Rediscovery of the social wasp Mischocyttarus (Kappa) tapuya Schulz, with description of the female, larva and nest (Vespidae, Polistinae).

Mischocyttarus tapuya was originally described from a single male specimen collected in a forest near Belm, state of Par, Brazil, in the year of 1893, and had never been found again. We recently collected a colony of this species in an urban forest locality near Belm, and here describe the previously unknown female, mature larva, and nest of this social wasp.