Seven nests were observed in dead wood near ground level.
One nest was observed in a dead log, 10-20cm dia, suspended horizontally about 1m high. The log was largely solid but waterlogged throughout. The outer layers were wet and slimy with many worms. The Pheidole colony was in small chambers in a soft rotten area, about 1cm below the upper surface. The soft area was thoroughly excavated, and no more of the nest was found, so this collection probably contained most or all of the colony.
Nests may occur in live stems. Two nests were observed in internodes of Cecropia insignis saplings. In one case the colony was polydomous. Two nests were observed in live stems of Myriocarpa along streams. A nest was observed in a live branch (identity unknown) in a fresh treefall. The nest was in a discrete hollowed-out area; the stem was solid elsewhere. There were no Homoptera on the walls of the nest. There was a seed cache in the nest chamber.
Taxonomic history
See also: Wilson, 2003a: 777.Senior synonym of Pheidole arietans: Longino, 2009 PDF: 86.Senior synonym of Pheidole glyphoderma: Longino, 2009 PDF: 86.Senior synonym of Pheidole triumbonata: Longino, 2009 PDF: 86.
