FIGURE 6 in Additions to the taxonomy of Gnamptogenys Roger (Hymenoptera: Formicidae Ectatomminae) with an updated key to the New World species

FIGURE 6. Dorsal view of head, showing A) transverse costulae extending across the width of the vertex (G. gracilis— CASENT0281525); B) vertex without transverse costulae (G. illimani—CASENT0179988); C) transverse costulae limited to the center of the vertex (G. pittieri—CASENT0281218); and D) transverse costulae not extending all across the vertex (G. porcata—CASENT0281222). Photos by Zach Lieberman (A), Erin Prado (B) and Estella Ortega (C, D), available from www. antweb.org.