  We report polariton lasing in localised gap states in a honeycomb lattice of
coupled micropillars. Localisation of the modes is induced by the optical
potential created by the excitation beam, requiring no additional engineering
of the otherwise homogeneous polariton lattice. The spatial shape of the gap
states arises from the interplay of the orbital angular momentum eigenmodes of
the cylindrical potential created by the excitation beam and the hexagonal
symmetry of the underlying lattice. Our results provide insights into the
engineering of defect states in two-dimensional lattices.
