DOI: 10.15468/5a2dcs
title: To the knowledge of the leaf-beetle fauna (Coleoptera: Chrysomelidae) of the Russian Far East

description: This dataset contains the digitized treatments in Plazi based on the original journal article Romantsov, P. V. (2022): To the knowledge of the leaf-beetle fauna (Coleoptera: Chrysomelidae) of the Russian Far East. Caucasian Entomological Bulletin (Caucas. entomol. bull.) 18 (1): 35-42, DOI: 10.23885/181433262022181-3542, URL: http://dx.doi.org/10.23885/181433262022181-3542Abstract. Cryptocephalus (Burlinius) flavolimbatus Pic, 1920 is recorded from Russia for the first time. This species has the aedeagus with the long and thin apical process and belongs to the group of yellow species with a black pattern on the elytra and the distinctly punctured pronotum. New records of Lema concinnipennis Baly, 1865, Chaetocnema kimotoi Gruev, 1980, Neocrepidodera ohkawai Takizawa, 2002, Phyllotreta rectilineata Chen, 1939 in Russia are provided. Photographs of spermathecae and a new identification key for females externally similar species Tricholochmaea ussuriensis Romantsov, 2021, T. semifulva (Jacoby, 1885) and Pyrrhalta flavescens (Weise, 1887) are given for the first time; the general view of T. ussuriensis is imaged for the first time. The material on the rare and little-known species Cryptocephalus gussakovskii Lopatin, 1952 was studied and the lectotype (female) of this species is designated; the paralectotype (male) was probably lost. The original description and futher interpretations of this species incompletely correspond to the lectotype. In the majority of keys this species differs from other representatives of the subgenus Burlinius Lopatin, 1965 only in the anterior margin of the prothorax tooth-like bent downwards, and the images of the aedeagus and the description of male protibiae are absent. According to the original description the male has the protibia curved at the base, and there is no mention of the tooth-like anterior margin of the prothorax. In further works, I.K. Lopatin used only the tooth-like anterior margin of the prothorax (a very rare character within the subgenus Burlinius) to distinguish this species from other representatives of the subgenus. However, he didn’t mention curved male protibia anymore. The description and images of males of C. gussakovskii are given for the first time. All males have strongly curved protibiae with the angularly widened inward distal part. This feature allows to attribute this species to the C. populi species-group. Both males and females of C. gussakovskii have tooth on the prothorax, which distinguishes them from C. populi Suffrian, 1848 and from other yellow representatives of the subgenus. Differences between C. gussakovskii and C. sagamensis Tomov, 1982 from Korea are given; the first species has the smooth, almost impunctate pronotum, the pronotal punctation of latter species is distinct and deep. Two taxa, C. pseudopopuli Schöller, 2011 from South Korea and C. gussakovskii are probably conspecific. Figures of the general view and aedeagi are given for Cryptocephalus flavolimbatus, C. gussakovskii, Chaetocnema kimotoi, Neocrepidodera ohkawai and Phyllotreta rectilineata.