Review of the Orphninae (Coleoptera: Scarabaeidae) of Sri Lanka, with description of a new species of genus Orphnus Macleay, 1819 Author Frolov, Andrey V. 5DEE612B-4252-4DB0-AD5E-BAA789A3C355 Laboratory of Insect Systematics, Zoological Institute, Russian Academy of Sciences, Universitetskaya nab., 1, St. - Petersburg, 199034 Russia. frolov@scarabaeoidea.com Author Akhmetova, Lilia A. BA35DDDD-6E6A-47A4-AB73-965EB4A92CC3 Laboratory of Insect Systematics, Zoological Institute, Russian Academy of Sciences, Universitetskaya nab., 1, St. - Petersburg, 199034 Russia. akhmetova@scarabaeoidea.com text European Journal of Taxonomy 2021 2021-09-06 767 1 40 54 http://dx.doi.org/10.5852/ejt.2021.767.1485 journal article 4209 10.5852/ejt.2021.767.1485 66e2d72d-ad54-494d-80e6-56b6020ef450 2118-9773 5514853 9B651F61-7F2B-4D46-9390-4F54F8AEB0AE Orphnus bicolor ( Fabricius, 1801 ) Fig. 4 Scarabaeus bicolor Fabricius, 1801: 9 . Orphnus bicolor – MacLeay 1819: 119 . — Westwood 1845: 176 . — Lacordaire 1856: 130 (catalogue). — Gemminger & Harold 1869: 1072 (catalogue). — Arrow 1912: 29 (catalogue). — Schmidt 1913: 79 (catalogue). — Frolov 2012: 793 (catalogue). Differential diagnosis Orphnus bicolor is similar to O. parvus in having the pronotum without tubercle on base medially and endophallus with a few groups of spinules. It differs from the latter in having the parameres in dorsal view with small but distinct notches basad of the lateral teeth ( Fig. 4F ), longer parameres (about 0.7 length of phallobase [ Fig. 4E ] as opposed to 0.5 length of phallobase in O. parvus [ Fig. 5E ]), and abdominal sternite 8 medially longer than sternites 4–7 combined (as opposed to sternite 8 medially as long as sternites 4–7 combined in O. parvus ). Type material Lectotype (here designated, Fig. 4 A – F ) INDIA • ♂ ; “ TYPE / Ind. orient. Daldorff Mus. T. Lund Geotrupes bicolor F. / Lectotype Geotrupes bicolor F. A.Frolov des. 2016”; ZMUKG . Paralectotype INDIA • 1 ♂ ; “ TYPE / Paralectotype Geotrupes bicolor F. A.Frolov des. 2016”; ZMUKG . Additional material examined SRI LANKA – Central Province • 1 ♂ ; Weragamtota ; 7°19′ N , 80°59′ E ; 13 Sep. 1953 ; F. Keiser leg.; NHMB . – Southern Province • 1 ♂ , 1 ♀ ; Tissamaharana ; 6°17′ N , 81°17′ E ; 30 Oct. 1983 ; MNHN . Variation Body length of the examined specimens varies from 7.5 to 9.0 mm (males) and 8.6 mm (female). Distribution The species was described form “East India ”. In Sri Lanka , it is known from two rather distant localities in the centre and on the southern coast ( Fig. 4I ).