The Southern Cabbage-Butterfly. —Pieris protodice. Bd. Lee. 
This and the following species are 
inserted here only for the purpose 
of enabling those who receive this 
but are not in possession of my 
former reports to distinguish the 
species of this genus, which are 
found occasionally infesting cabbage 
in Illinois. ■ 
The caterpillar is of a greenish 
blue color, with four longitudinal 
Fig. 5.— Southern Cabbage Butterfly. yellow stripes equally distant from 
each other and extending the whole length of the body; each of these 
lines has two blue dots in them on each segment; the under side a 
paler green, flecked with dark dots; head usually the same color as 
the body. Rather largest in the middle and tapering slightly toward 
each end; the sutures between the segments more distinctly marked 
than in the other species. This, as well as the larvae of the other species, 
has sixteen legs, six near the head, eight ventral, and two on the 
posterior segment. Length, when 
full grown, about one inch and 
one-eighth. When newly hatched 
they are of a uniform orange 
color, with a black head, but 
become a dull brown before the 
first moult. 
The chrysalis differs but slighly 
from that of P. rapee; it is gener¬ 
ally a light blueish gray, more or 
less speckled with black, the ridges 
edged with buff or reddish. The 
anterior point is usually less acute 
than in P. rapee. 
The figures of the butterflies given here will sufficiently distinguish 
this from the other species. The ground color is a dull white without 
any tinge of yellow; the female, which is the larger of the two sexes, (Fig. 
5) has the outer margin of the fore wings marked with a row of trian¬ 
gular black spots; there are also four trapezoidal black spots placed as 
shown in the figure. In the male, the black markings are similar in 
form and position so far as they appear, but generally the marginal 
line and posterior spot are wanting or but faintly represented; and 
the hind wings are without the gray shading so distinct in the female. 
Expansion of the wings varies from one and three-fourths to two and 
one-half inches. 
Found throughout the State and very common, but only occasionally 
seriously injurious to cabbages. 
Fig. 6—a, Larva, b, Chrysalis. 
