July, if we look on the dog- 



