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Hall, H. G.; Avila, L. Megachile Sculpturalis, the Giant Resin Bee, Overcomes the Blossom Structure of Sunn Hemp (Crotalaria Juncea) That Impedes Pollination. J. Melittol. 2016, No. 65, 1-11. https://doi.org/10.17161/jom.v0i65.5887.