Syscia transisthmica Longino & Branstetter, 2021: 38, figs. 12, S66-67 (w.q.) MEXICO (Oaxaca). Neotropic.

Primary type information: Primary type material: holotype worker. Primary type locality: Mexico: Oaxaca, Mirador Grande, 17.89844 -96.36253 ±503m, 990m, 14.viii.2009, montane tropical rainforest, ex sifted leaf litter, MGB1405 (M.G. Branstetter). Primary type depository: UNAM. Primary type specimen: CASENT0644006. Secondary type information: Secondary type material: paratype worker/s, paratype queen/s (numbers not stated). Secondary type locality: same as for holotype. Secondary type depository: CASC.