Integrative taxonomy of the leaf-beetle genus Gonioctena Chevrolat, 1836 in Taiwan (Coleoptera, Chrysomelidae, Chrysomelinae, Gonioctenini) reveals new synonymies and one new species

By

Lee, Chi-Feng 1968-
Hsieh, Chia Hung

Type

Article

Date of Publication

2022

Original Publication

ZooKeys

Volume

1120

Pages

1--46

Subjects

New host plants , new species , new synonym , Nomenclature , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1120.87526

 

Abstract

Taiwanese species of Gonioctena are revised based on morphological, molecular, and ecological information. Gonioctena subgeminata (Chen, 1934), G. tredecimmaculata (Jacoby, 1888), G. kamikawai (Chûjô, 1958), and G. osawai Kimoto, 1996 are redescribed. The study confirms that Phytodecta tredecimmaculatus var. taiwanensis Achard, 1924 should be considered a junior synonym of G. tredecimmaculata (Jacoby, 1888), along with two new junior synonyms, G. ohmomoiCho et al. 2016 (syn. nov.) and G. riyuetanensisCho et al. 2016 (syn. nov.). Phytodecta (Asiphytodecta) issikii Chûjô, 1958 (syn. nov.) is treated as a junior synonym of Gonioctena scutellaris Baly, 1862, which is removed from synonym with G. fulva (Motschulsky, 1861) (stat. rev.) and redescribed. Gonioctena thoracica Baly, 1862 (syn. nov.), G. dichroa Fairmaire, 1888 (syn. nov.), and G. foochowensis Gruev, 1989 (syn. nov.) are proposed as junior synonyms of G. scutellaris Baly, 1862. A new species, G. liuisp. nov., is described and differentiated ecologically from G. scutellaris. Gonioctena nigroplagiata Baly, 1862 is newly recorded from Matsu Islands and redescribed. Host plants and biological information are provided for all Taiwanese species. Lectotypes are designated for G. scutellaris Baly, 1862, G. thoracica Baly, 1862, and G. nigroplagata Baly, 1862.