29 
Virginiensis , Edw., is also admitted into the lists of some authori¬ 
ties as a good species, but it is an unspotted insect, so closely allied 
to Oleracea that there would appear to be no substantial grounds for 
considering it as distinct. The only difference noticeable, is a slight 
grayish brown shade on the basal portion of the wings above. It has 
been found in Virginia and Mr. Saunders states that he has also 
found it in Canada. The larva, in color and markings as well as 
habit, agrees exactly with that of Oltracea , hence we think it safe to 
consider it but as a variety of that species. 
Yreka, Reak., is certainly very closely allied to Rapce, and hence 
Mr. Strecker, who has the type specimens in his possession, appears 
to be fully justified in connecting it with that species. As Rupee is 
found in Siberia and a large portion of Northern Asia, it would be 
nothing strange to find it in California, the locality from which Mr. 
Reakirt’s specimens were obtained. 
JSTovanglice, Scudd., is confessedly but a yellow variety of Rapoe. 
Calyce , Edw., appears to be recognized as a true species. It is 
found in Nevada and California, and is closely allied to Sisymbrii. 
For our present purpose—but without any attempt to decide critical¬ 
ly in reference to what are true species, as this must be decided by 
those who make the butterflies a special study—we will adopt the fol- 
lowing arrangement: 
» 
1. Oleracea. Harr. 
Nasturtii. Boisd. 
Pallida. Scudd. 
¥ 
Marginalis. Scudd. 
Iberidr.'s Boisd. 
4. 
Monuste. Hub. 
Castoria. Reak. 
Hippomunuste. Hub. 
Resedae. Boisd. 
Cleomes. Boisd. 
Cruciferarum. Boisd. 
Orseis. Godt 
Casta. Kirb. 
Albusta. Sepp. 
Frigida. Scudd. 
Phileta Fabr. 
Hulda. Ed •/. 
Suasa. Boisd. 
Borealis. Grote. 
5. 
Protodice. Boisd. 
Virginiensis. Edw. 
Vernalis. Edw. 
2. Rap,e. Linn. 
Beckerii. Edw. 
Yreka. Reak. 
6. 
Occtdentalis. Reak. 
Novangliae. Scudd. 
7. 
Sisymbrii. Boisd. 
3 Venosa. Scudd. 
8. 
Calyce. Edw. 
„ I give here descriptions 
• , • 
of some of 
the most prominent species and 
varieties: 
1. P. Oleracea. 
In addition to what has already been given, I should state that 
the body is black; antennae blackish, annulated with white; ochre- 
ous at the eqd of the club. 
a. Pallida. —Above, very pale-yellowish, nearly white; base of both 
wings and basal half of costal border of primaries dotted with 
grayish scales; whole costal edge of primaries black; the male has, 
in addition a band of grayish scales on the posterior border of 
primaries, as in the male of P. venosa , turned abruptly towards, 
and sometimes interrupted at the angle, extending to the third in¬ 
ferior nervules; and in the middle of the space between first and 
second inferior nervules, as in both sexes of P. venosa , a cluster of 
grayish scales. 
Beneath, secondaries and apex of primaries yellowish, with some¬ 
times a few indistinct grayish scales scattered along the nervures, 
otherwise quite immaculate. 
Body, above black, with scattered yellowish hairs, beneath yel¬ 
low; antennae as in P. venosa. The wings expand two inches. 
(Scudder.) 
