Figures 1-4 from: Paulsen M, Hawks D (2014) A review of the primary types of the Hawaiian stag beetle genus Apterocyclus Waterhouse (Coleoptera, Lucanidae, Lucaninae), with the description of a new species. ZooKeys 433: 77-88. https://doi.org/10.3897/zookeys.433.8022

Figures 1-4 - Primary types of Apterocyclus honoluluensis and its synonyms, with labels. 1 Apterocyclus honoluluensis Waterhouse, lectotype 2 Apterocyclus deceptor Sharp, holotype 3 Apterocyclus feminalis Sharp, holotype 4 Apterocyclus varians Sharp, holotype.