Lasioloma krishnasinghii, a new foliicolous lichen is described from the Andaman and Nicobar Islands, India. It is characterized by 8-spored asci, cylindrical, 11-15-septate, 61-80 × 7-9 μm ascospores, and filiform, centrally branched, 61-91 × 2-3.5 μm conidia.