Technical Series No. 8. 
U. S. DEPARTMENT OF AGRICULTURE. 
DIVISION OF ENTOMOLOGY. 
CONTRIBUTIONS TOWARD A MONOGRAPH OF THE AMERICAN 
ALEUR0DID1 
A. L. QTJAINTANCE, M. S., 
Biologist and Horticulturist of the Georgia Agricultural Experiment Station, Experiment, Q-a. 
THE RED SPIDERS OF THE UNITED STATES 
(TETRANYCHUS AND STIGM^US). 
BY 
NATHAN BANKS, M. S., 
Assistant, DiTision of Entomology, U. S. Department of Agriculture. 
PREPARED UNDER THE DIRECTION OF THE ENTOMOLOGIST. 
WASHINGTON: 
(iOVKRXMKXT PKIXTIX(; OFFICE, 
1 1)00. 
