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Genus MANCIPIUM. 
So close a connexion subsists between this and 
the preceding genus, that the species have been ge- 
nerally grouped together under a common generic 
name. But the structural differences of M. Carda- 
mines and Daplidice are too considerable to admit 
of their being associated with the true Politics , how- 
ever much they may be allied in habit and general 
appearance. The principal distinctions consist in 
the relative proportion of the joints of the palpi, 
which, in Mancipium, have the terminal joint shorter 
than either of the two others ; in the rounded form 
of the tip of the anterior wings ; and in having the 
under side of the secondary pair variegated — cha- 
racters sufficient to constitute a subgenus. The 
chrysalis (at least in M. Cardamines ), is boat-shaped, 
being widest in the middle, and narrowing gradually 
to both ends. 
