New Ptiliidae (Coleoptera) from Sarawak in the spirit collection of the Natural History Museum, London Author Darby, Michael Department of Life Sciences, Natural History Museum, London, SW 7 5 BD UK. m.darby@nhm.ac.uk text European Journal of Taxonomy 2019 2019-04-04 512 1 50 journal article 27392 10.5852/ejt.2019.512 85c6241d-5e5a-4022-945f-e207d31458ef 2118-9773 2628794 urn:lsid:zoobank.org:pub:8DF89CFD-A549-4C69-8FBC-90EC8DEA9A66 Genus Ptinella Motschulsky, 1844 Widespread genus of small and fragile species associated with saproxylic habitats. Dimorphism is a common feature, the dominant form ( aptera ) being characterised by being depigmented, blind or with reduced eyes and apterous. Normal individuals ( alata ) are usually more pigmented, often have less truncate elytra and possess eyes and wings.