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. 
Fig. 30. 

The Asterias Butterfly. 
Of Nocturnal 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, ete. This was the case with 
the first Nocturnal Moth of which I shall speak. 
In the months of June and July, if we look on the dog- 
