No. 1. The North American Bees of the Genus Osmia (Hymenoptera: Apoidea), by Grace A. Sandhouse. 167 pp. 1939

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No. 2. A Classification of Larvae and Adults of the Genus Phyllophaga (Coleoptera: Scarabaeidae ) by Adam G. Böving. 96 pp. 1942
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No. 17. Contributions on Hymenoptera and Associated Insects, Dedicated to Karl V. Krombein, edited by B. B. Norden and A.S. Menke. 216 pp. 1996
$25.00
No. 23. Revision of the Net-Winged Midges of the Genus Blepharicera Macquart (Diptera: Blephariceridae) of Eastern North America, by Gregory W. Courtney. 99 pp. 2000
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No. 22. Systematics of the North American Species of Trichogramma Westwood (Hymenoptera: Trichogrammatidae), by John D. Pinto. 287 pp. 1999
$28.00
No. 15. A Revision of the Genus Cerafopogon Meigen (Diptera: Ceratopogonidae), by A. Borkent and W. L. Grogan, Jr. 198 pp. 1995
$25.00