Redescription of Chrysidea pumiloides Zimmermann, 1956, and description of three new species of Chrysidea from Madagascar (Hymenoptera: Chrysididae)

Chrysidea pumiloides Zimmermann, 1956 and its Malagasy allies are taxonomically revised. As a result, C. pumiloides and C. phoebe Zimmermann, 1956 are redescribed; two new species, C. vazimba sp. nov. and C. merina sp. nov., are described from museum collections, and another new species, C. rioae sp. nov., is described based on a male recently collected in Southern Madagascar, at Berenty Reserve. The habitus of the holotypes and the male genitalia are illustrated and the key to Malagasy Chrysidea Bischoff, 1913 is updated.