NYMPIIALIDAE : ARGYNNTDI. 1799 



the first joint as long as the next three together, the fifth equal to the third. Claws as 

 in Speyeria but stouter; pai'onychia very slight, slender, closely appressed to the claw, 

 not half its length, curving in an opposite direction, thread-like; pulvillus small, cir- 

 cular, on a long pedicel. 



Egg. Closely resembling that of Speyeria, from which it apparently difl'ers in the 

 more numerous horizontal raised cross lines, making the quadrangular cells relatively 

 broader than in Speyeria. 



Mature caterpillar. To judge from Mr. Edwards's description, the only material 

 at hand, the caterpillar agrees with that of Argynnis rather than that of Speyeria and 

 is remarkable for the length of the laterodorsal spines of the first thoracic segment. 



Chrysalis. This again agrees better with Argynnis than with Speyeria but I have 

 no specimens for a proper study of its relations. 



This genua comprises but tlie single species here described, to which 

 reference is made for further details. 



SEMNOPSYCHE DIANA. 



Fapilio (iicrna Cram., Pap. exot., ii: 4, pi. (1SG8); li, Argynnis 7 (1876); Can. ent., vi: 



98, figs. D, E (1779). 121-124 (1871) ;— French, Butt. east. U. S., 1.53- 



Argynnia diana Say, Amer. ent., pi. 71 155 (1886). 



(1824); Proc. ent. soc. Phil., iii: 431-433 Semnopsyche dia7iaSc\idd.,B\il\.'BaS.soc. 



(1864) ;— Edw., Butt. N. Amer., i, Argynnis 1 nat. sc, ii : 259. 



Imago. Head covered above with fulvous (<J ) or black mingled with a few fulvous 

 (2) hairs; palpi fulvous with black hairs ; antennae blackish fulvous above, fulvous 

 beneath ; the club excepting the extreme base and tip black. 



Wings above black brown with a nearly uniform, purplish tinge on the basal three- 

 fifths; beyond this the two sexes difler completely: In the male the dark basal color 

 runs In the /ore icings in narrowing threads along the nervule tips, half or more than 

 half way to the margin giving a strongly lunulate boundary to the basal color ; the 

 outer third of the wing, or more than that above, is bright fulvous orange and is crossed 

 by two series of black brown powdery spots, the inner more distinct than the outer, 

 parallel to each other and the outer margin ; the inner crosses the middle of the outer 

 half of the wing, the outer is nearer to the outer border than to the inner series and 

 the black-edged margin is preceded by a powdery thread of blackish brown enlarging 

 into spots at the nervules. On the hind wings the dark basal portion is separated 

 from the outer orange fulvous portion by a nearly uniform, arcuate line subparallel to 

 the outer border, lunulate only in the subcostal interspace where, as also in the median 

 interspaces, just outside the dark bordering, is a minute, powdery, blackish brown spot ; 

 extreme margin as in the fore wings. 



In the female the black purplish color of the base is extended over the entire fore 

 wing, but it includes in the outer half three series of bluish white powdery spots, the 

 outer series and the middle spots of the middle series more solid ; these three series 

 run parallel to the outer margin ; the outer and inner series consist of roundish spots, 

 the middle of longitudinal bars, and these occur in nearly every interspace in the 

 wing; and besides them there are three powdery dashes, the lowest inconspicuous, de- 

 pending from the costal border within the inner series of spots. On the hind wings 

 the color of the base is also extended to the margin but is deeper In tint excepting 

 where it is traversed by the markings ; these consist of a very brown, purplish blue, 

 extra-mesial band broadly severed by the nervures, the inner limit of which is similar 

 to the inner limit of the orange exterior of the female, distinct and black-edged ; the 

 outer is powdery and vague, terminating at about an interspace's width from the 

 outer margin, and within this band, next its inner margin, is an arcuate series of five, 

 lari'e, round, blackish spots in the subcostal, subcosto-median and median inter- 



