Earthworms of Belarus (Annelida: Megadrili) Author Shekhovtsov, Sergei V. Institute of Cytology and Genetics SB RAS, pr. Lavrientieva 10, 630090, Novosibirsk, Russia. & Institute of Biological Problems of the North FEB RAS, Portovaya 18, 685000, Magadan, Russia. Author Derzhinsky, Yevgeniy A. Vitebsk State University named after P. M. Masherov, Moskovskiy Avenue 33, 210038, Vitebsk, Belarus. Author Ermolov, Sergei A. Center for Forest Ecology and Productivity RAS, Profsoyuznaya 84 / 32 b. 14, 117997, Moscow, Russia. Author Kim-Kashmenskaya, Maria N. Department of General Biology and Ecology, Novosibirsk State University, Pirogova 2, 630090, Novosibirsk, Russia. mashust @ gmail. com Author Poluboyarova, Tatiana V. Institute of Cytology and Genetics SB RAS, pr. Lavrientieva 10, 630090, Novosibirsk, Russia. Author Kotsur, Vladimir M. Vitebsk State University named after P. M. Masherov, Moskovskiy Avenue 33, 210038, Vitebsk, Belarus. Author Golovanova, Elena V. Omsk State Pedagogical University, Naberezhnaya Tukhachevskogo 14, 644099, Omsk, Russia. text Zootaxa 2023 2023-03-15 5255 1 38 61 http://dx.doi.org/10.11646/zootaxa.5255.1.9 journal article 54946 10.11646/zootaxa.5255.1.9 04637a6f-bd64-4f74-aadd-e8d2549c8b35 1175-5326 7745192 3C842746-485F-4B1F-AC1D-F885AC4C4DFC Octolasion lacteum (Örley) Octolasium lacteum : Michaelsen, 1910: 70 ; Malevich 1953: 41 ; Perel 1979: 204 ; Octolasion lacteum : Maksimova & Mukhin 2015: 59 . Octolasion tyrtaeum : Shekhovtsov et al. 2014 . A widespread peregrine species. Endogeic. Distribution ( Fig. 2c ): Brest Reg. : Baranovichi Distr. , 53°12’29.45”N , 26°06’35.53”E , black alder forest on the bank of Shchara River , 04.05.2019 , 29 ex. ; Bereza Distr. , 52°26’48.66”N , 24°58’19.20”E , cultivated meadow, 04.05.2019 , 1 ex. ; Drogichin Distr. , Yamnik vill. env., 52°04’2.42”N , 24°56’34.58”E , mineral island in Zvanets fen, oak grove, 05.05.2019 , 5 ex. ; Kamenets Distr. , 3.4 km SE of Lyatskie vill., 52°35’17.88”N , 23°52’30.32”E , hornbeam oak forest with spruce, 06.05.2019 , 4 ex. ; Kobrin Distr. , 52°14’5.10”N , 24°24’47.27”E , meadow in the floodplain of Mukhavets River , 06.05.2019 , 8 ex. ; Pinsk Distr. , Konyukhi vill. env., 52°0’53.66”N , 26°25’21.38”E , floodplain of Styr River , 17.05.2014 , 1 ex. ; Pruzhany Distr. , Vybrody vill., 52°44’26.16”N , 24°11’47.44”E , black alder forest, 07.05.2019 , 28 ex. Gomel Reg. : Chechersk Distr. , Volosovichi vill. env., 52°59’10.68”N , 31°09’16.09”E , black alder forest, 16.05.2020 , 1 ex. , Krasnyj Bereg vill., 52°56’16.30”N , 30°56’37.14”E , bank of Sozh River , willow bushes, 16.05.2020 , 11 ex. ; Gomel Distr. , Dobrush vill., 52°10’42.76”N , 30°43’13.39”E , canal bank, 16.05.2020 , 2 ex. ; Bragin Distr. , Vyal’e vill. env., 51°32’18.89”N , 30°29’40.65”E , black alder forest with Carex , 2 ex. ; Vyal’e vill. env., 51°33’16.50”N , 30°30’4.30”E , edge of Morozovka Riv. floodplain, forest litter and soil, 1 ex. ; Loev Distr. , Sutkovo vill. env., 52°01’54.77”N , 30°41’32.68”E , black alder forest, 15.05.2020 , 2 ex. ; Mozyr Distr. , Mozyr town, 52°01’50.41”N , 29°15’24.98”E , deciduous forest in a ravine, 13.05.2020 , 3 ex. ; Strel’sk vill. env., 51°56’44.70”N , 29°26’32.10”E , hornbeam-oak forest, 12.05.2014 , 1 ex. ; same location, hornbeam-oak forest in the ravine, under the bark of fallen trees and in the soil, 13.05.2020 , 5 ex. , shrubs on the Pripyat’ River bank, 3 ex. ; Rechitsa Distr. , Rudnya Zhigal’skaya , 52°09’55.15”N , 30°37’14.89”E , meadow in the floodplain of Dnieper River , 20.10.2020 , 6 ex. ; Rudnya Zhigal’skaya vill. env., 52°09’54.97”N , 30°37’06.63”E , floodplain of Dnieper River , willow grove, 14.05.2020 , 11 ex. ; Svetlogorsk Distr. , 2.5 km N of Chirkovichi vill., 52°40’55.51”N , 29°39’34.90”E , meadow and willow bushes in floodplain of Berezina River , 28.07.2020 , 28 ex. ; Zhitkovichi Distr. , Sluch station env., Sluch River grassy floodplain, 52°13’13.19”N , 27°32’58.74”E , 23.07.2020 , 15 ex. ; Hlupin vill. env., 52°04’12.97”N , 28°09’20.27”E , floodplain oak forest, bank of lake, in the soil, 23.07.2020 , 26 ex. ; 2 km NE of Hlupin vill., 52°04’6.58”N , 28°09’22.68”E , floodplain oak forest, 13.05.2014 , 1 ex. Grodno Reg. : Ashmyany Distr. , Kozlovschina vill. env., 54°12’51.23”N , 25°57’58.10”E , black alder grove with maple, near the river, 08.05.2019 , 22 ex. ; Smorgon Distr. , 54°22’17.36”N , 26°22’43.21”E , black alder grove in stream valley, 08.05.2019 , 1 ex. ; same location, meadow with cereals, 3 ex. ; same location, edge of field with Urtica sp. , 7 ex. ; Krevo settl., 54°18’32.78”N , 26°16’59.38”E , lawn near the castle, under the stones, 08.05.2019 , 1 ex. ; Volkovysk Distr. , Yubilejny vill., 53°15’45.90”N , 24°34’15.38”E meadow near the pond, 07.05.2019 , 1 ex. ; 2 km NW of Neverovichi vill., 53°16’42.49”N , 24°32’51.90”E , wasteland, ditch near the chalk quarry, 07.05.2019 , 5 ex. Minsk Reg. : Dzerzhinsk Distr. , 53°37’53.29”N , 27°03’35.60”E , black alder forest, 04.05.2019 , 3 ex. ; Kletsk Distr. , Gritsevichi vill. env., 52°58’05.05”N , 26°42’41.98”E , meadow in the floodplain of Lan’ River , 09.08.2020 , 29 ex. ; Krupki Distr. , 54°26’31.13”N , 29°18’43.06”E , field, 28.08.2020 , 2 ex. ; Logoisk Distr. , Pleshchenitsy vill. env., 54°24’9.68”N , 27°52’47.10”E , 04.05.2019 , 1 ex. ; Gorbovshchina vill. env., 54°27’38.70”N , 27°37’18.30”E , black alder forest with Urtica sp. , 08.08.2020 , 5 ex. ; Molodechno Distr. , Molodechno env., 54°19’19.02”N , 26°55’27.01”E , meadow in Usha River floodplain, 08.08.2020 , 4 ex. ; Myadel Distr. , bank of Myadel Lake , 54°57’07.02”N , 26°51’23.44”E , black alder forest, 09.05.2019 , 14 ex. ; bank of Rossokhi Lake , 54°58’17.83”N , 26°52’12.14”E , black alder forest, 09.05.2019 , 6 ex. Puhovichi Distr. , Pestun vill. env., 53°32’30.80”N , 28°18’19.69”E , meadow in Svisloch’ River floodplain, 12.08.2020 , 27 ex. ; Slutsk Distr. , Chervonaya Storonka vill. env., 53°08’42.28”N , 27°51’35.30”E , black alder forest with Carex , 10.08.2020 , 9 ex. ; Staryya Darohi Distr. , Solon vill. env., 53°02’33.07”N , 28°09’4.97”E , black alder forest with Urtica sp. , 11.08.2020 , 1 ex. ; Stolbtsy Distr. , Sula vill. env., 53°35’27.60”N , 26°40’14.09”E , black alder forest, 5 ex. ; Minsk , 53°54’49.28”N , 27°36’30.67”E , botanical garden, flower bed, 05.06.2020 , 16 ex. , tree nursery, 1 ex. , compost, 5 ex. Mogilev Reg.: Byalynichy Distr., Rudnya vill. env., 53°56’35.99”N , 29°38’47.80”E , wet meadow with black alder trees in stream valley, 12.08.2020 , 8 ex. ; Bykhov Distr., Prybor vill. env., 53°28’23.44”N , 30°20’18.06”E , floodplain meadow in Dnieper River valley, 09.05.2014 , 1 ex. Glusk Distr., Simonovichi vill. env., 53°04’14.48”N , 28°35’52.84”E , drained black alder forest, 10.08.2020 , 6 ex. ; Klimavichy Distr., Lozovitsa vill. env., 53°32’24.25”N , 32°04’30.29”E , black alder forest with Filipendula sp. and Urtica sp. , 17.05.2020 , 4 ex. ; Kostsyukovichy Distr., Kolodlivo vill., 53°14’46.61”N , 32°01’24.28”E , meadow in Besed’ River floodplain, 16.05.2020 , 1 ex. ; Krichev Distr., Krichev env., 53°42’31.54”N , 31°44’51.86”E , meadow in Sozh River flooplain, 17.05.2020 , 45 ex. ; Nanoskovo vill. env., 53°47’58.78”N , 31°48’57.20”E , bank of Oster River, 17.05.2020 , 9 ex. ; Osipovichi Distr., Dubrova vill. env., 53°27’43.56”N , 28°37’44.93”E , hornbeam-spruce-oak grove, 10.05.2014 , 1 ex. ; Lapichi vill. env., 53°24’44.93”N , 28°29’12.70”E , black alder forest in Svisloch River floodplain, 10.08.2020 , 2 ex. ; Slavgorod Distr., 2 km S of Gaishin vill., 53°19’18.14”N , 31°00’25.19”E , Salix shrubs in Sozh River valley, 28.07.2020 , 2 ex. ; Shklow Distr., Bolshoj Staryj Shklov vill., 54°12’11.44”N , 30°15’2.79”E , meadow in Serebryanka River valley, 03.08.2020 , 2 ex. Vitebsk Reg. : Braslav Distr. , Braslav , 55°38’30.89”N , 27°02’26.71”E , lawn, 10.05.2019 , 1 ex. ; 5 km N of Dubrovka vill., 55°23’39.30”N , 26°56’56.90”E , Bel’mont forest , 28.09.2019 , 82 ex. ; Ahremovtsy vill., 55°34’53.62”N , 27°06’32.36”E , Bel’mont park, 28.09.2019 , 4 ex. ; Chashniki Distr. , Pochaevichi vill. env., 54°47’49.31”N , 29°08’03.37”E , pasture, 28.08.2020 , 6 ex. ; Glubokoye Distr. , Osinovka vill. env., 55°12’45.72”N , 28°14’35.56”E , grey alder forest, stream valley, Sho Lake env., 09.05.2019 , 8 ex. ; Dokshitsy Distr. , Begoml env., 54°43’53.26”N , 28°07’28.88”E , cultivated meadow, 03.05.2019 , 4 ex. ; Zamostoch’e vill. env., 54°39’17.60”N , 27°55’56.60”E , spruce forest, in the soil under logs and in decaying wood, 08.08.2020 , 1 ex. ; Miory Distr. , 1.5 km SW of Dolginovo vill., 55°43’48.72”N , 27°46’35.94”E , Volta River valley , mixed coniferous forest, 28.09.2019 , 6 ex. ; Miory town , 55°37’15.24”N , 27°36’06.84”E , garden, 20.10.2019 , 1 ex. ; Orsha Distr. , Zaslonovka vill., 54°31’03.00”N , 30°17’51.00”E , under the fallen tree, 08.05.2019 , 2 ex. ; Zabolotye vill., 54°32’24.36”N , 30°16’47.64”E , mixed coniferous forest, 16.08.2019 , 6 ex. ; Postavy Distr. , 55°04’16.82”N , 27°24’03.20”E , grey alder forest, 09.05.2019 , 5 ex. ; Rossony Distr. , Mezhevo vill. env., 55°56’49.13”N , 28°53’24.65”E , black alder forest, 18.08.2020 , 21 ex. ; Tofeli vill. env., 55°47’52.76”N , 28°53’34.26”E , black alder forest, 18.08.2020 , 13 ex. ; Senno Distr. , Senno env., 54°48’21.06”N , 29°38’50.89”E , field, cereals, 28.08.2020 , 1 ex. ; Luzhki station env., 54°45’38.56”N , 30°16’20.35”E , Dobrin’ka River vall., black alder forest, 13.06.2020 , 24 ex. ; Talachyn Distr. , Ozertsy vill., 54°25’26.40”N , 29°46’01.92”E , park, 07.10.2019 , 3 ex. Verkhnedvinsk Distr. , Sar’ya vill., 55°54’38.52”N , 27°53’18.96”E , park, under the bark of fallen trees and in the soil, 29.09.2019 , 3 ex. ; Vitebsk Distr. , Luchesa station env., 55°08’58.67”N , 30°12’45.31”E , mixed coniferous forest, under the fallen tree, 11.11.2019 , 1 ex. ; Vitebsk , 55°10’37.45”N , 30°10’21.47”E , lawn, 21.11.2019 , 7 ex. ; Grishany vill., 55°10’55.55”N , 30°07’07.15”E , meadow, 17.08.2020 , 1 ex. ; Luzhesno vill., 55°15’12.37”N , 30°08’37.13”E , Luzhesnyanka River valley , 18.08.2020 , 1 ex. , forest, 1 ex. ; Shultsevo vill., 55°08’31.66”N , 30°18’33.35”E , garden, 17.08.2020 , 1 ex. Note: O. lacteum is known to be represented by populations with different body size (Heethoff et al. 2003). In Belarus , it is represented by three genetic lineages ( Shekhovtsov et al. 2014 , 2020b ). It might be possible that these lineages represent distinct taxa.