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Abstract
A cladistic analysis of the swarm‐founding neotropical social wasp genus Charterginus is presented. A single cladogram resulted from the analysis of 31 morphological characters and six nest characters, with relationships among the species as follows: ((C. fulvus + C. xanthura) + (C. weyrauchi + (C. nevermanni + (C. carinatus + C. zavattarii)))). The monophyly of the genus is confirmed and a new identification key is presented. Notes on the nest are given and the misidentification of C. carinatus is explained.
Acknowledgements
We thank Gavin Broad (BMNH) for the loan and valuable information about the series of C. zavattarii; Kurt Pickett for assistance at AMNH during S.R.A.'s visit and for double checking C. zavattarii at the BMNH; Ronaldo Zucchi for facilities at FFCLRP‐USP and Sidnei Mateus for fieldwork assistance in Brazil. This work was supported by grants from Fundação de Amparo à Pesquisa do Estado de São Paulo (grants 01/02491‐4, 04/01117‐0 and 07/08633‐1) to S.R.A. and F.B.N.; Conselho Nacional de Desenvolvimento Científico e Tecnológico (PhD fellowship) and Collection Study Grant Program (AMNH) to S.R.A. The TNT program was made available with the sponsorship of the Willi Hennig Society.