Non-allometric caste differences in Agelaia vicina (Hymenoptera, Vespidae, Epiponini)
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Non-allometric and clear-cut caste dimorphism were found in two colonies of the social wasp Agelaia vicina. Such type of allometry was previously recorded in the Epiponini and its origin is pre-imaginally determined as in the other analysed species which present caste dimorphism. Multivariate analyses evidenced that the most intercastes discriminant characters were found in the metasoma and mesosoma while head differences were slight. Although queens were characterized by marked ovary development and insemination, the presence of some uninseminated queens was detected in one of the analysed colonies.