The structure of perovskite-type La0.95Sr0.05Ga0.95Mn0.05O3-x crystals has been investigated using high-resolution X-ray powder diffraction technique in the temperature range of 298-1173 K. A transition from orthorhombic (Pbnm) to rhombohedral (R (3) over barc) phase has been detected near 340 K. A chevron-like configuration of ferroelastic domain structure was observed in rhombohedral La0.95Sr0.05Ga0.95Mn0.05O3-x crystal using the Laue technique. The chevron-like pattern is formed by the intersection of W-type domain walls (211), (101) and (110) and demonstrates the reversibility of this domain wall structure configuration at thermal cycling through the phase transition point. (C) 2013 Elsevier B.V. All rights reserved.