title: A new earwig of the genusEchinosomafrom Penang Island, Peninsular Malaysia, with notes on the taxonomic and nomenclatural problems of the genusCranopygia(Insecta, Dermaptera, Pygidicranidae).
abstract: The pygidicranid earwigs (Dermaptera) of Penang Island, Peninsular Malaysia were re-examined based on material collected in extensive field surveys in 2012-2013 and 2015.Echinosoma roseiventreKamimura & Nishikawa,sp. n.is described and illustrated, andCranopygia pallidipennis(de Haan, 1842) is reported from the island for the first time. The taxonomic and nomenclatural problems of the genusCranopygiasensuHincks (1959) [A Systematic Monograph of the Dermaptera of the World. Part II. Pygidicranidae excluding Diplatyinae. British Museum (Natural History)] are also discussed. For the members of the subfamily Pygidicraninae from Indo-Austral and Oriental regions, the system, definitions of genera, and key of Hincks (1959) are followed. The genusMucrocranopygiaSteinmann, 1986 is synonymized withCranopygiaBurr, 1908. A key to the males of smallEchinosomafrom the Oriental region is provided.
authors.affiliation: Department of Biology, Keio University, 4-1-1 Hiyoshi, Yokohama 223-8521, Japan; Urban Entomology Laboratory, Vector Control Research Unit, School of Biological Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia.
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Kamimura
authors.affiliation: Entomological Laboratory, Faculty of Agriculture, Ehime University, Matsuyama, 790-8566, Japan.
authors.forename: Masaru
authors.initials: M
authors.lastname: Nishikawa
authors.affiliation: Urban Entomology Laboratory, Vector Control Research Unit, School of Biological Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia.
authors.forename: Chow-Yang
authors.initials: CY
authors.lastname: Lee
keywords: Cranopygia pallidipennis; Cranopygia similis; Echinosoma roseiventre; south-east Asia