16 PUBLICATIONS OF BUREAU OF ENTOMOLOGY. 
No. 67. The clover root-borer (Hylastinus obscurus Marsham). By IF. M. 
Webster. pp. 5, figs. 4. December 28, 1905. 
No. 68. The tobacco thrips and remedies to prevent ‘ white veins” in wrapper 
tobacco (Huthrips nicotiane Hinds). By W. A. Hooker. pp. 5, figs. 2. 
February 26, 1906. 
No. 69. Some insects affecting the production of red clover seed. By F. M. 
Webster. pp. 9, figs. 8. April 12, 1906. 
No. 70. The Hessian fly (Mayetiola [Cecidomyia] destructor Say). By F. M. 
Webster. pp. 16, figs. 16. April 14, 1906. 
No. 71. (Revision of Circular No. 35.) House flies (JJusca domestica et al.). 
By L. O. Howard. pp. 9, figs. 9. March 27, 1906. Out of print. 
Same, revised edition. pp. 10, figs. 9. September 21, 1906. 
No. 72. Key to the known larve of the mosquitoes of the United States. By 
Harrison G. Dyar. pp. 6, fig. 1. April 27, 1906. 
No. 73. The plum cureulio (Conotrachelus nenuphar Herbst). By Fred John- 
son and A. A. Girault. pp. 10, figs. 5. April 14, 1906. 
No. 74. The periodical cicada in 1906. By C. L. Marlatt.. pp. 5, figs. 3. April 
16, 1906. 
No. 75. Requirements to be complied with by nurserymen or others who make 
interstate shipments of nursery stock. By A. F. Burgess. pp. 6. July 5, 
1906. 
No. 76. List of publications of the Bureau of Entomology. Compiled by Mabel 
Colcord. pp. 21. September 24, 1906. 
Same, revised to March 1, 1908. pp. 28. ; 
No. 77. Harvest mites, or ‘“ chiggers.’ By F. H. Chittenden. pp. 6, figs. 3. 
September 29, 1906. 
No. 78. The slender seed-corn ground-beetle (Clivina impressifrons Lee.). By 
F. M. Webster. pp. 5, figs. 2. October 4, 1906. 
No. 79. The brood diseases of bees. By E. F. Phillips. pp. 5. October 38, 1906. 
No. 80. The melon aphis (Aphis gossypii Gloyv.). By F. H. Chittenden. pp. 16, 
figs. 6. November 14, 1906. 
No. 81. The aphides affecting the apple. By A. L. Quaintance. pp. 10, figs. 8. 
Issued March 9, 1907. 
No. 82. Pinhole injury to girdled cypress in the South Atlantic and Gulf 
States. By A. D. Hopkins. pp. 4, fig. 1. Issued January 2, 1907. 
No. 88. The locust borer [Cyllene robinie Forst.| and methods for its con- 
trol. By A. D. Hopkins. pp. 8, figs. 4. Issued February 19, 1907. 
No. 84. The grasshopper problem and alfalfa culture. By F. M. Webster. 
pp. 10, figs. 8. Issued April 6, 1907. 
No. 85. The spring grain-aphis (Toxroptera graminum Rond.). By F. M. 
Webster. pp. 7, figs. 3. Issued March 29, 1907. 
No. S86. The corn leaf-aphis [Aphis maidis Fitch] and corn root-aphis [Aphis 
maidi-radicis Forbes]. By F. M. Webster. pp. 13, figs. 4. Issued May 6, 
1907. 
No. 87. The Colorado potato beetle (Leptinotarsa decemlineata Say). By F. 
H. Chittenden. pp. 15, figs. 6. Issued June 38, 1907. 
No. 88. The terrapin scale (Hulecanium nigrofasciatum Pergande.). By J. G. 
Sanders. pp. 4, figs. 8. Issued May 14, 1907. 
No. 89. The periodical cicada in 1907 (Tibicen septendecim 1; race tredecim 
Walsh-Riley). By C. L. Marlatt. pp. 4, figs. 3. Issued May 14, 1907. 
No. 90. The white-pine weevil [Pissodes strobi Peck]. By A. D. Hopkins. 
pp. 8, figs. 6. Issued June 18, 1907. 
{Cir. 76] 
