220 
PROCEEDINGS OF THE NATURAL [APRIL, ’89. 
tamly very different from its victim, Dorvphora. It seems 
probable that a striped Lebia , at first only remotely re¬ 
sembling Disonycha, may have become associated with 
this Chrvsomelid, and by natural selection have gradually 
had its coloring perfected along a line of increasing resem¬ 
blance to its victim. This seems more probable than that 
a unicolorous or unstriped form like Lebia riridis, or tri¬ 
color, or atriventris, should have been the original form 
from which this close resemblance was evolved. 
The specimens of Lebia furcata were about a tenth as 
numerous as the specimens of Disonycha. I believe that 
e aw will hold good that all carnivorous mimeticforms 
winch prey on the forms they mimick are much less abund- 
ant than their victims. They are doomed to be repre- 
t ~ a indi ^duals, as any great increase in their 
in ^° Uld be immediatel y Checked by the falling oft 
m the food supply. 
I have f ' ^ Commo n among our native Coleoptera 
mlht b that S ° me Species of Clvtus-like longicoms 
that the prr et ^° f Certain black “d «How was s, and 
Kirby, copied some 
Spains 1 P ^ the cIose resemblances of the 
five of mimicry r Onlvfieirstud 1 ^ ^ u P on as indica ‘ 
deciding whether a particular S^m^Z ^ “ 
wonderful casi^finsect' en . COnsiderab le attention to the 
ern and Eastern A bl mimiCr - v so numerous in South- 
says that “no a ^ 1S Undoubte dly correct when he 
upon observation fc the”fid^T‘ 
few mimetic forms-the HpV ' -7 Whl e m the case of a 
fated form is also an insect^nd 5 ^ 
be laid side bv side in n ’ ' , ! the two specimens may 
majority of m f m “£ ££ at home. the great 
the environment which canno/le’ br^T® '° f 
e br ought into compan- 
