23.510555, 43.15528: 10 Treatments

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Agrilus graminis     Jendek, Eduard & Nakládal, Oto, 2019, Taxonomic, distributional and biological study of the genus Agrilus (Coleoptera: Buprestidae). Part II, Zootaxa 4554 (2), pp. 401-459: 421-422 421-422
Habrocerus pisidicus     Assing, Volker, 2008, A revision of the Habrocerinae of the world. IV. A new species of Habrocerus from China and additional records (Coleoptera: Staphylinidae), Beiträge Zur Entomologie = Contributions to Entomology 58 (1), pp. 135-144: 138-139 138-139
Agrilus angustulus     Jendek, Eduard & Nakládal, Oto, 2019, Taxonomic, distributional and biological study of the genus Agrilus (Coleoptera: Buprestidae). Part II, Zootaxa 4554 (2), pp. 401-459: 404-407 404-407
Agrilus sinuatus subsp. sinuatus     Jendek, Eduard & Nakládal, Oto, 2021, Taxonomic, distributional and biological study of the genus Agrilus (Coleoptera Buprestidae). Part III, Zootaxa 4963 (1), pp. 58-90: 82 82
Molophilus (Molophilus) balcanicus   sp. n.  Kolcsar, Levente-Peter, Toeroek, Edina & Keresztes, Lujza, 2015, A new species and new records of Molophilus Curtis, 1833 (Diptera: Limoniidae) from the Western Palaearctic Region, Biodiversity Data Journal 3, pp. 5466-5466: 5466 5466
Molophilus (Molophilus) balcanicus   sp. n.  Kolcsar, Levente-Peter, Toeroek, Edina & Keresztes, Lujza, 2015, A new species and new records of Molophilus Curtis, 1833 (Diptera: Limoniidae) from the Western Palaearctic Region, Biodiversity Data Journal 3, pp. 5466-5466: 5466 5466
Leptopilos memorialis     Naumova, Maria, Blagoev, Gergin & Deltshev, Christo, 2021, Fifty spider species new to the Bulgarian fauna, with a review of some dubious species (Arachnida: Araneae), Zootaxa 4984 (1), pp. 228-257: 235 235
Tetragnatha shoshone     Naumova, Maria, Blagoev, Gergin & Deltshev, Christo, 2021, Fifty spider species new to the Bulgarian fauna, with a review of some dubious species (Arachnida: Araneae), Zootaxa 4984 (1), pp. 228-257: 248 248
Bolitobius castaneus subsp. boreomontanicus   ssp. nov.  Schülke, M., 2010, Zur Verbreitung und subspezifischen Gliederung von Bolitobius castaneus (STEPHENS 1832) (Coleoptera, Staphylinidae, Tachyporinae), Linzer biologische Beiträge 42 (2), pp. 1461-1480: 1469-1474 1469-1474
Lithobius melanops     Bachvarova, Darina, Vagalinski, Boyan, Doichinov, Aleksandar & Stoev, Pavel, 2017, New records of millipedes and centipedes from Bulgaria, with an annotated checklist of the Bulgarian myriapods, Zootaxa 4263 (3), pp. 507-526: 508 508