Figure 14 from: Brassard F, Leong C-M, Chan H-H, Guénard B (2020) A new subterranean species and an updated checklist of Strumigenys (Hymenoptera, Formicidae) from Macao SAR, China, with a key to species of the Greater Bay Area. ZooKeys 970: 63-116. https://doi.org/10.3897/zookeys.970.54958

Figure 14 Examples of short, not kinetic, mandibles in S. elegantula (A MAC_S04_LLSP_sp.9, photograph by IBBL), relatively long and kinetic in S. feae (B MAC_S15_LLSP_sp.8, photograph by IBBL), curvilinear and kinetic in S. emmae (C MAC_S20_LLSP_sp.7, photograph by IBBL), and with outer margin flared outwards near base and with strongly projecting basal angle in S. sydorata (D RHL003404, photograph by IBBL).