Effect of a foreign male’s age on acceptance into a conspecific colony in a Neotropical wasp

We conducted field experiments to examine whether young males of different age cohorts were accepted from alien colonies in the swarm‐founding wasp Polybia paulista . We showed, as for young females in other social wasp species, that newly emerged males were frequently accepted from alien colonies. Our study suggests that young males of P .  paulista acquire colony‐specific chemical odors shortly after emergence.