112 
GENUS PONTIA. 
The judiciousness of the above observations, feiv who 
have had an opportunity of examining the insects to 
which they refer will, we think, hesitate to acknow- 
ledge ; and, taken in connexion with other points of 
agreement subsequently pointed out, they seem to 
leave little doubt about the propriety of regarding 
the reputed new species as mere varieties. Several 
competent observers, however, being still inclined 
to consider them distinct, it may be as well in the 
meanwhile to regard them in that light, till it be seen 
whether further investigations tend to confirm or 
confute this opinion. With the view of aiding such 
inquiries, we have described P. Chariclea, Metra, 
and SabelliccB, and given figures of them from cha- 
racteristic examples procured from the cabinet of the 
eminent naturalist by whom they were first named 
and described as likely to prove genuine species. 
The true Pontia may be known by the following 
characters : Antenna; long and slender, terminating 
in a somewhat abrupt, compressed, obconic club, 
consisting of seven or eight joints, and grooved on 
one side ; palpi clothed with scales, and fringed with 
hairs externally, the terminal joint longer than either 
of the preceding; anterior wings nearly three-cor- 
nered, the apical angle not very acute ; the posterior 
wings rounded and not variegated beneath : legs alike 
in both sexes, the claws slightly forked. The chry- 
salis terminates anteriorly in a single beak, and is 
attached by the tail, and has a loose band round the 
middle. 
