52 



of three white lines, the middle one the finest and most cleaiTy de- 

 fined. The seventh, eighth and ninth rings yellow. The posterior sub- 

 dorsal papilla of the body rings bears two unequal hairs, the anterior 

 but one; above the spiracles and in front of them also is a papilla; 

 below the same there are two from which arise long hairs, five from 

 posterior and ten or twelve from anterior, these are spread out fan- 

 like, below these a prominent longitudinal fold. From the first ring 

 proceed long hairs reaching over and beyond the head. Hairs all 

 unbranched and plumose. The body is considerably flattened, so 

 when looking down upon it the spiracles from either side may be 

 seen at once, spiracles conical, rings black. 



Thepupa is .3 of an inch in length; light green, some of them have 

 a reddish stripe along dorsal part of the abdomen, the conical spiracles 

 of such have the same hue. The upper part of the rings well clothed, 

 especially at extremities, and along the lateral ridges. Pupa fastens 

 to a tuft of silk by means of the hooks of the last ring. Moth appears 

 through greater part of July. 



All the above mentioned larvae are common, but their moths, 

 except montanus, have not been noticed in any numbers, even when 

 looked for at the time when known to be hatching. It is easy to 

 see how a rare species may escape so long the vigilance of collectors. 

 Montanus has been seen literally in hundreds among the golden-rods 

 where it abounds. All these species appear to be single brooded. 



