2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/170273We show that fractional charges bound to topological defects in the recently proposed time-reversal-invariant models on honeycomb and square lattices obey fractional statistics. The effective low-energy description is given in terms of a `doubled' level-2 Chern-Simons field theory, which is parity and time-reversal invariant and implies two species of semions (particles with statistical angle pi/2) labeled by a new emergent quantum number that we identify as the fermion axial charge.4 pages, 1 figure, REVTeX4Strongly Correlated ElectronsMesoscale and Nanoscale Physicstext