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

v. 31 (1920)

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

v. 16 (1905)

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

v. 28 (1917)

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

v. 13 (1902)

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

v. 26 (1915)

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

v. 29 (1918)

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

v. 10 (1899)

Entomological news.

v. 48-49 1937

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

v. 7 (1896)

Entomological news.

v. 56-57 1945

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

v. 6 (1895)

Entomological news.

v. 60-61 1949

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

v. 24 (1913)

Entomological news.

v. 54-55 1943

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

v. 11 (1900)