194 BULLETIN 15 7, U. S. NATIONAL MUSEUM 



a point on the abdominal margin above the anal ocellus and about 

 as far distant as the longest diameter of the latter, thus crossing the 

 cell; its outer border is strongly curved, almost parallel to the row 

 of submarginal yellow lunules, and ends at the same point above 

 the anal ocellus. The end of the cell lies usually at the center of 

 the yellow band. The yellow band on the hind wings is more con- 

 spicuous than the corresponding row of spots on the fore wings. 



The band on the hind wings is somewhat inconstant in position. 

 Though most commonly the end of the cell lies in the middle, the 

 band may move basally so that it crosses very broadly the end of 

 the cell (pi. 40, fig. 2), the yellow patch within the cell being as 

 long as the width of the cell, and there being but one or two small 

 spots, or even none at all, outside of the cell. 



More frequently the band is somewhat narrowed through the 

 inner border of the uppermost spot sloping outward instead of in- 

 ward, the inner edge of the uppermost spot making an obtuse angle 

 with the straight line running from the lower inner angle of the 

 first spot to the abdominal margin, which in this case crosses only 

 the extreme outer portion of the cell, the yellow patch within the 

 cell being scarcely half so broad as the portion of the band beyond it. 



In this most frequent form there is usually a complete line of in- 

 distinct and hazy blue spots between the submarginal yellow lunules 

 and the yellow band, and the uppermost lunule is crossed in the 

 middle by an orange band. 



The black dot in the orange spot at the anal angle is very variable 

 in size. It is commonly about one-third the diameter of the orange 

 spot, but may be so large that it is bordered anteriorly only by a 

 narrow orange band changing) to yellow posteriorly, or it may be 

 reduced to a few black scales, or even be wholly absent. 



While in the males all the yellow markings on the upper surface 

 are usually light clear yellow, they are not infrequently more or 

 less deep ochreous. 



In worn and faded individuals all the spots on the fore wings 

 become chalky white and finally translucent, while the yellow band 

 on the hind wings becomes ochreous. 



The fore wings in the males vary considerably in shape. They 

 are usually twice as long as broad with the costal border moderately 

 or even only slightly curved in the basal two-thirds and the outer 

 border nearly or quite straight, but occasionally they are considerably 

 more than twice as long as broad, with the costal border strongly 

 curved and the outer edge concave. 



In the second form of the male (pi. 42, fig. 2) the yellow spots 

 on the fore wings are greatly enlarged and broader than the space 

 between them and the submarginal yellow spots, the lower ones very 

 much so. They are strongly rounded or angled exteriorly, and the 



