Xymmer, Santschi, 1914

Hamer, Matthew T., Gómez, Kiko & Jocque, Merlijn, 2025, A new Xymmer Santschi, 1914 (Formicidae: Amblyoponinae) species from the Congo Basin, with male and female descriptions of X. muticus (Santschi, 1914), Zootaxa 5647 (5), pp. 479-495 : 494

Key to known Xymmer species based on workers adapted from Satria et al., (2016)

1 Head narrow, distinctly longer than wide (CI 73.4) ( Figure 5C ); in full face view, lateral head margins subparallel ( Figure 5C ); anterior margin of clypeal lobe convex ( Figure 5C ). Smaller in size (HW <0.35)........................... X. paniscus

- Head subquadrate, just longer than wide (CI 83—86.5) ( Figure 1B ); lateral margins converging posteriorly ( Figure 1B ); anterior margin of clypeal lobe straight or concave ( Figure 1B ). Larger in size (HW> 0.5)................................. 2

2 Clypeal plate three times as broad as long; anterior margin of clypeal lobe straight ( Figure 1B )............... X. muticus

- Clypeal plate six times as long as broad; anterior margin of clypeal lobe concave............................ X. phungi

Figures

FIGURE 1. Xymmer muticus worker (RBINFOR1000801). A) Lateral view, B) Full face view, C) Dorsal view.

FIGURE 5. Holotype of Xymmer paniscus (RBINFOR1000800). A) Lateral view, B) Dorsal view, C) Full face view.