61 



26. A single male butterfly was taken at Heart River Crossing, 

 June 26, which resembles very closely Aniblyscirtes vialis in the form 

 and neuration of the wings, in the structure of the legs and antennae, 

 and even in the coloration and markings of the wings, so far as these 

 could be made out from a somewhat rubbed individual; but there is 

 a perfectly distinct indication of a discal dash of raised scales, the 

 sexual mark of the fore wings in so many Astyci, which is altogether 

 wanting in Amblyscirtes. I await the reception of further material 

 before describing this interesting form. 



27. Ocytes Uncas (Edw.). One pair, both fresh, were taken 

 at Heart River Crossing, near timber in the valley of the river, June 

 26. At the crossing of the Big Muddy, on the open prairie, two fe- 

 males, one of them fresh, the other somewhat less so, were taken 

 June 28. 



28. Atrytone Logan (Edw.) Scudd. A torn and rubbed 

 male and a pretty fresh female were taken on the banks of the Yel- 

 lowstone, among sage brush on the river bottom, July 18. 



