6 PROCEEDINGS OF THE NATIONAL MUSEUM vol.71 



Another specimen (pi. 4, fig. 30) is similar, but the markings on 

 the fore wings within the row of spots adjacent to the lunules are 

 not so heavy, and the hourglass-shaped spot is reduced to a trace 

 of its lower portion. On the hind wings extending downward and 

 slightly outward from the middle of the costal margin there is a row 

 of four small white spots, with another in the lower portion of the 

 cell just above the origin of Mj and another below the cell just inte- 

 rior to Ml. 



One male (pi. 2, figs. 15, 16) has the left fore wing above with the 

 white spots slightly elongated between the veins. In the angles 

 between M3 and M2 and M2 and Mi there is a thick sprinkling of 

 white scales; between Mi and SM the lunule is fused with the adja- 

 cent spot forming an oblong white patch divided by a hair line of 

 black, and there are two elongated ill-defined spots of white extend- 

 ing from beneath the origin of Mi nearly to the large outer spot. 

 On the under side all the white markings are much enlarged, though 

 not fused. The markings between Mj and SM are larger and much 

 more definite than above. The other tlu-ee wings are normal. 



The females are not so variable as the males. The chief variation 

 is in the size and brightness of the white markings which in each 

 individual are more nearly uniform in size than in the males. In the 

 females the white markings are generally rather small, and as their 

 wings are usually somewhat grayish they do not stand out in such 

 sharp contrast as they do in the males. But in some females they 

 are large and brilliantly white and tend to become confluent wher- 

 ever they approach each other (pi. 5, fig. 35) . 



In some females (pi. 5, fig. 37) the hind wings show a row of four 

 small white spots extending downward and somewhat outward from 

 the middle of the costal border, with occasionally three more extend- 

 ing from the lower end of this row and at right angles to it to the 

 inner end of the red spot within the anal angle; there are sometimes 

 one or two small white spots in the cell over the large white spots on 

 the under side. On the fore wings the fourth (innermost) row of 

 white spots is sometimes well developed (pi. 5, fig. 34), and there is 

 occasionally a white spot in the inner end of the cell, and one or two 

 beneath the origin of Mi (pi. 5, fig. 37). 



All of these small white spots occasionally appear in northern speci- 

 mens, though they are not mentioned in any of the published descrip- 

 tions of the insect. 



In one abnormal individual (pi. 3, figs. 17, 18) the upper radial vein 

 in both hind wings terminates halfway from its point of origin to the 

 margin. Beyond its termination the markings of the normally two 

 interspaces are fused. The two marginal red spots have coalesced 

 into one large one, there is a single ^-shaped lunule, vestigial on the 

 upper side and within it a much enlarged oval white spot. 



