BIBLIOGRAPHY 
Cockerell, T. D. A.: 
1897. Bulletin 6, Technical Series, Bureau of Entomology, United States 
Department of Agriculture. Page 22. 
Comstock, J. H.: 
1881. Report on Scale Insects. 
In Report of United States Commissioner of Agriculture, 1881. 
Page 308. 
Original description. 
1883. Report on the Department of Entomology. 
In the Second Report of the Cornell University Experiment Sta¬ 
tion. Page 71. 
Notes its attacks on red maple at Washington, D. C. 
1916. Report of Scale Insects. 
Cornell University Experiment Station. Bulletin 372. Pages 457 
and 532. 
Reprints of the above papers. 
V 
Crayv, A.: 
1891. Report of the California Board of Horticulture. Page 11. 
Records Chrysomphalus tenebricosus Comstock as injuring apple 
trees at San Jose, California. 
Dietz, H. F., and Morrison, H.: 
1916. The Coccidse or Scale Insects of Indiana. 
In Eighth Annual Report of the Indiana State Entomologist. 
Do not record Chrysomphalus tenebricosus from Indiana. 
Herrick, G. W.: 
1911. Some Scale Insects of Mississippi. 
Technical Bulletin No. 2. Mississippi Agricultural Experiment 
Station. Page 34. 
Records the species as abundant in Mississippi on silver and red 
maple, and suggests that it should be placed in Leonardi’s genus 
Aonidiella. 
Leonardi, G.: 
1899. Riv. Pat. Veg. VII: 178. 
1900. Gen. e Spec. Diaspiti, Asp. Page 119. 
Lintner, J. A.: 
1896. Eleventh Annual Report of the State Entomologist. Page 221. 
Records the fact that Aspidiotus tenebricosus occurring on maple 
brings forth living young. 
Metcalf, Z. P.: 
1911. Test Sprayings for the Gloomy Scale (Chrysomphalus tenebricosus 
Comst.) Journal of Economic Entomology, IV:515-521. 
Packard, A. S.: 
1890. Insects Injurious to Forest and Shade Trees. 
In Fifth Report of the United States Entomological Commission. 
Page 417. 
Simply copies Comstock’s original description. 
Rolfs, P. H., and Quaintance, A. L.: 
1898. Coccidse americanae. 
Dec. I ll, No. 18. 
