Report of National Museum, 1890. Ridgway. 



PLATE XXI. 



OUTLINES OF TAILS OF HUMMING BIRDS. 



Fig. 1. Eugenia imperatrix. 

 Fig. 2. Eupetomena macroura. 



Fig. 3. Hylonympha macrocerca. 

 Fig. 4. Sappho sparganura. 



