Four new species of the genus Miridiba Reitter (Coleoptera: Scarabaeidae: Melolonthinae) from China Author Gao, Chuan-Bu Author Bai, Ming Author Fang, Hong Author Yu, Zhi-Guo text Zootaxa 2018 2018-12-04 4527 1 1 20 journal article 27872 10.11646/zootaxa.4527.1.1 088bbc78-ee77-4fc8-b487-1e061da8009a 1175-5326 2611889 71CB1CF8-CC28-4D9B-BF30-7FE197E432A1 Miridiba ( Miridiba ) obscura Itoh, 1995 stat. nov. ( Figs. 5 a–c, 6) Miridiba tuberculipennis obscura Itoh, 1995 : 199 . Type locality. “Doi Suthep” (= Thailand : Doi Suthep ) . Type material examined. Paratype , male, labelled: “Doi mae Salong / near Chiang mai / N. Thailand / 21-?- 1992 / K. Kawano leg. [handwritten] // Paratype ♂ / Miridiba / tuberculipennis / obscura T. ITOH / 1995 [typeset]”, deposited in MFNB ; paratype , female: “ Doi suthap / near Chiang mai / N. Thailand / 3-V-1988 / Y. Kuwahara leg. [handwritten] // Paratype ♀ / Miridiba / tuberculipennis / obscura T. ITOH / 1995 [typeset]”, deposited in MFNB . Additional material examined. Male, labelled: “ Yunnan , Xishuangbanna, Menghun / 1200 m / Chinese Academy of Sciences [typeset, Chinese] // 1958-V-11 / Collector Xuwu Meng [typeset, Chinese] // Miridiba obscura Itoh, 1995 / Chuanbu Gao det. 2018 [handwritten]”, deposited in IZCAS; 3 males and 3 females : “ Yunnan , Menghai / Chinese Academy of Sciences [typeset, Chinese ] // 1982 / Collector Binjia Lin [handwritten, Chinese ] / / Miridiba obscura Itoh, 1995 / Chuanbu Gao det. 2018 [handwritten]”, deposited in IZCAS ; female: “39-14 / Yunnan , Yangbi [handwritten, Chinese ] // Miridiba obscura Itoh, 1995 / Chuanbu Gao det. 2018 [handwritten]”, deposited in IZCAS ; male: “ Yunnan , Nangunhe Nature Reserve , Gengma , Furong / Xiaochen Zhang 126a / 2007- 6-10 / NWAFU [handwritten, Chinese ] // Miridiba obscura Itoh, 1995 / Chuanbu Gao det. 2018 [handwritten]”, deposited in NWAFU ; female: “ Yunnan, Nan Gunhe Nature Reserve , Gengma , Furong / Chong Wei 126a / 2007-7- 10 / NWAFU [handwritten, Chinese ] // Miridiba obscura Itoh, 1995 / Chuanbu Gao det. 2018 [handwritten]”, deposited in NWAFU . Distribution. China ( Yunnan ) ( Fig. 6 ), Thailand , Laos ( Itoh 1995 ). Remarks. Newly recorded for China . One female of M. ( M .) tuberculipennis obscura Itoh, 1995 and one male of M. ( M .) tuberculipennis Fairmaire, 1891 were collected in the same place Yangbi County of Yunnan province (see additional material examined). We therefore propose that M. ( M .) tuberculipennis obscura should be elevated to species status as M. ( M .) obscura Itoh, 1995 . The two species can be separated by the shape of the clypeus (moderately bilobate in M . ( M .) tuberculipennis while arcuate in M. ( M .) obscura ), and by the shape of the dorsal and ventral branches of the parameres (thin in M. ( M .) tuberculipennis while thick and expanded in M. ( M .) obscura ) ( Figs. 5a ̄f).