858 Address of A. R. Wallace at the Glasgow Meeting. 
different kinds of butterflies now known, and about half of 
these are so distinct in color and marking that they can be 
readily distinguished by this means alone. most every con- 
ceivable tint and pattern is represented, and the hues are often 
of such intense brilliance and purity as can be equalled by 
neither birds nor flowers. 
Any help to a comprehension of the causes which may have 
concurred in bringing about so much diversity and beauty must 
be of value, and this is my excuse for laying before you the 
more important cases I have met with of a connection between 
color and locality. 
vailing blue green color not found in an other continent.* 
Again, we have a group of African Pieride which are white 
is colored so exactly like these that it was at first described as 
a species of Pieris. None of these four groups are known to be 
in any way specially protected so that the resemblance cannot 
be due to protective mimicry. 
In South America we have far more striking cases. For in 
the three sub-families— Danain, Acreenis, and Heliconn®— 
all of which are specially protected, we find identical tints and » 
in South Brazil. In Mechanitis, Melinea, and Heliconius, = 
sometimes in Tithorea, the species of the Southern k 
. 3 and blac 
uiana, all represented by allied species with white apical spots 
. 
almost always orange-yellow and black. Other ¢ 
like nature, which it would be tedious to enumerate, bu pare 
are very striking when specimens are examined, occur ™ ree 
of the same groups inhabiting these same localities, a8 We < 
Central America and the Antilles. The resemblance thus pm 
* Romaleosoma Euryphene (Nymphalide), Papilio zalmoxis, and several 
of the Nireus group (Papilionide). 
