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Volume 2010, Article ID 410280, 8 pages
Research Article

Morphological Caste Differences in Three Species of the Neotropical Genus Clypearia (Hymenoptera: Polistinae: Epiponini)

1Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, 14040-901 Ribeirão Preto, SP, Brazil
2Departamento de Botânica e Zoologia, Instituto de Biociências, Letras e Ciências Exatas, UNESP, Rua Cristovão Colombo, 2265, 15054-000 São José do Rio Preto, SP, Brazil

Received 12 February 2010; Accepted 29 April 2010

Academic Editor: James Traniello

Copyright © 2010 Giovanna Tocchini Felippotti et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Clypearia is a rare genus of swarm-founding Neotropical wasp whose biology is very little known. Morphological castes differences, condition of ovaries, relative age, and color pattern differences were analyzed in three species of Clypearia. Physiological differences and low morphometric differentiation between queens and workers were present in all species studied, indicating that these species are characterized by “physiological caste only”. We suggest that caste determination in the three Clypearia species studied is postimaginal.