| New and interesting records of alien and native true bugs (Hemiptera: Heteroptera) from Bulgaria N Simov, M Langourov, S Grozeva, D Gradinarov Acta zoologica bulgarica 64 (3), 241-252, 2012 | 51 | 2012 |
| Rapid expansion of the Oak lace bug Corythucha arcuata (Say, 1832)(Hemiptera: Tingidae) in Bulgaria N Simov, S Grozeva, M Langourov, M Georgieva, P Mirchev, G Georgiev Historia naturalis bulgarica 27, 51-55, 2018 | 32 | 2018 |
| Sex chromosome pre-reduction in male meiosis of Lethocerus patruelis (Stål, 1854)(Heteroptera, Belostomatidae) with some notes on the distribution of the species S Grozeva, VG Kuznetsova, N Simov, M Langourov, S Dalakchieva ZooKeys, 119, 2013 | 29 | 2013 |
| New and interesting records of the MSS and cave fauna of Vitosha Mt, Bulgaria M Langourov, S Lazarov, P Stoev, B Guéorguiev, C Deltshev, B Petrov, ... Балканска спелеоложка конференция „София’2014 “София, България, 28–30 март …, 2014 | 22 | 2014 |
| Colour trap a method for distributional and ecological investigations of Buprestidae (Coleoptera) V Sakalian, M Langourov Acta Societatis Zoologicae Bohemicae 68 (1), 53-59, 2004 | 22 | 2004 |
| Butterflies and Moths (Insecta: Lepidoptera) of the Bulgarian part of Eastern Rhodopes S Beshkov, M Langourov Biodiversity of Bulgaria 2, 525-676, 2004 | 19 | 2004 |
| Fauna and zoogeography of jewel beetles (Coleoptera: Buprestidae) in Bulgaria V Sakalian, M Langourov Biogeography and Ecology of Bulgaria, 357-378, 2007 | 17 | 2007 |
| Scuttle flies from caves in the Balkan Peninsula (Diptera: Phoridae) M Langourov Acta zoologica bulgarica 53 (3), 33-40, 2001 | 17 | 2001 |
| New records of allochtonous, invasive and pest invertebrate species from the Republic of Macedonia A Cvetkovska-Gjorgievska, I Dedov, S Hristovski, M Langourov, ... Ecologica Montenegrina 20, 56-70, 2019 | 15 | 2019 |
| Cacyreus marshalli Butler, 1898 (Lep.: Lycaenidae), a new species for Bulgaria M Langourov, N Simov Entomol Rec J Var 26, 190-192, 2014 | 10 | 2014 |
| Nocturnal and Day-flying Moths (Macrolepidoptera, excluding Hesperioidea & Papilionoidea) of the Bulgarian part of Western Rhodopes S Beshkov, M Langourov Biodiversity of Bulgaria 4, 299-484, 2011 | 10 | 2011 |
| Contribution to the study of the distribution of Phoridae species in the Balkan Peninsula (Diptera, Phoridae). VL Beschovski, MS Langourov | 10 | 1997 |
| Scuttle flies (Diptera: Phoridae) from the Eastern Rhodopes (Bulgaria) with special consideration of winter-active species M LANGOUROV Biodiversity of Bulgaria 2, 759-768, 2004 | 8 | 2004 |
| First record of fossil Diptera (Insecta) in Miocene deposits in Bulgaria N Simov, M Langourov, A Pavlova, Z Hubenov, V Bozukov Comptes rendus de l’Académie bulgare des Sciences 74 (2), 233-240, 2021 | 7 | 2021 |
| Some scuttle flies (Diptera: Phoridae) from Western Rhodope Mountains M Langourov Biodiversity of Bulgaria 4, 485-498, 2010 | 7 | 2010 |
| Scuttle flies (Diptera: Phoridae) from urban and suburban areas in the Sofia Plain M Langourov Ecology of the City of Sofia. Species and Communities in an Urban …, 2004 | 7 | 2004 |
| Scuttle flies (Diptera: Phoridae) from Kresna Gorge (SW Bulgaria) M Langourov, V Sakalian Biodiversity of Kresna Gorge (SW Bulgaria), 217-218, 2001 | 7 | 2001 |
| blattaria, Mantodea, Isoptera, orthoptera, Dermaptera, embioptera of the Kresna Gorge (SW bulgaria) A Popov, D Chobanov, M Langourov, P Beron Bioraznoobrazie na Kresnenskiya prolom [Biodiversity of the Kresna Gorge (SW …, 2001 | 6 | 2001 |
| Review on scuttle flies of Macedonia (Diptera: Phoridae) M Langourov Proceedings of the Ist congress of ecologists of the Republic of Macedonia …, 1999 | 6 | 1999 |
| New data on the butterflies of Western Stara Planina Mts (Bulgaria & Serbia)(Lepidoptera, Papilionoidea) M Langourov Ecologica Montenegrina 20, 119-162, 2019 | 5 | 2019 |
