Octolasion lacteum (Örley)

Shekhovtsov, Sergei V., Derzhinsky, Yevgeniy A., Ermolov, Sergei A., Kim-Kashmenskaya, Maria N., Poluboyarova, Tatiana V., Kotsur, Vladimir M. & Golovanova, Elena V., 2023, Earthworms of Belarus (Annelida: Megadrili), Zootaxa 5255 (1), pp. 38-61 : 50-52

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.

Figures

FIGURE 2. Distribution of earthworms in Belarus. A, L. terrestris; B, L. castaneus; C, O. lacteum; D, square: O. cyaneum, circle: O. transpadanus; E, B. rubidus; F, D. octaedra.