taxonID	type	description	language	source
038E3B521A2BFFCEA65DFE6AFD919E02.taxon	description	Figs 1 – 4.	en	Petrov, A. V., Mandelshtam, M. Yu., Li, You, Potanina, S. O., Smith, S. M. (2024): Nomenclature changes in Palaearctic Scolytinae (Coleoptera: Curculionidae). Russian Entomological Journal 33 (4): 463-465, DOI: 10.15298/rusentj.33.4.07
038E3B521A2BFFCEA65DFE6AFD919E02.taxon	description	Scolytus emarginatus differs from the morphologically similar Scolytus schevyrewi by structure of the male frons and male genitalia: frons in the former is covered by very dense, longitudinal deep aciculations, puncturation not visible (Fig. 1) and in the latter by sparse, longitudinal shallow aciculatiuons, intervals between aciculations with small punctures (Fig. 2); male genitalia in S. emarginatus possess long narrow apophyses, penis tube is narrow and long (11.6 – 12.3 times longer than wide), 1.48 times longer than apophyses (Fig. 3) and in S. schevyrewi male genitalia have short wide apophyses, median lobe is wider (8.4 – 8.6 times longer than wide), 2.0 times longer than apophyses (Fig. 4). S. emarginatus thus is restored from a synonymy with S. schevyrewi. Both species share partly overlapping distribution ranges in Central Asia and China.	en	Petrov, A. V., Mandelshtam, M. Yu., Li, You, Potanina, S. O., Smith, S. M. (2024): Nomenclature changes in Palaearctic Scolytinae (Coleoptera: Curculionidae). Russian Entomological Journal 33 (4): 463-465, DOI: 10.15298/rusentj.33.4.07
038E3B521A28FFCEA7B3F9F9FC1F992B.taxon	description	Figs 5 – 8. The name for the species was proposed by V. N. Stark [1936], but the morphological description of the species was provided for the first time in the monograph of A. I. Kurentsov [1941]. V. N. Stark [1952] gave the following characteristics to distinguish E. eggersi from E. tiliae (Panzer, 1793): more elongated body form and strong metallic shining luster of the body and broader elytral striae. In contemporary literature E. eggersi is considered a junior synonym of E. tiliae [Johnson et al., 2020]. In 2024 in vicinity of Vladivostok (Bogataya River) A. V. Petrov collected a series of E. eggersi consisting of 32 specimens that allowed detailed morphological study of the species. In our opinion, features of outer morphology [Stark, 1952] do not allow to separate the two closely related species (Figs 5 – 6). The only reliable feature to distinguish E. eggersi is the structure of the male genitalia. Males of E. eggersi possess a broad tegmen of semicircular form; apophyses very short, penis body is 2.3 times as long as apophyses; penis tube elongated, 2.9 times as long as wide; supporting penis structure is located not on penis apex, but closer to penis middle (Fig. 7). In males of E. tiliae the tegmen is narrow, apophyses are short, penis body is 2.0 times as long as apophyses; penis tube more broad, 1.7 times as long as wide; supporting penis structure is located on the penis apex (Fig. 8). Ernoporus eggersi thus is restored as a valid species and removed from synonymy with E. tiliae. From the long syntypic series of Ernoporus eggersi (ZIN) we selected the lectotype (sex unknown) with the geographic label: “ 239. Майхинский ЛПХ [ЛеспромхоЗ], Соловейцев ключ, Tilia amurensis, 20. IX. [19] 31 ” (239. Maikhe Forestry Enterprise, Soloveytsev stream, 20. IX. [19] 31 ”) bearing also the additional label “ collected by Kurentsov on Far East ” probably added by V. N. Stark. Competing interests. The authors declare no competing interests.	en	Petrov, A. V., Mandelshtam, M. Yu., Li, You, Potanina, S. O., Smith, S. M. (2024): Nomenclature changes in Palaearctic Scolytinae (Coleoptera: Curculionidae). Russian Entomological Journal 33 (4): 463-465, DOI: 10.15298/rusentj.33.4.07
038E3B521A28FFCEA64BFBCDFEAA9FDC.taxon	description	We studied the female holotype of Scolytus nunbergi (ZIN) and compared the morphology of this type with 65 S. jacobsoni females from the southern parts of Primorsky Krai (Maritime Terr., Russian Far-East). We found similarity of habitus and elytra puncturation of S. nunbergi with S. jacobsoni, and three S. jacobsoni females have frons morphology identical to those of S. nunbergi. The right protrusion of ventrite 4 in S. nunbergi holotype is not symmetrical with the protrusion on the left. These protrusions are presumably the result of a mutation and are morphological aberrations. There were no observations of beetles with similar ventrtite 4 protuberance since its description. Thus, we consider S. nunbergi to be a junior synonym of S. jacobsoni.	en	Petrov, A. V., Mandelshtam, M. Yu., Li, You, Potanina, S. O., Smith, S. M. (2024): Nomenclature changes in Palaearctic Scolytinae (Coleoptera: Curculionidae). Russian Entomological Journal 33 (4): 463-465, DOI: 10.15298/rusentj.33.4.07
