Guido Sabatinelli
Revue suisse de Zoologie 127 (1), 157-181, (4 June 2020) https://doi.org/10.35929/RSZ.0014
KEYWORDS: morphology, systematics, taxonomy, geographic distribution, India, Nepal, China, Asia, Himalaya, Thailand, Laos, Cambodia, Vietnam, Arthropoda, Insecta, Scarabaeidae
This work presents a revision of Cyphochilus species characterized by smooth elytra and mesocoxae separated by armed mesosternum. The type material was examined and compared to more than 500 specimens from historical collections as well as recently collected ones. Lectotypes are designated for Melolontha candidaOlivier, 1789, Cyphochilus cylindricus Brenske, 1903, C. flavomarginatusFrey, 1971, C. peninsularisArrow, 1938, C. pygidialisNonfried, 1893, C. pygidialis v. angeriNonfried, 1893, C. septentrionalisWaterhouse, 1867, C. testaceipesFairmaire, 1902, C. tricolorWaterhouse, 1867, and C. vestitusSharp, 1876. Cyphochilus septentrionalis is resurrected from synonymy (name rest.) and the following synonymies are established: C. pygidialisNonfried, 1893 = C. septentrionalissyn. nov., C. cylindricus = C. proximusSharp, 1876syn. nov., C. vestitus = C. tricolorsyn. nov.Cyphochilus testaceipes is transferred to DasylepidaMoser, 1913 as Dasylepida testaceipes (Fairmaire, 1902) comb. nov.Cyphochilus candidus, C. carinchebanusBrenske, 1903, C. feaeBrenske, 1903, C. flavomarginatus, C. obscurusSharp, 1876, and C. peninsularis are confirmed valid species, redescribed, and their distribution updated. Ten new species are described: Cyphochilus gandhiin. sp., from NE India, C. hmongn. sp., from Laos, C. leducthoin. sp., from Vietnam, C. orbachin. sp., from Vietnam, C. reichenbachin. sp., from Vietnam, C. rohingyaen. sp., from West Malaysia, C. sansuukyiin. sp., from Myanmar, C. satyarthiin. sp., from Sikkim and West Bengal, C. tenzingyatsoin. sp., from Tibet, and C. zuercherin. sp., from Thailand and Myanmar. The parameres of the 19 species treated are illustrated in three projections. A checklist of the resulting 38 valid species of Cyphochilus is provided with their distribution.