M. becarri do not manifest any aggressive reactions when nest is disturbed. The nest entrance is
mostly guarded by 3-5 bees which are positioned slightly underneath the opening and retreats
when ever a foraging bee is leaving or entering the nest. When the nests were excavated and
opened, some of the bees left and flew around the nest and in its closed vicinity but did not
exhibit any form of aggressive reactions. Bees begin a kind of absconding when forced to live in
artificial nest. A few weeks after introduction into an artificial nest, all bees disappeared
together with the queen. From close observation of the excavated nest, it is possible that M.
becarri build their entrance tube and cavity. The gyne cells are almost 3-4 times the normal cells.