﻿Addenda and corrigenda: Juřena D (2022) ﻿A critical review of the distribution of the endangered European earth-borer beetle Bolbelasmusunicornis (Coleoptera, Geotrupidae), with new records from 13 countries and observations on its bionomy. ZooKeys 1105: 1–125. https://doi.org/10.3897/zookeys.1105.81474

﻿Abstract The author provides corrections of minor errors and omissions from his initial study, as well as data from omitted and new literature, and new records based on the material studied and new observations. For some of the previously published records, details obtained subsequently by the author are added. The first record of Bolbelasmusunicornis for Belarus is given, representing the northernmost known occurrence of the species. The second recent record for Croatia is quoted from an internet source. Updated distribution maps are provided for the Czech Republic and Slovakia, and for the entire range, as well as a distribution map of the Western Palaearctic representatives of the B.unicornis species group. The species is currently known from 386 localities in 20 countries.

New records are presented based on material and observations obtained by the author just after his initial study (Juřena 2022) was published. Most significant is the record of B. unicornis from southeastern Belarus, which represents the first reliable record for this country and the northernmost known point of occurrence for the species. Records from new localities in Hungary (Csopak; Lábatlan; Kazár) and Slovakia (Mužla-Čenkov; Gemerské Dechtáre) are also provided. The updated distribution maps are shown in Figs 1, 2. Table 1 shows the number of known localities with B. unicornis for each country. These data show that almost half of all known localities where the species has been recorded after 1999 are located in Hungary. Fig. 3 shows the distribution of all Western Palaearctic representatives of the unicornis species group with the exception of B. tauricus Petrovitz, 1973, the validity of which was questioned by Miessen (2011) on the basis of a study of type material (two paratypes were found to belong to B. nireus Reitter, 1895, the holotype is unclear whether it is a form of B. nireus or a different species).

Materials and methods
Within Errata, only lines of text (including headings), not spaces, are numbered; figure legends are not included in the numbering. The faunistic records are divided into paragraphs according to the largest superior administrative units or traditional regions. The countries, administrative units/traditional regions, and faunistic records are ordered according to their geographical position from east to west and from north to south. A question mark at the beginning of a faunistic record indicates dubious data. The following acronyms are used in the text: CEST = Central European Summer Time, FSLG = flying slowly low above the ground, FMF = faunistic map field used in grid mapping of fauna and flora in Central Europe ( Fig. 1; see also e.g., Zelený 1972;Novák 1989;Pruner and Míka 1996;Kolouch 2002), PP = Přírodní památka/ Prírodná pamiatka (Natural Monument), PR = Přírodní rezervace/Prírodná rezervácia (Nature Reserve). Unless otherwise stated, the material has been identified or revised by the author. For the distribution map of the Czech Republic and Slovakia, the records are divided into three time periods : pre-1960: pre- , 1960: pre- -1999: pre- and post-1999. This map was compiled by manually placing the circles in the grid map used for faunistic research in these countries in standard free graphics software. For the distribution map of Europe, the following time periods are used: pre-1950pre- , 1950pre- -1999pre- and post-1999; the distribution map of the Western Palaearctic representatives of the unicornis species group was compiled using data contained in Krikken (1977), Lodos et al. (1999), Petersen et al. (2006), Miessen (2011), Miessen andTrichas (2011), Hillert et al. (2016), Sommer et al. (2021) and Juřena (2022). Both of the latter maps were created using the Google Maps web application by inserting specific GPS coordinates into the system. In cases where the exact GPS coordinates were not known (e.g., records from literature), the midpoint GPS coordinates of the village, town, county, or area were used. The definition of the Western Palaearctic is adopted from Mitchell (2017). Table 1 with the number of localities with the occurrence of B. unicornis for each country is based on the data provided by Juřena (2022) and those in this paper.

Material examined
? "Savoie" [= Savoy, a cultural-historical region of France], 1 ♀ with no other data, coll. ALMD; since this is a mountainous area that does not meet the ecological requirements of the species, it is likely that this is a confusion of locality.

Published data
Bavaria (Bayern), no other data (Schilsky 1888(Schilsky , 1909. The first record of B. unicornis from Germany after 54 years from Bruchsal, Baden (see Juřena 2022) was published simultaneously with full details by Theves and Bittner (2022).

Italy
Published data Piedmont (Piemonte), Provincia di Alessandria, Lerma-all records from this locality published by Juřena (2022) were previously published in a poster for the XXVI Italian National Congress of Entomology (7-11 June 2021) by Glerean et al. (2021).

Austria
Published data ? Tyrol (Tirol), no other data (Schilsky 1888(Schilsky , 1909)-this record does not seem likely given that this is a high mountain region, which does not correspond to the ecological requirements of B. unicornis.
Upper Austria (Oberösterreich), Linz-Ebelsberg, bank of the badly flooded Traun River, [10.vii.1954], 28 spec., F. Linninger leg. (Reisser 1954-this is the first published mention of this record with the correct name of the collector and the exact number of specimens found, something that was missing in subsequent publications: Hoffmann et al. 1955;Franz 1974;Mitter 2000;Schwarz 2008;Juřena 2022); area between Pulgarn und Steyregg, August 1875, 1 ♂ and 1 ♀, A. Mader (Linz) leg., coll. Museum Francisco-Carolinum, Linz (Anonymus 1876-this is the first published mention of this record with the name of the collector and the exact number of specimens found, something that was missing in subsequent publications: Dalla Torre 1879;Schwarz 2008;Juřena 2022).
The species has been reported from Belarus by several authors (e.g., Chobot and Mourek 2007;Alonso-Zarazaga et al. 2013;Potocký and Majzlan 2015;Nuß and Jäger 2020;Hejda 2023), but no concrete records from this country have been published so far. The record above from the vicinity of the village of Karots'ki represents the first documented occurrence of B. unicornis for Belarus. This record, along with records from northeastern Ukraine (Vovk et al. 2005(Vovk et al. , 2016Sheshurak et al. 2018Sheshurak et al. , 2020Sheshurak et al. , 2022Kavurka et al. 2019), suggests the possibility of the species occurring in adjacent areas of Russia.
The record from the vicinity of Rzhyshchiv in the Kiev Oblast (Juřena 2022) was published again by .  Table 1. Number of known localities with Bolbelasmus unicornis in each country (loc = number of localities; locr = number of localities with recent occurrence, i.e., 2000-present; a cross indicates country where the author considers the species to be extinct).