taxonID	type	description	language	source
9F1487BE1A0F9E211683F8F3FE04F859.taxon	materials_examined	New data: Bezhanovo, Parnitsite Cave, N 43.2002 E 24.4328, 9.11.2022, 1 ♀, leg. R. Bekchiev, N. Simov, M. Langourov (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0C9E221683F91EFB0EF8AC.taxon	discussion	Literature data: Longoza, Varna (Karaman 1969)	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0C9E221683F91EFB0EF8AC.taxon	materials_examined	New data: Nikopol, N 43.7098 E 24.9138, 19.5.2021, 1 ♂, leg. R. Bekchiev (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0C9E221683F8C6FC0AF810.taxon	discussion	Literature data: Varna, Longoza (Hlaváč et al. 2007; Karaman 1969)	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0C9E221683FA36FE04F984.taxon	materials_examined	New data: Bezhanovo, Parnitsite cave, N 43.2002 E 24.4328, 9.11.2022, 1 ♂, 1 ♀, leg. R. Bekchiev, N. Simov, M. Langourov (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0C9E221683FF06FB46FEB4.taxon	discussion	Literature data: Varna (Karaman 1969).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0C9E221683FF06FB46FEB4.taxon	materials_examined	New data: Zlatni pyasatsi, N 43.3055 E 28.0392, 31.5.2019, 1 ♂, leg. R. Bekchiev (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0C9E221683FEEEFDCDFE78.taxon	discussion	Literature data: Varna (Karaman 1969).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0C9E221683FB6AFDCDFAFC.taxon	discussion	Literature data: Varna (Karaman 1969).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0C9E221683FDBAFE04FCF4.taxon	materials_examined	New data: Bezhanovo, Parnitsite Cave, N 43.2002 E 24.4328, 9.11.2022, 1 ♂, leg. R. Bekchiev, N. Simov, M. Langourov; 27.2.2022, 1 ♂, 1 ♀, leg. R. Bekchiev, N. Simov, M. Langourov; Rusenski Lom River Valley. Pepelina Vill., 154 m a. s. l. Orlova Chuka Cave, N 43.5944 E 25.9587, 24.08 – 09.09.2022, MSS trap close to the entrance, 1 ♂, leg. R. Bekchiev, N. Simov, M. Langourov; 17.06 – 24.08 i. 2022, 5 ♂♂, leg. R. Bekchiev, N. Simov, M. Langourov; 24.08.2022 – 09.09.2023, 8 ♀♀, leg. R. Bekchiev, N. Simov, M. Langourov; Devetaki Vill., Devetashkata Cave, N 43.2339 E 24.8851, MSS trap close to the entrance, 06 – 07.11.2024, 6 ♂♂, 6 ♀♀, leg. R. Bekchiev, N. Simov, M. Langourov (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0C9E221683FC2EFD1BFB08.taxon	materials_examined	New data: Bozhuritsa, N 43.8833 E 22.7166, 2.9.2008, 5 ♂♂, 1 ♀, leg. P. Mitov; Krasno gradishte, Rositsa river, N 43.1833 E 25.2216, 17.6.2022, 5 ♂♂, leg. R. Bekchiev; South of Bregovo Town, between Kosovo and Dileina village, Quercus cerris forest, 236 m, N 44.0765 E 22.6405, 2.9.2008, 2 ♂♂, 1 ♀, leg. P. Mitov; Rositsa Village, N 43.9461 E 27.9178, 19.6.2012, 1 ♂, 3 ♀♀, leg. R. Bekchiev; Gavril Genovo, N 43.3690 Е 23.0580, 18.06 - 15.07.2020, 6 ♂, leg. I. Todorov (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683FEDFFDEEFE08.taxon	discussion	Literature data: Varna (Hlaváč et al. 2007)	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683FF08FD10FF52.taxon	discussion	Literature data: Kamchia (Rambousek 1909)	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683FE6BFD59FDD0.taxon	materials_examined	New data: Belogradchik, N 43.6171 E 22.6890, 3.5.2015, 2 ♀♀, leg. R. Bekchiev, R. Kostova (NMNHS); Varna, Albena, 03.06.1990, 2 ♂♂, leg. Batelka (NMPC).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683FD53FE8BFCDC.taxon	discussion	Literature data: Albena, Kranevo (Sabella et al. 2004), Vinishte (Langourov et al. 2018)	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683FD53FE8BFCDC.taxon	materials_examined	New data: Tsar Kaloyan, N 43.6568 E 26.2518, 23.4.2011, 1 ♂, 2 ♀♀, leg. R. Bekchiev, R. Kostova (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683FC57FD53FBD8.taxon	discussion	Literature data: Varna (Karaman 1972 b).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683FC57FD53FBD8.taxon	materials_examined	New data: Kula Village, N 43.9204 E 22.5321, 6.8.2016, 1 ♂, leg. R. Bekchiev, R. Kostova (NMNHS); Varna, Kranevo, 16.09.1966, 1 ♂, leg. P. Nohel (MHNG).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683FB5BFE8BFAC4.taxon	materials_examined	New data: Tabachka Village, Cherni Lom River bank, N 43.6064 E 25.9814, 21.4.2011, 27 ♂♂, 20 ♀♀, leg. R. Bekchiev, R. Kostova (NMNHS); Svishtov, Sovata, N 43.5364 E 25.4832, 17.6.2021, 1 ♂, leg. R. Bekchiev (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683F8D3FE8BF85C.taxon	discussion	Literature data: Varna (Karaman 1969; 1972 b).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683F8D3FE8BF85C.taxon	materials_examined	New data: Sovata Village, N 43.53647 E 25.48328, 17.6.2021, at light, 9 ♂♂, 7 ♀♀, leg. R. Bekchiev (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683FA5FFAD4F9EC.taxon	materials_examined	New data: Sovata Village, N 43.5364 E 25.4832, 17.6.2021, at light, 46 ♂♂, 2 ♀♀, leg. R. Bekchiev (NMNHS); Krasno gradishte, Rositsa river, N 43.1833 E 25.2216, 17.6.2022, 2 ♂♂, 2 ♀♀, leg. R. Bekchiev (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0D9E231683F907FDCDF951.taxon	discussion	Literature data: Varna (Karaman 1969).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683FDD8FBD1FD02.taxon	discussion	Literature data: Veliko Tarnovo (Netolitzky 1912), Kamchia, Varna (Karaman 1969).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683FF08FE8BFEEA.taxon	discussion	Literature data: Albena, Varna (Karaman 1969; 1972 b).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683FF08FE8BFEEA.taxon	materials_examined	New data: Logashevtsi, N 43.78583 E 22.76663, 7.8.2016, 1 ♂, 3 ♀♀, leg. R. Bekchiev, R. Kostova (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683FE0CFD58FE5E.taxon	discussion	Literature data: Kamchia, Varna (Karaman 1969).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683F98CFC94F916.taxon	discussion	Literature data: Varna (Karaman 1969).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683F98CFC94F916.taxon	materials_examined	New data: Belane, N 43.65401 E 25.12411, 5.8.2016, 4 ♂♂, 2 ♀♀, leg. R. Bekchiev; Belane Island, N 43.6618 E 25.1444, 18.6.2021, 1 ♂, leg. R. Bekchiev (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683F890FD6CF876.taxon	discussion	Literature data: Varna, Shumen (Kionskovete) (Karaman 1969; 1972 b), Vinishte (Langourov et al. 2018).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683F890FD6CF876.taxon	materials_examined	New data: Batovo, N 43.4050 E 27.9505, 27.8.2021, 2 ♂♂, 3 ♀♀, leg. R. Bekchiev; Vidin, Valchan village, N 43.7697 E 22.7213, 16.4.2021, 3 ♂♂, 2 ♀♀, leg. R. Bekchiev; Rusenski Lom, Pisanets, N 43.6659 E 26.1530, 3.5.2022, 6 ♂♂, 10 ♀♀, leg. R. Bekchiev (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683FD64FBCEFBBA.taxon	discussion	Literature data: Kamchia, Varna (Karaman 1969; 1972 b).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683FD64FBCEFBBA.taxon	materials_examined	New data: Dunav bank, Orsoya, N 43.7776 E 23.0614, 8.7.2021, 2 ♀♀, leg. R. Bekchiev; Belene, N 43.65401 E 25.12411, 3 ♂♂, 6 ♀♀, leg. R. Bekchiev; Leskovets Villge, marshes, N 43.7043 E 24.0576, 5.8.2016, 1 ♂, 1 ♀, leg. R. Bekchiev; Archar, N 43.8190 E 22.9266, 4.5.2015, 7 ♂♂, 4 ♀♀, leg. R. Bekchiev; Tsar Kaloyan, N 43.6568 E 26.2518, 23.4.2011, 1 ♂, leg. R. Bekchiev; Nova cherna, Kalimok, N 44.0317 E 26.4326, 20.5.2013, 2 ♂♂, 3 ♀♀, leg. A. Bobeva (NMNHS); Varna, Kranevo, 16.09.1966, 1 ♂, leg. P. Nohel (MHNG).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683FBFCFB3CFA6A.taxon	discussion	Literature data: Varna, Kamchia (Karaman 1969; 1972 b), Karaisen, Trapishte, Kalenik, Dermantsi, Vinishte (Langourov et al. 2018).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0A9E241683FBFCFB3CFA6A.taxon	materials_examined	New data: Archar, N 43.8190 E 22.9266, 4.5.2015, 1 ♂, 10 ♀♀, leg. R. Bekchiev; Tsar Kaloyan, N 43.6568 E 26.2518, 23.4.2011, 2 ♂♂, 2 ♀♀, leg. R. Bekchiev; Logashevtsi, N 43.78583 E 22.76663, 4.5.2015, 4 ♂♂, 1 ♀, leg. R. Bekchiev; Ruse, Dolna Studena, N 43.5268 E 25.71197, 21.5.2021, 1 ♂, leg. R. Bekchiev; Rusenski Lom, Besarbovo, N 43.7633 E 25.9544, 23.4.2011, 1 ♀, leg. R. Bekchiev; Mitrovtsi, N 43.4123 E 22.9403, 2.5.2015, 1 ♀, leg. R. Bekchiev; Tabachka Village, Cherni Lom River bank, N 43.6123 E 25.9825, 21.4.2011, 1 ♂, 5 ♀♀, leg. R. Bekchiev, R. Kostova (NMNHS); Varna, Kranevo, 16.09.1966, 1 ♂, leg. P. Nohel (MHNG).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0B9E251683FA1CFC5EFA4E.taxon	discussion	Literature data: Medzhak dupka Cave, Jame 2 Cave (Hlaváč et al. 2008)	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0B9E251683FF08FE59FD96.taxon	discussion	Literature data: Pleven (Karaman 1952).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0B9E251683FF08FE59FD96.taxon	materials_examined	New data: Bezhanovo, Parnitsite Cave, N 43.2002 E 24.4328, 27.2.2022, 1 ♂, 2 ♀♀; 9.11.2022, 3 ♂♂, 2 ♀♀; 23.2.2023, 1 ♂, 3 ♀♀, leg. R. Bekchiev, N. Simov, M. Langourov; Belogradchik, N 43.6171 E 22.6890, 3.5.2015, 3 ♂♂, 4 ♀♀, leg. R. Bekchiev, R. Kostova; Tsar Kaloyan, N 43.6568 E 26.2518, 23.4.2011, 4 ♂♂, 5 ♀♀, leg. R. Bekchiev, R. Kostova; Vidin, Valchan village, N 43.7697 E 22.7213, 16.4.2021, 3 ♂♂, 1 ♀, leg. R. Bekchiev; Zlatni piasatsi, N 43.3055 E 28.03927, 31.5.2019, 1 ♂, leg. R. Bekchiev; Drinovo, N 43.3833 E 26.3667, 13.5.2012, 1 ♂, leg. E. Chehlarov; Vidin, Bozhutitsa locality, Fagus forest, N 43.8833 E 22.71666, 28.9.2008, 2 ♂♂, 4 ♀♀, leg. P. Mitov; Belogradchik, Madona locality, 43.6115 E 22.7040, 3.11.2008, 1 ♂, 1 ♀, leg. P. Mitov; Kula Village, N 43.9204 E 22.5321, 6.8.2016, 5 ♂♂, 4 ♀♀, leg. R. Bekchiev (NMNHS); Golyama Zhelyazna, 09.06.1989, 8 ex., leg. C. Besuchet (MHNG).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0B9E251683FD10FBB8FC92.taxon	materials_examined	New data: Rusenski Lom, Cherven, N 43.624903 E 26.0239, 21.4.2011, 1 ♂, 3 ♀♀, leg. R. Bekchiev, R. Kostova; Prebalkan Mts., Devetaki Vill., Devetashkata Cave, N 43.2339 E 24.8851, MSS trap close to the entrance, 16.06 - 24.08.2022, 6 ♂♂, 5 ♀♀, leg. R. Bekchiev, N. Simov, M. Langourov (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0B9E251683FB50FC63FA9A.taxon	materials_examined	New data: Golyama Zhelyazna, 09.06.1989, 6 ex., leg. C. Besuchet (MHNG).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0B9E251683FC14FB57FBD6.taxon	materials_examined	New data: Tsar Kaloyan, N 43.6568 E 26.2518, 23.4.2011, 1 ♂, 1 ♀, R. Bekchiev, R. Kostova; Shumen, Shumensko plato, cave Zandana, N 43.2660 E 26.8868, 28.9.1996, 1 ♂, P. Beron; Rusenski Lom, Ivanovo, N 43.6959 E 25.9888, 3.5.2022, 3 ♂♂, 15 ♀♀, leg. R. Bekchiev; Rusenski Lom, Pisanets, N 43.6659 E 26.1530, 3.5.2022, 4 ♀♀, leg. R. Bekchiev; Rusenski Lom, Besarbovo, N 43.7633 E 25.9544, 23.4.2011, 2 ♂♂, 4 ♀♀, leg. R. Bekchiev, R. Kostova; Tabachka Villge, N 43.6123 E 25.9825, 21.4.2011, 1 ♂, leg. R. Bekchiev, R. Kostova (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0B9E251683F974FAB0F8DA.taxon	materials_examined	New data: Vidin, Valchan village, N 43.7697 E 22.7213, 16.4.2021, 1 ♂, 2 ♀♀, leg. R. Bekchiev; Rositsa Village, N 43.9461 E 27.9178, 19.6.2012, 1 ♂, leg. R. Bekchiev (NMNHS); Madara, 1928, 1 ♂, leg. Biro (MHNG).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A0B9E251683F9A8FB32F932.taxon	materials_examined	New data: Varna, 10.10.1944, 3 ♂♂, leg. Karnozhitskii; 7.1934, 1 ♂, leg. F. Shubert (NMW).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683FF08FD31FEB6.taxon	materials_examined	New data: Prebalkan Mts., Devetaki Vill., Devetashkata Cave, N 43.2339 E 24.8851, 19.11.2024, 1 ♂, 1 ♀, leg. R. Bekchiev, N. Simov, M. Langourov (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683FEF0FB82FD2E.taxon	discussion	Literature data: Varna (Karaman 1969); Vinishte (Langourov et al. 2018).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683FEF0FB82FD2E.taxon	materials_examined	New data: Banitsa, N 43.3391 E 23.6850, 16 – 29.06.2019, 1 ♂, leg. T. Ljubomirov; Bregovo, Timok river bank, N 44.1703 E 22.6254, 29.9.2008, 5 ♂♂, 1 ♀, leg. P. Mitov; Krasno gradishte, Rositsa river, N 43.1833 E 25.2216, 17.6.2022, 2 ♂♂, leg. R. Bekchiev; Rusenski Lom, Ivanovo, N 43.6959 E 25.9888, 3.5.2022, 6 ♂♂, 1 ♀, leg. R. Bekchiev; Shumen, Shumensko plato, N 43.2461 E 26.9032, 21.6.2019, 1 ♂, leg. R. Bekchiev; Rositsa Village, N 43.9461 E 27.9178, 19.6.2012, 2 ♂♂, leg. R. Bekchiev, R. Kostova (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683FD48FACDFC92.taxon	materials_examined	New data: Belogradchik, N 43.6171 E 22.6890, 3.5.2015, 1 ♂, 1 ♀, leg. R. Bekchiev, R. Kostova (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683FA88FD4BF9FA.taxon	discussion	Literature data: Kamchia, Varna (Karaman 1969), Kranevo (Hlaváč 1997), Obrochiste, Albena (Sabella et al. 1998).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683FA88FD4BF9FA.taxon	materials_examined	New data: Archar, N 43.8190 E 22.9266, 4.5.2015, 3 ♂♂, 3 ♀♀, leg. R. Bekchiev; Besarbovo, Rusenski Lom, N 43.7597 E 25.9639, 23.4.2011, 1 ♂, leg. R. Bekchiev; Dunav bank, Gulyantsi, N 43.6860 E 24.7076, 18.5.2021, 1 ♂, 2 ♀♀, leg. R. Bekchiev; Tabachka Village, N 43.6123 E 25.9825, 21.4.2011, 7 ♂♂, leg. R. Bekchiev; Belene, N 43.65401 E 25.12411, 6.8.2016, 2 ♂♂, 2 ♀♀, leg. R. Bekchiev (NMNHS); Varna, Kranevo, 16.09.1966, 2 ♂, leg. P. Nohel; Obrochishte 12.07.1972, 3 ♂♂ (MHNG).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683F93CFA09F882.taxon	discussion	Literature data: Varna (Karaman 1972 a).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683F93CFA09F882.taxon	materials_examined	New data: Tabachka Village, N 43.6123 E 25.9825, 21.4.2011, 2 ♂♂, leg. R. Bekchiev, R. Kostova (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683FC14FC54FBBA.taxon	discussion	Literature data: Razgrad (Markovich 1909).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683FC14FC54FBBA.taxon	materials_examined	New data: Varna, Kranevo, 16.09.1966, 1 ♂, leg. P. Nohel (MHNG).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E261683FBFCFDCDFB6E.taxon	discussion	Literature data: Varna (Karaman 1969).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E271683F8E4FB7DFF52.taxon	discussion	Literature data: Kazashko, Varna (Karaman 1969), Kioshkovete, Shumen (Karaman 1972 a).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A089E271683F8E4FB7DFF52.taxon	materials_examined	New data: Besarbovo, Rusenski Lom, N 43.7597 E 25.9639, 23.4.2011, 1 ♂, 5 ♀♀, leg. R. Bekchiev, R. Kostova; Belogradshik, near Lepenitsa Cave, N 43.6222 E 22.6961, 3.9.2008, 2 ♂♂, 1 ♀, leg. P. Mitov; Belogradchik, between Ruzhintsi and Dolni Lom Villages, N 43.5917 E 22.7750, 28.9.2008, 1 ♂, leg. P. Mitov (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E271683FAA4FB4AFA36.taxon	materials_examined	New data: Karlukovo, N 43.176563 E 24.077900, 16.03.2024, 1 ex., leg. Vasil Vasilev (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E271683FE61FD8FFD2E.taxon	materials_examined	New data: Kartozhabene, N 43.3408 E 24.5402, 24.10.2019, under bark of Populus sp., with Lasius sp., 1 ♀, leg. G. Hristov, D. Chobanov (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E271683FD49FD40FC92.taxon	discussion	Literature data: Zlatni pyasatsi (Hlaváč et al. 2007).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E271683FC15FC5CFB9E.taxon	discussion	Literature data: Kamchia, Varna (Karaman 1969), Vidin (Karaman 1972 b)	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E271683FC15FC5CFB9E.taxon	materials_examined	New data: Logashevtsi, N 43.7858 E 22.7666, 4.5.2015, 1 ♀, leg. R. Bekchiev, R. Kostova; Besarbovo, Rusenski Lom, N 43.7597 E 25.9639, 23.4.2011, 1 ♀, leg. R. Bekchiev (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E271683FED5FD58FE06.taxon	discussion	Literature data: Kamchia, Varna (Karaman 1969).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E271683FB18FD58FB42.taxon	discussion	Literature data: Varna, Kamchia (Karaman 1969).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E291683F9A9FBEEF849.taxon	description	(Figs. 2 f, 3)	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E291683F9A9FBEEF849.taxon	materials_examined	Material examined: (8 ♂♂, 18 ♀♀). Holotype: 1 ♂: Devetashka Cave entrance, N 43.2339 E 24.8851, 28.1.2022, sifting leaf litter, leg. R. Bekchiev, N. Simov, M. Langoutov (NMNHS). Paratypes: (7 ♂♂, 18 ♀♀): 4 ♀♀: Devetashka Cave entrance, N 43.2339 E 24.8851, 28.1.2022, leg. R. Bekchiev; N. Simov, M. Langoutov (NMNHS); 3 ♂♂, 3 ♀♀: Mitrovtsi, N 43.4123 E 22.9403, 2.5.2015, leg. R. Bekchiev (NMNHS); 4 ♂♂, 11 ♀♀: Kula Village, N 43.9204 E 22.5321, 6.8.2016, leg. R. Bekchiev (NMNHS).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E291683F9A9FBEEF849.taxon	description	Description. Body dark reddish-brown, BL 1.45 – 1.50 mm. Legs, antennae and maxillary palpi yellowishbrown. Pubescence on head, pronotum and elytra gold, long and sub-erected. Head (Fig. 3 a) wider than long, HL 0.22 – 0.24 mm, HW 0.27 – 0.30 mm. Vertex smooth with narrow transverse carina in posterior part, reaching level of vertexal foveae. Frons with deep depression between antennal tubercles; triangular anteriad. Eyes large, with 20 – 25 ommatidia each. Gular region with convex oval median protuberance. Antennae long (0.46 mm), scape simple, pedicel securiform (Fig. 3 b). Antennomeres 3 – 8 subequal in length, 9 wide than long, 10 as wide as long, 11 large and fusiform. Maxillary palpi long, palpomere 1 small, 2 long, pedunculate, 3 small, 4 large, its dorsal part with large, ovoid medium protuberance (Fig. 3 c). Pronotum wider than long, PW 0.34 – 0.36 mm, PL 0.28 – 0.30, widest in anterior half. Elytra wider than long, EW 0.54 – 0.56 mm, EL 0.48 – 0.40 mm. Abdomen AW 0.50 – 0.52 mm, AL 0.38 – 0.40 mm. Legs slender, all tibiae simple. Aedeagus 0.34 – 0.36 mm long, parameres with large, preapical tooth, internal sac with two symmetrical sclerites, each bearing one large and one small, pointed tooth (Fig. 3 d). Sexual dimorphism. Female similar in length and habitus to male, only the last palpomere and the gular region is flat and simple.	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E291683F9A9FBEEF849.taxon	diagnosis	Differential diagnosis. Bythinus tridentus sp. nov. belongs to the Bythinus securiger Reichenbach, 1816 species group and within the group can be easily recognized by the combination of the following characters: 1) shape of the antennae, 2) shape of the last palpomere, and 3) shape of the aedeagus. It is closely related to Bythinus balkanicus Reitter, 1885 from which it differs by the larger size of body, the presence of the large protuberance on the last palpomere and by the different shape of the aedeagus.	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E291683F9A9FBEEF849.taxon	biology_ecology	Biology. All specimens were collected by sifting of leaf litter from the bank of a small rivers or found in MSS traps in the karst area (Fig. 2 f).	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
9F1487BE1A099E291683F9A9FBEEF849.taxon	etymology	Etymology. named after the trident shape of the internal apophysis of the aedeagus.	en	Bekchiev, Rostislav, Kostova, Rumyana, Langourov, Mario, Simov, Nikolay (2025): The subfamily Pselaphinae (Coleoptera: Staphylinidae) of North Bulgaria. I. Zootaxa 5647 (3): 289-300, DOI: 10.11646/zootaxa.5647.3.5, URL: https://doi.org/10.11646/zootaxa.5647.3.5
