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Nests of Thygater aethiops

2, single nest in flat ground; note the tumulus around nest entrance. 3, cluster of nests in a barren, sloping surface; all nest entrances are encircled and one of them is indicated by an arrow. 4, an excavated nest showing the meandering main tunnel, indicated by a white solid line. 5, detailed view of a cell in saggital section; A, main tunnel; B, short laterals filled with loose soil after cell completion; C, whitish spiderweb-like layer, likely a mass of mold hyphae, found in most of excavated cells.

Photographer: Gonzalez Betancourt, Victor Hugo. Publisher: Gonzalez Betancourt, Victor Hugo.