Nylanderia usul Williams et al., 2025: 584, figs. 62-70 (w.q.m.) COSTA RICA. Neotropic.

Primary type information: Primary type material: holotype worker. Primary type locality: Costa Rica: San José, 11km SSE Santa María, 9.55301 -83.94523 ±10m, elev. 1950m, 24.vi.2015, cloud forest, sifted litter, ADMAC#Wa-E-04-1-49. Primary type depository: USNM. Primary type specimen: USNMENT01131798. Secondary type information: Secondary type material: 5 paratype workers, 1 paratype queen, 1 paratype male. Secondary type locality: same as for holotype. Secondary type depositories: MNCR, USNM. Secondary type specimens: USNMENT01131109, USNMENT01131799, USNMENT01131800, USNMENT01131802, USNMENT01131804, USNMENT01131819, USNMENT01131831.