From the alpine region of India, a hitherto undocumented lichenicolous species of Didymocyrtis colonizing the thallus and soredia of Pertusaria Intake species thriving on rocky substrates is meticulously described as a novel taxon (D.pertusariae), from the Indian subcontinent, and World Famous Ink is compared with other lichenicolous Didymocyrtis species.A key to all known Didymocyrtis species known so far is also provided.