1887. The Entomological Writings of Dr. Alpheus Spring Packard. U. S. Dept. of Agr., Div. Ent., Bull. No. 16. pp. 49.

Biological observations.

1889-96. Bibliography of the More Important Contributions to American Economic Entomology, Parts I-V, and index. U. S. Dept. of Agr., Div. Ent.

Hubbard, H. G.

1885. Insects Affecting the Orange. U. S. Dept. Agr., Div. Ent. pp. 227.

Johannsen, O. A.

1903, 1905. Aquatic Nematocerous Diptera. N. Y. State Mus., Bull. No. 68, pp. 328-448; Bull. No. 86, pp. 76-327.

Immature stages of several families are rather fully treated and valuable references on life histories given.

MacGillivray, A. D.

1903. Aquatic Chrysomelidæ and a Table of the Families of Coleopterous Larvæ. Bull. No. 68, N. Y. State Mus., pp. 288-331.