"The system of the natural geographic territorial units";Abbreviations;"Number of species" "Nematocera (1672)";"Brachycera (3348)";"Total (5020)" "DANUBIAN PLAIN";D;"328 (19.6)";"566 (16.9)";"894 (17.8)" "Western Danubian Plain";DW;"219 (13.1)";"227 (6.8)";"446 (8.9)" "Middle Danubian Plain";DM;"210 (12.6)";"218 (6.5)";"428 (8.5)" "Eastern Danubian Plain";DE;"191 (11.4)";"367 (11.0)";"558 (11.1)" "Popovo-Provadiya district";E1;"154 (9.2)";"184 (5.5)";"338 (6.7)" "Loudogorie-Dobroudzha district";E2;"144 (8.6)";"271 (8.1)";"415 (8.3)" "STARA PLANINA RANGE SYSTEM";S;"719 (43.0)";"1026 (30.7)";"1745 (34.8)" Predbalkan;SP;"329 (19.7)";"426 (12.7)";"755 (15.0)" "Western Predbalkan";P1;"247 (14.8)";"234 (7.0)";"481 (9.6)" "Middle Predbalkan";P2;"198 (11.8)";"262 (7.8)";"432 (8.6)" "Eastern Predbalkan";P3;"19 (1.1)";"24 (0.7)";"43 (0.8)" "Stara Planina (Balkan) Mts.";SB;"542 (32.4)";"884 (26.4)";"1426 (28.4)" "Western Stara Planina (Balkan) Mts.";B1;"457 (27.3)";"515 (15.4)";"972 (19.4)" "Middle Stara Planina (Balkan) Mts.";B2;"198 (11.8)";"429 (12.8)";"627 (12.5)" "Eastern Stara Planina (Balkan) Mts.";B3;"23 (1.4)";"246 (7.3)";"269 (5.4)" "TRANSITIONAL REGION";T;"781 (46.7)";"1893 (56.6)";"2674 (53.3)" "Kraishte-Konyavo district";TK;"114 (6.8)";"143 (4.3)";"257 (5.1)" "Rouy Mt.";K1;;"1 (0.03)";"1 (0.02)" "Trun Basin (Znepole)";K2;;"17 (0.5)";"17 (0.3)" "Strazha-Cherna Gora-Rudini Mts.";K3;"29 (1.7)";"1 (0.03)";"30 (0.6)" "Golo Burdo Mt.";K4;"8 (0.5)";"15 (0.4)";"23 (0.5)" "Verila Mts.";K5;"2 (0.1)";;"2 (0.04)" Kraishte;K6;;"41 (1.2)";"41 (0.8)" "Zemenska Planina Mt.";K7;"38 (2.3)";"1 (0.03)";"39 (0.8)" "Konyavska Planina Mt.";K8;"53 (3.2)";"23 (0.7)";"76 (1.5)" "Kyustendil Basin";K9;"71 (4.2)";"77 (2.3)";"148 (2.9)" "Vitosha district";TV;"561 (33.6)";"1431 (42.8)";"1992 (39.7)" "Sofia Basin";V1;"257 (15.4)";"822 (24.6)";"1079 (21.5)" "Zavalska-Viskyar Mts.";V2;"1 (0.06)";"2 (0.06)";"3 (0.06)" "Lyulin Mt.";V3;"18 (1.1)";"66 (2.0)";"84 (1.7)" "Vitosha Mt.";V4;"329 (19.7)";"972 (29.0)";"1301 (25.9)" "Plana Mts.";V5;"81 (4.8)";"70 (2.1)";"151 (3.0)" "Srednogorie-Podbalkan subregion";TS;"192 (11.5)";"645 (19.3)";"837 (16.7)" "Podbalkan Basins";S1;"107 (6.4)";"397 (11.9)";"504 (10.0)" "Sredna Gora Mts.";S2;"101 (6.0)";"352 (10.5)";"453 (9.0)" "Ihtimanska Sredna Gora Mts.";S21;"90 (5.4)";"206 (6.1)";"296 (5.9)" "Lozenska Planina Mt.";S211;"65 (3.9)";"158 (4.7)";"223 (4.4)" "Sushtinska Sredna Gora Mts.";S22;"19 (1.1)";"77 (2.3)";"96 (1.9)" "Surnena Sredna Gora Mts.";S23;"8 (0.5)";"95 (2.8)";"103 (2.0)" "Thracian Lowland";TL;"200 (12.0)";"528 (15.8)";"728 (14.5)" "Toundzha-Strandzha subregion";TT;"192 (11.5)";"282 (8.4)";"474 (9.4)" "Sakar-Toundzha district";T1;"87 (5.2)";"53 (1.6)";"140 (2.8)" "Sakar Mt.";T11;"7 (0.4)";"39 (1.2)";"46 (0.9)" "Bakadzhik-Bourgas district";T2;"28 (1.7)";"66 (2.0)";"94 (1.9)" "Strandzha-Dervent district";T3;"119 (7.1)";"236 (7.0)";"355 (7.1)" "Strandzha Mts.";T31;"119 (7.1)";"236 (7.0)";"355 (7.1)" "RILA-RHODOPE MASSIF";R;"813 (48.6)";"1871 (55.9)";"2684 (53.5)" "Osogovo-Belasitsa group";RO;"248 (14.8)";"593 (17.7)";"841 (16.8)" "Osogovska Planina Mts.";O1;"4 (0.2)";"25 (0.7)";"29 (0.6)" "Vlahina Planina Mts.";O2;;"2 (0.06)";"2 (0.04)" "Maleshevska Planina Mts.";O3;;"22 (0.6)";"22 (0.4)" "Ograzhden Mts.";O4;;"47 (1.4)";"47 (0.9)" "Belasitsa Mts.";O5;"14 (0.8)";"201 (6.0)";"215 (4.3)" "Srednostroumska Valley";O6;"193 (11.5)";"515 (15.4)";"708 (14.1)" "Boboshevo-Simitli Valley";O61;"159 (9.5)";"172 (5.1)";"331 (6.6)" "Kroupnik-Sandanski-Petrich Valley";O62;"140 (8.4)";"432 (12.9)";"572 (11.4)" "Rila-Pirin group";RP;"525 (31.4)";"1117 (33.4)";"1642 (32.7)" "Rila Mts.";R1;"333 (19.9)";"716 (21.4)";"1049 (20.9)" "Pirin Mts.";R2;"233 (13.9)";"608 (18.2)";"841 (16.7)" "Slavyanka Mt.";R3;"14 (0.8)";"231 (6.9)";"245 (4.9)" "Sturgach Mt.";R4;"1 (0.06)";"42 (1.2)";"43 (0.8)" "Mesta Valley";R5;"114 (6.8)";"107 (3.2)";"221 (4.4)" "Rhodope Mts.";RR;"449 (26.8)";"1184 (35.4)";"1633 (32.5)" "Western Rhodope Mts.";RW;"385 (23.0)";"1018 (30.4)";"1403 (27.9)" "Eastern Rhodope Mts.";RE;"153 (9.1)";"383 (11.4)";"536 (10.7)" "BLACK SEA COAST";B;"367 (21.9)";"1025 (30.6)";"1392 (27.7)" "Northern Black Sea Coast";BN;"285 (17.0)";"710 (21.2)";"995 (19.8)" "Southern Black Sea Coast";BS;"165 (9.9)";"646 (19.3)";"811 (16.2)"