Contributions to a Knowledge of the Hymenoptera of Brazil, No. 7: Eumenidæ (Genera Zethus, Labus, Zethoides, Eumenes, Montezumia and Nortonia)

William J Fox

Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1899, in volume 51, pages 407-432

Date published:1899

BHL: 6389592
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