Bulletin No. 4.— New Series, Revised Edition. 



U. S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF ENTOMOLOGY. 



THE PRIXCIPAL 



HOUSEHOLD I^s^SECTS 



UNITED STATES. 



L. O. HOWAKD AX]> ( . J.. >L\RLATT. 



Wiril A CHAPTER tl.V 



INSECTS AFFECTING DKY VEGETABLE FOODS. 



F. II. CHITTEXDEX 



WASHlNCrTOX: 



GOVKUNMKNT PRINTING OFFICE. 



1 Six;. 



