MAZBPPA HUMMING-BIRD. 157 
marked “male” and “female,” without any difference 
except in the brilliancy of colouring. 
Lesson has introduced another bird into this group, 
which, to judge from his representation, will rank 
elsewhere. The tail is slightly forked, and of a dark 
tint. He names it Colibri simple, Trochilus sim- 
plex. It is a native of Brazil. 
The last of the group is 
