Revision of the genus Miridiba Reitter, 1902 (Coleoptera, Scarabaeidae, Melolonthinae): genital morphotypes and new taxonomic data Author Gao, Chuan-bu D260A269-8B1F-41CE-AD17-703E2BBE07F3 Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, 105 Xingang Road W., Guangzhou 510260, China. Unidad de Protección Vegetal. Centro de Investigación y Tecnología Agroalimentaria (CITA) e Instituto Agroalimentario de Aragón (IA 2) (CITA-Universidad de Zaragoza), Avenida Montañana, 930. 50059 Zaragoza, Spain. & Buzh. Buzh.Gao@msn.com Author Coca-Abia, María Milagro AA630400-F786-448F-952E-DC786CA8644A mcoca@aragon.es text European Journal of Taxonomy 2021 2021-05-12 749 1 94 http://dx.doi.org/10.5852/ejt.2021.749.1355 journal article 6634 10.5852/ejt.2021.749.1355 83109e54-596a-4be0-ac2c-c4e1702cfb8a 2118-9773 4770293 25FD5744-861D-45E4-B6AD-350716AA29BF Miridiba huesiotoi Li & Yang, 2015 Miridiba huesiotoi Li & Yang in Li et al ., 2015: 524 ( type loc.: Green Island, Taiwan , China ). Miridiba huesiotoi – Bezděk 2016: 271 (catalogue). — Gao et al . 2018: 13 (catalogue); 2019: 461 (species list; in key). Diagnosis See Li et al . (2015) . Remarks Miridiba huesiotoi was described based on the male holotype and eleven paratypes ( 5 males and 6 females ) ( Li et al . 2015 ). According to the original description, M. huesiotoi can be separated from M. formosana by having pubescence on pronotum, elytra and scutellum hardly observable; apex of clypeus moderately bilobed; anterior angles slightly protuberant; metafemora slender, slightly broadened at middle; parameres with upper part curved downwardly, exceeding the end of the ventral branches extremely. In our opinion, features at the external morphology are not discrete enough to differentiate M. huesiotoi from M. formosana . 1) Setae on body distinctly short / distinctly long. 2) The apex of clypeus moderately bilobed / weakly bilobed. 3) Anterior angles of pronotum slightly protuberant / moderately protuberant. 4) Metafemora slender, slightly broadened at middle / expanded anteriorly and posteriorly. 5) Parameres with upper part curved / strongly curved. These differences found by Li et al . (2015) could be due to intraspecific variability of M. formosana . However, given that we were unable to examine the types of M. huesiotoi to study the variability of these characters or to compare them with the type of M. formosana ; M. huesiotoi is considered a valid species until further investigation is done. Based on the 9-segmented antennae and the parameres described by Li et al . (2015) , this species is included in this genital morphotype I “ Trichophora ”. Distribution China ( Taiwan) .