A sauva do Nordeste, Atta opaciceps Borgmeier, 1939 em areas de pastagem do Ceara, 1: analise preliminar da arquitetura externa [Brasil]
The Northeast leaf-cutting ant, Atta opaciceps Borgmeier, 1939 in grazing lands in the state of Ceara, 1. Preliminary analysis of the external architecture [Brazil]