Simov, N., Toshkova, N., Langourov, M., 2022. An unexpected guest in the winter: first record of Aradus bimaculatus Reuter, 1872 (Hemiptera: Aradidae) for the Balkan fauna. — Historia naturalis bulgarica, 44 (9): 91—95. [PDF] doi:10.48027/hnb.44.091
Langourov, M., Simov, N., Abadjiev, S., 2022. The invasion continues: Hierodula tenuidentata (Mantodea), Leptoglossus occidentalis (Hemiptera) and Pelopidas thrax (Lepidoptera) already on the island of Alonnisos. — Historia naturalis bulgarica, 44 (11): 137—144. [PDF] doi:10.48027/hnb.44.112
Langourov, M., Raeburn, H., 2022. A new locality of the violet copper Lycaena helle ([Denis et Schiffermüller], 1775) on the Balkan Peninsula. — Historia naturalis bulgarica, 44 (6): 41—44. [PDF] doi:10.48027/hnb.44.061
Langourov, M., 2022. Butterflies of Bulgaria. Photographic field guide. — National Museum of Natural History, Bulgarian Academy of Sciences, Sofia, 355 pp. [PDF]
Simov, N., Langourov, M., Sakalian, V., Bozukov, V., 2021. First fossil jewel beetle (Insecta: Coleoptera: Buprestidae) from Middle Miocene deposits in Bulgaria. — Historia naturalis bulgarica, 42: 31—34. [PDF] doi:10.48027/hnb.42.052
Simov, N., Langourov, M., Pavlova, A., Hubenov, Z., Bozukov, V., 2021. First record of fossil Diptera (Insecta) in Miocene deposits in Bulgaria. — Comptes rendus de l’Académie bulgare des Sciences 74 (2): 233—240. doi:10.7546/CRABS.2021.02.10 [PDF]
Langourov, M., Simov, N., Abadjiev, S., 2021. Three species of butterflies new for the North Aegean Island of Lemnos (Greece). — Historia naturalis bulgarica, 42: 79—86. [PDF] doi:10.48027/hnb.42.101
Langourov, M., 2021. Scuttle flies (Diptera: Phoridae) of Vitosha Mt (Bulgaria) — Historia naturalis bulgarica, 43 (1): 1—24. [PDF] doi:10.48027/hnb.43.011
Koynova, T. V., Valkova, S. I., Simov, N. P., Langourov, M. S., Natchev, N. D., 2021. Data on the Stomach Content Analysis and Fat-body Morphology in the Agile Frog (Rana dalmatina Fitzinger in Bonaparte, 1838) during the Mating Season in Bulgaria. — Ecologia Balkanica, 13 (1): 27—33. [PDF]
Langourov, M., 2020. A new species of Triphleba Rondani (Diptera: Phoridae) from Kyrgyzstan with some other scuttle flies from the region. — Ecologica Montenegrina, 29: 34—39. [PDF]