References
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Gusakov, A.A. & Klimenko, A.A. (2011) Novyy vid roda Lethrus Scopoli, 1777 (podroda Scelolethrus Semenov, 1892) iz Irana (Coleoptera: Scarabaeidae: Geotrupinae). A new species of the genus Lethrus Scopoli, 1777 (subgenus Scelolethrus Semenov, 1892) from Iran (Coleoptera: Scarabaeidae: Geotrupinae). Eversmannia, 25–26, 3–8. [in Russian, English abstract]
Král, D. & Hillert, O. (2013) Three new Lethrus species close to L. raymondi (Coleoptera: Geotrupidae) from the Balkan Peninsula. Acta Entomologica Musei Nationalis Pragae, 53, 219–244.
Král, D. & Olexa, A. (1996) New and otherwise noteworthy Lethrus species from Central Asia and Afghanistan (Coleoptera: Geotrupidae). Folia Heyrovskyana, 4, 49–65.
Nikolajev, G.V. (2003a) Obzor vidov podroda Scelolethrus Semenov, 1892 roda Lethrus Scop. (Coleoptera, Scarabaeidae, Geotrupinae). Review of species of the subgenus Scelolethrus Semenov, 1892 of the genus Lethrus Scop. (Coleoptera, Scarabaeidae, Geotrupinae). Tethys Entomological Research, 7, 169–186. [in Russian, English summary]
Nikolajev, G.V. (2003b) Zhuki-kravchiki (Scarabaeidae, Geotrupinae, Lethrini): biologiya, sistematika, rasprostranenie, opredelitel’. Lethrini (Coleoptera: Scarabaeidae, Geotrupinae): biology, systematics, distribution, keys. Kazak universiteti, Almaty, 254 pp. [in Russian, English summary]
Nikolajev, G.V., Král, D. & Bezděk, A. (2016) Family Geotrupidae Latreille, 1802. In: Löbl, I. & Löbl, D. (Eds.), Catalogue of Palaearctic Coleoptera. Vol. 3. Scarabaeoidea—Scirtoidea—Dasciloidea—Buprestoidea—Byrrhoidea. Revised and Updated Edition. E. J. Brill, Leiden, pp. 33–52. https://doi.org/10.1163/9789004309142_003
Pak, O.V. & Gubin, A.I. (2020) Dva novykh vida zhukov-kravchikov podroda Furcilethrus Nikolajev, 1968 roda Lethrus Scopoli, 1777 (Coleoptera: Geotrupidae) iz Tadzhikistana. Two new species of subgenus Furcilethrus Nikolajev, 1968 of genus Lethrus Scopoli, 1777 (Coleoptera: Geotrupidae) from Tajikistan. Humanity Space. International Almanac, 9, 547–562. [in Russian, English abstract]
Schoolmeesters, P. (2021) Scarabs: World Scarabaeidae Database (version Nov 2020). In: Roskov, Y., Abucay, L. Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., DeWever, A., Nieukerken, E., van, Zarucchi, J. & Penev, L. (Eds.), Species 2000. Naturalis, Leiden. Digital resource. Available from: http://www.catalogueoflife.org/annual-checklist/2017 (accessed 29 March 2021)