1 
Technical Series No 6. 
U. S. DEPARTMENT OE AGRICULTURE. 
DIVISION OF EXT< >MOL< )( ! V 
THE SAN JOSE SCALE 
AXD ITS NEAREST ALLIES. 
A BRIEF CONSIDERATION OF THE CHARACTERS WHICH DISTINGUISH THESE CLOSELY 
RELATED INJURIOUS SCALE INSECTS. 
Prepare« I under the direction of I hf Entomologist 
BY 
T. D. A. CO( 1KERELL, 
Entomologist of the New Mexico Agricultural Experiment station. Las ('races, 
New Mexico. 
WASHINGTON : 
GOVERNMENT PRINTING OFFICE, 
1897. 
