Taxonomy of Malagasy Nesomyrmex brevicornis species-group using conventional morphology-based approach

Diagnostic traits for black Nesomyrmex brevicornis-group workers. Lateral view of mesosoma, petiole, postpetiole, and gaster of N. flavigaster sp. n. (1), lateral view of mesosoma, petiole, postpetiole, and gaster of N. brunneus sp. n. (2), frontal view of head of N. edentatus sp. n. (3), frontal view of head of N. brevicornis sp. n. (4). For details see main text.