^IV. IJVT.SFCTS, 



U. S. DEPARTMENT OE AGRICULTURE. 



BUREAU OF ENTOMOLOGY— BULLETIN No. 66. 



L. O. HOWARD, Entomologist and Chief of Bureau. 



SOME INSECTS IN.JURIOUS TO TRUCK CROPS. 



I. THE ASPARAGUS MINER. 



NOTES ON THE ASPARAGUS BEETLES. 



By F. H. CHITTENDEN, Entomologist in Charge of ^reeding Experiments. 



II. THE WATER-CRESS SOWBUG. 

 THE WATER-CRESS LEAF-BEETLE. 



By F. IT. CHITTENDEN, Entomologist in Charge of Breeding Experiments. 



III. THE CRANBERRY SPANWORM. 



THE STRIPED GARDEN CATERPILLAR. 



By F. II. CHI7:TENDEN, Entomologist in Charge of Breeding Experiments. 



IV. THE LEAFHOPPERS OF THE SUGAR BEET AND THEIR RELATION TO THE 

 "CURLY-LEAF" CONDITION. 



By E. D. BALL, Ph. D., Special Field Agent. 



V. THE SEMITROPICAL ARMY WORM. 



By F, H. CHITTENDEN and H. M. RUSSELI/. 



VI. THE HOP FLEA-BEETLE. 



By F H. CHITTENDEN, Sc. D., in Charge of Truck Crop and Special Insect Investigations. 



VII. MISCELLANEOUS NOTES ON TRUCK-CROP INSECTS 



By F. H. CHITTENDEN, Sc. D., in Charge of Truck Crop and Stored Product Insect Investigations. 



WASHINGTON: 



GOVERNMENT PRINTING OFFIOE. 



1910. 



