34 Bulletin of the Brooklyn Entomological Society Voi. viii 



I did not examine the genitalia and androconia. The name 

 given is the Latin adjective meaning unspotted or unspeckled. 



Described from nine cf and twelve ■? cotypes. 

 12 from Provo, Utah, variously dated in July, collected by Tom 



Spalding. 

 8 from Utah (general label), no date. 

 1 from Miniota, Manitoba, in July. 



Means were selected as types, 1 d' and 1 6 ; the remaining 

 specimens are considered as paratypes. The types are retained 

 in my own collection. One pair of paratypes each are to be 

 deposited with the National Museimi in Washington, American 

 Museum of Natural History in New York, Dr. Henry Skinner in 

 Philadelphia, and Dr. William Barnes in Decatur, 111. 



I have checked all literature relating to 5. titus as recorded 

 in the bibliography below, and I can find no reference to any such 

 variation as here described. Elrod in his "Butterflies of Mon- 

 tana" finds that specimens in Montana occur "with or without 

 an outer marginal row of orange spots or a distinct orange band" 

 on the upper side, 



French in "The Butterflies of the Eastern United States" 

 also refers to orange spots on the upper surface of the hind wings 

 in some specimens. It is quite usual to find specimens with red- 

 orange spots repeated upon the termen of the primaries beneath; 

 also in females there are often one or more spots of red-orange 

 near the anal angle of the secondaries above and sometimes a 

 fulvous siiffusion above at the anal angle of the primaries. 



For the most part, eastern specimens from the southern 

 part of Canada, New England, the Middle States and the South- 

 western States have well defined discal bands of black spots on 

 the under side of both wings, which are more or less edged with 

 white. I have two male specimens from the Catskills, taken at an 

 altitude of from 1,500 to 2,000 feet, aberrant in that the discal 

 rows of black spots are very poorly defined and there are practi- 

 cally no white markings on the under side. The black spots, 

 however, cover about the normal area and are indistinct because 

 of suffusion and appear to be blurred. They are not like the spots 

 in variety immaculosus which are, where present, reduced to fine 

 points. 



