Figures 1-3 from: Laciny A, Zettel H, Druzhinina I (2016) Workers, soldiers, and gynes – morphometric characterization and description of the female castes of Camponotus singularis (Smith, 1858) (Hymenoptera, Formicidae). Deutsche Entomologische Zeitschrift 63(2): 183-193. https://doi.org/10.3897/dez.63.9435

Figures 1-3 - Camponotus singularis, head, frontal view, of (1) minor worker, (2) major worker, and (3) gyne. Notably different are head shape, development of posterior margin, and position of eyes. The minor has much longer scapes and maxillary palpi than the major.