Comparative behavior of bees and Onagraceae: III. Oenothera bees of the Mojave desert, California

Taxonomy of North American Flies of the genus Limnia (Diptera: Sciomyzidae)

Steyskal, G.C.; Fisher, T.W.; Knutson, L.; Orth, R.E.

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Revision of Actium Casey and Actiates Casey (Coleoptera: Pselaphidae)

Grigarick, A.A.; Schuster, R.O.

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Bees of the New Genus Ctenoceratina in Africa South of the Sahara (Hymonoptera:

Daly, H.V.

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A Review of the North and Central Amerian Species of Paravilla Painter

Hall, J.C.

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The Bombyliidae of Chile (Diptera: Bombyliidae)

Hall, J.C.

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The Social Wasps of the Americas excluding the Vespinae

Richards, O.W.

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A History of the Hope Entomological Collections in the University Museum Oxford

Smith, A.Z.

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Biological Systematics: The state of the art

Minelli, A.

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Butterflies and Late Loves The Further Travels of a Victorian Lady

Fountaine, M.

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Genesis of the Hymenoptera and the Phases of their Evolution

Malyshev, S.I.

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Handbook of Wildflowers of Israel: Mediterranean Flora [and Desert Flora]

Shmida, A.

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Hymenoptera: The Natural History and Diversity of Wasps, Bees and Ants

Marshall, S.A.

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Solitary Bees (New Naturalist 146 )

Benton, T.; Owens, N.

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Solitary Bees (New Naturalist 146 )

Benton, T.; Owens, N.

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Wasps of the World: A Guide to Every Family

van Noort, S.; Broad, G.

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Pocket Guide to the Bumblebees of Great Britain and Ireland

Lewington, R.

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Bumblebees of Europe. Hymenoptera of Europe 3

Rasmont, P.; Ghisbain, G.; Terzo, M.

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