Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia.

v. 22 (1911)

Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia.

v. 9 (1898)

Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia.

v. 33 (1922)

Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia.

v. 18 (1907)

Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia.

v. 34 (1923)

Entomological news.

v. 44-45 1933

Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia.

v. 5 (1894)

Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia.

v. 25 (1914)

Entomological news.

v. 39-40 1928

Entomological news.

v. 42-43 1931

Entomological news.

v. 37-38 1926-1927

Entomological news.

v. 74 1963

Entomological news.

v. 72 1961

Entomological news.

v. 84 1973

Entomological news.

v. 104-105 1993