Revision of the genus Cyrtolabulus van der Vecht in Madagascar (Hymenoptera: Vespidae: Eumeninae).

ABSTRACT

The species of the genus Cyrtolabulus van der Vecht, 1969 occurring in Madagascar are revised, with the description of three new species Cyrtolabulus flavorufus sp. nov., Cyrtolabulus parvulus sp. nov. and Cyrtolabulus scrobalis sp. nov. Pseudonortonia madacassa Gusenleitner, 2012 is synonymized under Cyrtolabulus suboscurus (Giordani Soika, 1941) syn. nov., and a neotype is designated for Labus bekilyensis Giordani Soika, 1941. A comparison with the closely related genus Cyrteumenes Giordani Soika, 1991 and a key to the species are provided.