30 PROCEEDINGS OF THE NATIONAL. MUSEUM Vol.68 



FiQ. 10. Pediculus (Pedieulus) humanus americanus, new variety ; female, 

 taken from the scalp of a prehistoric American Indian mummy, col- 

 lected at Sixrco, Peru ; ventral view. 

 11. Pediculus (Pediculus) humanus americanus, new variety; male, taken 

 from the scalp of a prehistoric American Indian mummy, collected at 

 Canyon del Muerto, New Mexico ; ventral view. 



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