We examined the thalli of members of the lichen genus Solenopsora (Leprocaulaceae) to learn more about their potential to host symptomatic lichenicolous fungi. Altogether, 600 specimens were screened, out of which 78 were infected by lichenicolous fungi. We identified eleven taxa of lichenicolous fungi Arthonia sp., Ceratobasidium bulbillifaciens, Cladosporium sp., Didymocyrtis cladoniicola, Lichenosticta sp., Merismatium cf. peregrinum, Muellerella lichenicola, Muellerella triseptata, Sphaerellothecium griseae, Stigmidium solenopsoricola, and Zwackhiomyces solenopsorae, out of which S. griseae and S. solenopsoricola are described here new for science. The ratio infected specimens/total inspected host specimens (LF/host ratio) is 0.13 for all examined samples. The highest value of LF/host ratio was recorded for Solenopsora grisea and S. holophaea, respectively (0.35 and 0.30). The greatest diversity of lichenicolous fungi was denoted for Solenopsora candicans and S. grisea. The most frequent lichenicolous fungus on S. candicans was Muellerella lichenicola (85 % of infected host specimens) and Sphaerellothecium griseae (23 % of infected host specimens) on S. grisea. Morphological features and taxonomical remarks on the examined specimens are given. Key words: biodiversity, Arthonia, Merismatium, Muellerella, Sphaerellothecium, Stigmidium, Mediterranean.