Ptilium pernix, Taxa Only, Exact Match: 2 Treatments

Hypnales		new species	Darby, Michael, 2018, Studies of Ptiliidae (Coleoptera) in the Spirit Collection of the Natural History Museum, London, 3: New species and records from the expedition to SW Africa in 1971 - 1972, Entomologist's monthly magazine 154, No. 4, pp. 233-260 : 233-260	233-260
Ptilium pernix			Darby, Michael, 2019, Studies of Ptiliidae (Coleoptera) in the Spirit Collection of the Natural History Museum, London, 6: New species and records collected by W. C. Block in Kenya and Uganda, 1964 - 1965, Entomologist’s Monthly Magazine 155, pp. 239-257 : 242	242