Biosystematic studies of Ceylonese wasps, XVII : a revision of Sri Lankan and South Indian Bembix Fabricius (Hymenoptera : Sphecoidea : Nyssonidae) / Karl V. Krombein and J. van der Vecht.
By: Krombein, Karl V.
Contributor(s): Vecht, J. van der (Jacobus) Vecht, J. van der (Jacobus).
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