The puparium of Chlamydonotum nigreradiatum Lindner was described based on twelve puparia derived from twelve larvae collected under the bark of fallen tree on initial period of decomposition at Ilha da Marambaia (23º04'15"S - 43º53'59"W, sea level), Rio de Janeiro State, Brazil. These puparia were compared with other puparia once described of other species of Pachygastrinae, with regard to external morphology and chaetotaxy.
Neotropical; taxonomy; decomposition
