Bechev, D.N., 2006. New data about Keroplatidae (Diptera: Nematocera: Sciaroidea) in Bulgaria. Historia Naturalis Bulgarica, 17, pp.93-94.

Bechev, D.N., 2002. Check list of the fungus gnats of the families Bolitophilidae, Diadocidiidae, Ditomyiidae, Keroplatidae, and Mycetophilidae in Bulgaria (Diptera: Nematocera). Plovdivski Universitet "Paisij Khilendarski" Nauchni Trudove Biologiya Animalia, 38, pp.81-112. Available at: http://www.online-keys.net/sciaroidea/2000_/Bechev_2002_Check_list_of_Bulgaria.pdf.

Bechev, D.N., 2001. New species of fungus gnats (Diptera: Sciaroidea, excluding Sciaridae) to the fauna of Bulgaria. VIII. Plovdivski Universitet "Paisij Khilendarski" Nauchni Trudove Biologiya Animalia, 37, pp.5-8. Available at: http://www.online-keys.net/sciaroidea/2000_/Bechev_2001_contributions_fauna_buglaria.pdf.

Bechev, D.N., 1992. On the type specimens of Macrocera nigricoxa Winnertz 1863 and Macrorrhyncha exempla (Plassmann 1978) (Insecta: Diptera: Mycetophiloidea). Senckenbergiana Biologica, 72, pp.317-320. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1992_Macrocera_nigricoxa_M-exempla_n_sp.pdf.

Bechev, D.N., 1991. New species Mycetophiloidea (Diptera) to the Bulgarian fauna V. "Universite de Plovdiv ""Paissi Hilendarski"", Travaux scientifiques", 29, pp.27-30. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1991_Fungus_gnats_Bulgaria_V.pdf.

Chandler, P.J., Bechev, D.N. & Caspers, N., 2006. The fungus gnats (Diptera: Bolitophilidae, Diadocidiidae, Ditomyiidae, Keroplatidae and Mycetophilidae) of Greece, its islands and Cyprus. Studia Dipterologica, 12(1), pp.255-314.

Bechev, D.N., 1985. Acnemia vratzatica n. sp. from Bulgaria (Diptera, Mycetophilidae). REICHENBACHIA, 23, pp.35-36. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1985_Acnemia_vratzatica.pdf.

Bechev, D.N., 1985. The species of subfamily Mycetophiloidea (Diptera) distributed in Bulgaria. ACTA ZOOLOGICA BULGARICA, 27, pp.36-40. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1985_Fungus_gnats_Distributed_Bulgaria.pdf.

Bechev, D.N., 1986. New species from superfamily Mycetophiloidea (Diptera) for Bulgarian fauna. ACTA ZOOLOGICA BULGARICA, 30, pp.72-74. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1986_Fungus_gnats_Bulgaria_I.pdf.

Bechev, D.N., 1986. Sciophila rufa Meigen (Diptera, Mycetophilidae) as a host for Orthocentrus stigmaticus Holmgren (Hymenoptera, Ichneumonidae). ACTA ZOOLOGICA BULGARICA, 32, pp.61-62. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1985_Sciophila_rufa_hymenoptera_parasite.pdf.

Bechev, D.N., 1986. New species from the superfamily Mycetophiloidea (Diptera) for Bulgarian fauna. 2. ACTA ZOOLOGICA BULGARICA, 32, pp.56-59. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1986_Fungus_gnats_Bulgaria_II.pdf.

Bechev, D.N., 1988. Two new species of Mycetophilidae from Bulgaria (Insecta, Diptera). REICHENBACHIA, 25, pp.185-186. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1988_n_sp_ectrepesthoneura_Mycetophila.pdf.

Bechev, D.N., 1988. Sciophila zaitzevi n. sp. from Bulgaria (Insecta, Diptera, Mycetophilidae). REICHENBACHIA, 25, pp.187-188. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1988_Sciophila_zaitzevi_n_sp.pdf.

Bechev, D.N., 1989. Larvae of Mycetophiloidea (Diptera) established in fungi in Bulgaria. NAUCHNI TRUDOVE PLOVDIVSKI UNIVERSITET "PAISII KHILENDARSKI", 27, pp.161-163. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1989_Mycetophilidae_larvae_in_Bulgaria.pdf.

Bechev, D.N., 1989. Monocentrota matilei n. sp. from Bulgaria and Algeria (Insecta, Diptera: Keroplatidae). REICHENBACHIA, 26, pp.173-174. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1989_Monocentrota_matilei_n_sp.pdf.

Bechev, D.N., 1989. New species Mycetophiloidea (Diptera) for Bulgarian fauna. 3. NAUCHNI TRUDOVE PLOVDIVSKI UNIVERSITET "PAISII KHILENDARSKI", 27, pp.153-159. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1989_Fungus_gnats_Bulgaria_III.pdf.

Bechev, D.N., 1990. Review of the Holarctic species of genus Polylepta Winnertz (Insecta, Diptera: Mycetophilidae). ENTOMOLOGISCHE ABHANDLUNGEN (DRESDEN), 53, pp.179-184. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1990_Polylepta_Holartic.pdf.

Bechev, D.N., 1990. Recent Holarctic species of the genus Anaclileia Meunier (Insecta, Diptera: Mycetophilidae). REICHENBACHIA, 28, pp.67-71. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1990_Anaclileia.pdf.

Bechev, D.N., 1990. New species Mycetophiloidea (Diptera) to the Bulgarian fauna. 4. NAUCHNI TRUDOVE PLOVDIVSKI UNIVERSITET "PAISII KHILENDARSKI", 28, pp.85-88. Available at: http://www.online-keys.net/sciaroidea/1981_90/Bechev_1990_Fungus_gnats_Bulgaria_IV.pdf.

Bechev, D.N., 1991. Macrocera gemagea sp. n. from Bulgaria (Insecta, Diptera: Mycetophiloidea). REICHENBACHIA, 28, pp.185-186. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1991_Macocera_gemagea_n_sp.pdf.

Bechev, D.N., 1992. A new species of genus Macrorrhyncha (Diptera: Keroplatidae) from Bulgaria. ACTA ZOOLOGICA BULGARICA, 45, pp.61-62. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1992_Macrorrhyncha_veleka_n_sp.pdf.

Bechev, D.N., 1994. Redescription of some types of Keroplatidae (Diptera, Mycetophiloidea). Deutsche Entomologische Zeitschrift, 41, pp.137-140, illustr. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1994_Redscription_Types_Keroplatidae.pdf.

Bechev, D.N., 1994. New species Mycetophiloidea (Diptera) to the Bulgarian fauna. NAUCHNI TRUDOVE PLOVDIVSKI UNIVERSITET "PAISII KHILENDARSKI", 29, pp.27-30.

Bechev, D.N., 1994. A new species of genus Truplaya Edw. from Madagascar (Insecta: Diptera: Keroplatidae). REICHENBACHIA, 30, pp.217-218. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1994_Truplaya_tulearica_sp_n.pdf.

Bechev, D.N., 1994. Three genera of Mycetophilidae new to the fauna of Sumatra and Java, with description of Zygomyia polyspina spec. nov. (Insecta: Diptera). REICHENBACHIA, 30, pp.191-192. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1994_Sumat_Jav_Zygomyia_polyspina_sp_n_1994.pdf.

Bechev, D.N., 1994. Sceptonia usambarensis spec. nov. from Tanzania (Insecta: Diptera: Mycetophilidae). REICHENBACHIA, 30, pp.189-190. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1994_Sceptonia_usambarensis_sp_n.pdf.

Bechev, D.N., 1994. New species Mycetophiloidea (Diptera) to the fauna of Bulgaria. 6. Plovdivski Universitet "Paisij Khilendarski" Nauchni Trudove Biologiya Animalia, 30, pp.25-28. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1994_Fungus_gnats_Bulgaria_VI.pdf.

Bechev, D.N., 1995. Allactoneura papuensis spec. nov. from New Guinea (Insecta: Diptera: Mycetophilidae). Reichenbachia, 31, pp.81-82, illustr. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1995_Allactoneura_papuensis_sp_n.pdf.

Bechev, D.N., 1995. The Palaearctic species of the genus Sceptonia Winnertz (Diptera: Mycetophilidae). Plovdivski Universitet "Paisij Khilendarski" Nauchni Trudove Biologiya Animalia, 31, pp.7-21, illustr. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1995_Palaearctic_Sceptonia.pdf.

Bechev, D.N., 1996. Macrocera kerteszi Lundstrom - a little known species (Diptera: Keroplatidae: Macrocerinae). Folia Entomologica Hungarica, 57, pp.77-78, illustr. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1996_Macrocera_kerteszi_n_sp.pdf.

Bechev, D.N., 1996. New species of fungus gnats (Diptera: Sciaroidea, excluding Sciaridae) to the fauna of Bulgaria. 7. Plovdivski Universitet "Paisij Khilendarski" Nauchni Trudove Biologiya Animalia, 32, pp.19-21. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1996_Fungus_gnats_Bulgaria_VII.pdf.

Bechev, D.N., 1997. Macrorrhyncha geranias thracica subspec. nov. from Greece (Insecta: Diptera: Keroplatidae). Reichenbachia, 32, pp.105-106, illustr. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1997_Macrorrhyncha_geranias_thracica_subsp_n.pdf.

Bechev, D.N., 1997. The genus Sceptonia Winnertz in the Oriental region (Insecta, Diptera, Mycetophilidae). Spixiana, 20, pp.181-182, illustr. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1997_Sceptonia_Oriental.pdf.

Bechev, D.N., 1997. Two new species of Mycetophilidae from Greece and the Netherlands (Insecta, Diptera, Nematocera). Spixiana, 20, pp.179-180, illustr. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1997_Leia_graeca_Sceptonia_demeijeri_n_sp.pdf.

Bechev, D.N., 1997. Check-list of the fungus gnats (Diptera: Sciaroidea, excluding Sciaridae) of the Balkan Peninsula. Plovdivski Universitet "Paisij Khilendarski" Nauchni Trudove Biologiya Animalia, 33, pp.9-22, illustr. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1997_Check_list_of_Balkan.pdf.

Bechev, D.N., 1998. The species of Allodia Winnertz on the Balkan Peninsula (Diptera, Mycetophilidae). Acta Zoologica Bulgarica, 50, pp.61-63, illustr. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1998_Allodia_Balkan.pdf.

Bechev, D.N., 1999. The zoogeographic classification of the Palaearctic genera of fungus gnats (Diptera: Sciaroidea, excluding Sciaridae). Studia Dipterologica, 6, pp.321-326, illustr. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1999_Palaearctic_Zoogeography_Sciaroidea.pdf.

Bechev, D.N., 1999. [Biotic connections of fungus gnats (Diptera: Sciaroidea, excluding Sciaridae) in forest habitats of Mount Pirin]. Plovdivski Universitet "Paisij Khilendarski" Nauchni Trudove Biologiya Animalia, 35, pp.37-40. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_1999_Biotic_connection_Pirin.pdf.

Bechev, D.N., 1999. Species of the genus Phronia Winnertz in Bulgaria (Diptera: Mycetophilidae). Acta Zoologica Bulgarica, 51, pp.39-42.

Bechev, D.N., 2000. Seasonal activity and vertical distribution of fungus gnats (Diptera: Sciaroidea, excluding Sciaridae) in the western and the central parts of Stara Planina Ridge (Bulgaria). Plovdivski Universitet "Paisij Khilendarski" Nauchni Trudove Biologiya Animalia, 36, pp.51-66. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_2000_Seasonal_activity_vertical.pdf.

Bechev, D.N., 2000. World distribution of the genera of fungus gnats (Diptera: Sciaroidea, excluding Sciaridae). Studia Dipterologica, 7, pp.543-552. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Bechev_2000_World_distribution.pdf.

Bechev, D.N., 2002. Orfelia gruevi spec. nov. from Bulgaria (Diptera: Sciaroidea: Keroplatidae). Acta Entomologica Slovenica, 10, pp.199-201. Available at: http://www.online-keys.net/sciaroidea/2000_/Bechev_2002_Orfelia_gruevi_n_sp.pdf.

Bechev, D.N., 2003. Corrections and additions to the check list of the fungus gnats in Bulgaria (Diptera : Sciaroidea). Plovdivski Universitet "Paisij Khilendarski" Nauchni Trudove Biologiya Animalia, 39, pp.97-99. Available at: http://www.online-keys.net/sciaroidea/2000_/Bechev_2003_additions_checklist_Bulgaria_Sciariodea.pdf.

Kolarov, J. & Bechev, D.N., 1995. Hymenopterenparasiten (Hymenoptera) auf Pilzmücken (Mycetophilidae, Diptera). Acta Entomologica Bulgarica, 2, pp.18-20. Available at: http://www.online-keys.net/sciaroidea/1991_2000/Kolarov_Bechev_1995_Hymenoptera_parasites.pdf.

Ivanova, E.N. & Bechev, D.N., 1994. Studies on the electrophoretic patterns of soluble proteins of Exechia peyerimhoffi and Exechia lundstroemi (Diptera: Mycetophilidae). NAUCHNI TRUDOVE PLOVDIVSKI UNIVERSITET "PAISII KHILENDARSKI", 29, pp.257-262. Available at: http://web.uni-plovdiv.bg/bechev/Bechev_pdfs/Ivanova&Bechev.pdf.