BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
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Thomas, C. Eleventh report of the State entomologist on the 
noxious and beneficial insects of the State of Illinois.—Sixth 
annual report by Cyrus Thomas. <Trans. Dept. Agric. State 
of Illinois for 1881, 1882, n. s., v. 11, 104+2 pp. Separate: 
<SpringfieId, Ill., 1882, 104+2 pp. 
CONTENTS. 
Page. 
Letter of transmittal. 3 
Report of D. W. Coquillett. 5 
The greater leaf-roller, Lozotcenia [= Caccecia] rosaceana . 10 
The apple-bud worm, Eccopsts malana .. 16 
The apple worm, Carpocapsa pomonella . 19 
The currant-fruit worm, Eupitliecia inter ruptofasciata . 23 
The yellow cankerworm, Hibernia tiliaria. . 25 
The imported cabbage worm, Pieris rupee . 32 
The celery worm, Plusia simplex . 38 
The eorn Myriapod, Julua [= Parajulus\ impressus . 44 
The imported currant worm, Nematus ventricosus [=ri5esii]. 46 
The army worm, Leucania unipuncta . 49 
Report of G. H. French. 65 
The corn-root worm, IHabrotica longicornis . 65 
The wheat-straw worm, Isosoma allynii . 73 
The corn worm or boll worm, Heliotliis armiger . 82 
General index. 1 
Thomas, C. Best means of counteracting insect foes. <Trans. 
Illinois State Hortie. Soc. for 1881, 1882, n. s., v. 15, pp. 39-46. 
Means against destructive insects, especially Blissus leucopterus, Cecidomyia 
destructor, and injurious cabbage and orchard pests. 
Thomas, C. Best means of counteracting our insect foes. <Trans. 
Indiana Hortie. Soc. 1881, 1882, v. 20, pp. 81-82. 
Means against Cecidomyia destructor; remedies for various insects. 
Thomas, David. Some account of the Chrysomela vitivora. 
<Amer. Journ. Sci. and Arts, 1834, v. 26, pp. 113-114. 
Characters, habits, and natural history of Chrysomela vitivora [=Haltica 
clialybea ]; injuries. 
Thomas, D. Destroying insects. <Horticulturist, October, 1846, 
v. 1, p. 108. 
Advocates the use of sweetened water among fruit trees. 
Thomas, II. M. Insects injurious to the horticulturist. <Trans. 
Wisconsin State Hortie. Soc., 1873, pp. 110-120. 
Ravages of and means against caukerworms; their distribution; importance 
of economic entomology. 
Thomas, John J. The diseases and insects injurious to the wheat 
crop. <Trans. N. Y. State Agric. Soc. for 1843, 1844, v. 3, pp. 
201-216, figs. 1-3. 
Injuries of the grain worm, wheat weevil, and Hessian fly. 
Thomas, J. J. Diseases and enemies of the plum. <4tli Ann. 
Kept. Secy. State Pomol. Soc. Mich. 1S74, 1875, pp. 35-36. 
Means against Conotrachelus nenuphar. 
