Abstract
AbstractAn unusual nesting substrate of a subterranean halictine bee, Lasioglossum (Evylaeus) vulsum (Vachal), was found at Mt Ishizuchi‐san, Ehime, Japan. Two nests were obtained from a decaying log in a display sign for a local restaurant. Brood cells, forming a cell cluster, were constructed in a wood hollow with rotted wood fibers pressed together. Nests in the decaying log show the same structural elements as those made in soil. This is the first report of wood nesting by subterranean halictine bees belonging to the subgenus Evylaeus.
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