226 BULLETIN 15 7, U. S. NATIONAL MUSEUM 



The males not infrequently show three small spots in a row ex- 

 tending directly inward from the costal margin of the fore wings 

 about two-thirds of the distance from the base to the apex, and on 

 the hind wings the last two discal spots of the female may be indi- 

 cated by a few yellow scales. 



The females have the yellow markings above greatly reduced. On 

 the fore wings, while the three small dashes near the costa^l margin 

 two-thirds of the distance from the base to the apex are similar to 

 those in the northern form, the two spots in the lower median inter- 

 spaces are only about half as large as they are in the northern female, 

 and there are no other markings on the fore wings. On the hind 

 wings only the last two of the row of four discal dashes are repre- 

 sented, these being only about half the size of those in the northern 

 form, and the spot in the last subcostal interspace is absent or is 

 indicated by a few yellow scales. Rarely the females are wholly 

 without yellow markings above. 



Beneath in both sexes the costal and outer border of the fore wings 

 and the ground color of the hind wings is much darker and more 

 reddish than in northern specimens, and the yellow markings are 

 much less extensive. The interspace between the third median and 

 the lower radial veins is occupied by a broad yellow band as wide as 

 the interspace which basally extends for a short distance within the 

 cell and outwardly ends at a distance from the outer border, which 

 is somewhat greater than the length of the fringe. Beneath this are 

 two spots occupying the whole width between the next two inter- 

 spaces, which are about twice as long (parallel to the veins) as broad; 

 their inner ends lie beneath about the middle of the yellow band, and 

 their outer ends lie some distance within its outer end. Above the 

 yellow band and opposite its middle is a j^^ellow spot occupying the 

 whole width of the next interspace, which is somewhat longer than 

 broad. Above the inner end of this spot there may be another small 

 spot. The conspicuous subcentral yellow band is usually somewhat, 

 and occasionally largely, obscured with rusty scales, leaving clear 

 yellow only the portion wnthin the cell and the outer end for a dis- 

 tance about equal to the length of the spot next beneath. In the 

 northern specimens the spots beneath the yellow band run inward to 

 the origin of the veins between which they lie, and there is a third 

 spot which is only indicated in the southern specimens. 



The marked differences between the specimens from Beltsville and 

 those from Weston, Mass., would appear to indicate that the two series 

 represent two recognizable forms. 



Though Mr. Scudder's figure represents a typical northern female 

 on the lower surface, the fore wings above are less brown than in 

 my northern female, while on the fore wings the 2 yellow spots be- 

 yond- and below the 3 subapical spots and the spot within the cell 



