30 GROTE—THE DESCENT OF THE PIERIDS. [Jan. 5, 
This form is the most generalized of the Pieridini of which I 
have any material. It stands below Heéomota from the five- 
branched radius, but shows less residual features in other respects. 
We now come to two genera (if really different) which appear to 
stand between /7eéomoza and the present Ascéa line. 
Gen. Callosune Doubleday, 1847. 
Type: C. dane: 
Callosune dane. 
Wings entire, form of “/odina and this approaches the latter by 
the shape of the discal cells which are somewhat broadened 
outwardly and short. Radius four-branched; Ar and 2 in 
original position above cell; #3 out of #4 -+ 5, a rather long 
furcation. Cell closed; dA/r does not ascend radius, but fuses 
with it at upper angle of discal cell; J/2 radial; cross-vein be- 
tween J7/2 and 3 a little degenerate. Hind wings with humeral spur 
pointed, a little long and turning sharply toward apex of wing. 
This and the following are more generalized forms than PAr‘ts- 
sura, but appear to connect with the line H/odina—Phrissura. 
Gen. Anthopsyche Wallengren, 1857. 
Type: “A: ache. 
Anthopsyche achine. 
Differs from Cadl/osune only as follows: #1 and 2 a little more 
separate at base; 4/1 apparently more freely fused with radius; 
cross-vein between radius and J/2 a little shorter ; on hind wings 
the cross-vein meets the point of junction of J/1 and JZ2, whereas 
in Cadlosune it meets J72 before the junction. By these points of 
difference it seems the more specialized form. 
We now come to several isolated genera which I believe to be 
unequally related to the Ascéa line or to some of its members as 
enumerated by me. No doubt more connection might be supplied 
by material inaccessible to me. They appear to me to be connect- 
ed here rather than to the line Prerzs-Aporia, strong-winged, more 
specialized forms, which I will afterwards consider before going on 
to the angled Whites. 
Gen. Melefe Swainson, 1832. 
Type: M. limnoria. 
Melete limnoria. 
This is, I believe, the butterfly which Mr. Scudder calls ‘‘ AZedere 
Lycimnia (limnobia),’’ Hist. Sketch, 215. Isuppose ‘‘ Zémnobia’’ to 
