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 parvus ( Wiedemann, 1823 ) Fig. 5 Geotrupes parvus Wiedemann, 1823: 6 . Orphnus nanus Westwood, 1845: 177 (synonymy by Arrow 1912 ). Orphnus parvus – Gemminger & Harold 1869: 1073 (catalogue). — Arrow 1912: 30 (catalogue). — Schmidt 1913: 80 (catalogue). — Frolov 2012: 794 (catalogue). Fig. 4. Orphnus bicolor ( Fabricius, 1801 ) . A–F . Lectotype, ♂ (ZMUKG). G–H . ♀ (MNHN). A–B , G–H . Habitus in dorsal view. C . Labels. D . Endophallus. E . Aedeagus in lateral view. F . Parameres in dorsal view. I . Distributional record map. Scale bars: A–B, G–H = 1.0 mm; D–F = 0.5 mm. Fig. 5. Orphnus parvus ( Wiedemann, 1823 ) . A–C . Lectotype, ♂ (ZMUKK). D–H . Lectotype of Orphnus nanus Westwood, 1845 , ♂ (ZMUKK). I . ♀ (MNHN). A–B, H–I . Habitus in dorsal view. C , E . Labels. D . Endophallus. F . Aedeagus in lateral view. G . Parameres in dorsal view. J . Distributional record map. Scale bars: A–B, H–I = 1.0 mm; D, F–G = 0.5 mm. Differential diagnosis Orphnus parvus is similar to O. bicolor in having the pronotum without a tubercle on base medially and endophallus with a few groups of spinules. It differs from the latter in having the parameres in dorsal view without notches basad of lateral teeth ( Fig. 5G ), shorter parameres (about 0.5 length of phallobase [ Fig. 5E ] as opposed to 0.7 length of phallobase in O. bicolor [ Fig. 4E ]), and abdominal sternite 8 medially as long as sternites 4–7 combined (as opposed to sternite 8 medially distinctly longer than sternites 4–7 combined in O. bicolor ). Type material of Geotrupes parvus Lectotype (here designated, Fig. 5 A – C ) INDIA • ♂ ; “Bengal Mai 1808 Parvus ♂ Wied. / Mus. Westerm. / TYPE ”; ZMUKK . Paralectotype INDIA • 1 ♂ ; “Mus. Westerm. / TYPE ”; ZMUKK . Type material of Orphnus nanus Lectotype (here designated, Fig. 5 D – H ) INDIA • 1 ♂ ; “ TYPE COL: 482 1/2 Orphnus nanus Westw. HOPE DEPT.OXFORD / Orphnus nanus Westw East Ind [...] Hearsey / TYPE WESTWOOD Trans. Ent. Soc. 4.1846.P.177 Coll. Hope Oxon. / […] / W / LECTOTYPUS Orphnus nanus Westw. Frolov et al. 2016 ”; ZMUKK . Paralectotype INDIA • 1♂ ;“ TYPE COL: 482 2/2 Orphnus nanus Westw. HOPE DEPT.OXFORD / TYPE WESTWOOD Trans. Ent. Soc. 4.1846.P.177 Coll. Hope Oxon. / Prof. Westwood’s private collection purchased from Miss Swann 1895 Collected by Gen. Hearsey in India / [9…H] / Orphnus nanus Westw ”; ZMUKK . Additional material examined SRI LANKA • Central Province – 2 ♂♂ ; Kandy ; 7°18′ N , 80°38′ E ; MHNG • 1 ♀ ; Peradenyia ; 7°16′ N , 80°35′ E ; MHNG • 1 ♂ , 1 ♀ ; same locality data as for preceding; Friederichs S.G. leg.; MNHB • 1 ♂ ; same locality data as for preceding; 3 Apr. 1907 ; O. John leg.; ZIN • 1 ♀ ; Sigiriya ; 7°57′ N , 80°45′ E ; Oct. 1977 ; MHNG • 2 ♀♀ ; Weragamtota ; 7°19′ N , 80°59′ E ; 13 Sep. 1953 ; F. Keiser leg.; NHMB . – North Central Province • 1 ♀ ; Anuradhapura ; 8°19′ N , 80°24′ E ; Friederichs S.G. leg.; MNHB • 1 ♂ ; Kala Oya ; 8°13′ N , 80°06′ E ; 7 Nov. 1983 ; MNHN • 1 ♀ ; same locality data as for preceding; 8 Nov. 1983 ; MNHN • 1 ♀ ; Vilpattu Nat. Park , Talawila ; 8°25′ N , 80°03′ E ; 9 Nov. 1983 ; G.S. Medvedev leg.; ZIN . – Southern Province • 1 ♀ ; 9 km SW of Yala ; 6°22′ N , 81°31′ E ; 21 Oct. 1982 ; V.F. Zaitzev leg.; ZIN • 8 ♂♂ ; Southern Province , Bentota ; 6°26′ N , 79°60′ E ; 23 Mar. 1973 ; G. Zimmermann leg.; MNHB • 1 ♂ ; Point de Galle ; 6°01′ N , 80°13′ E ; MHNG • 1 ♂ ; Tissamaharama ; 6°17′ N , 81°17′ E ; 8 Aug. 1978 ; P. Cabella leg.; MCSN • 2 ♂♂ , 2 ♀♀ ; same locality data as for preceding; 30 Oct. 1983 ; MNHN • 2 ♂♂ ; Yala ; 6°22′ N , 81°31′ E ; 21 Oct. 1982 ; G.S. Medvedev leg.; ZIN . – Western Province • 1 ♂ ; Colombo ; 6°56′ N , 79°51′ E ; Friederichs S.G. leg.; MNHB • 1 ♂ ; same locality data as for preceding; Mar. 1953 ; G. Frey leg.; MHNG • 1 ♂ , 1 ♀ ; Negombo ; 7°12′ N , 79°50′ E ; 23 Mar. 1973 ; B. Huttler leg.; NMPC • 1 ♀ ; Wadduwa ; 6°40′ N , 79°56′ E ; V. De Poll leg.; MNHN . – Sri Lanka (no exact locality) • 2 ♂♂ , 1 ♀ ; OUM • 1 ♀ ; MHNG • 1 ♂ ; MNHB • 1 ♂ ; Friederichs S.G. leg.; MNHB • 1 ♂ ; Parry leg.; IRSNB • 1 ♂ ; S. Niethner leg.; MNHB . Variation Body length of the examined specimens varies from 6.1 to 8.2 mm (males) and 6.0 to 7.5 mm (females). Distribution The species is distributed rather widely throughout Sri Lanka except for the north-eastern part ( Fig. 5J ).