This bee's nest architecture is described by Sakagami and Michener (1962) as Paragapostemon mutabilis: Nest architecture is Type II: Lateral burrows branch off from the main burrow. These lateral burrows contain cells constructed in series, such that each blocks the one previously constructed. Banks are the only known substrate used for nesting. Nests, but not cells, are re-used by subsequent generations. Number of females in the nest: 10
