The present state of the leech fauna (Annelida: Hirudinea) in Lithuania Author Šatkauskienė, Ingrida Department of Biology, Faculty of Natural Sciences, Vytautas Magnus University, Universiteto g. 10, 53361 Kaunas, Lithuania Author Rutkauskaitė-Sucilienė, Jurgita 0000-0003-4712-1865 Department of Biology, Faculty of Natural Sciences, Vytautas Magnus University, Universiteto g. 10, 53361 Kaunas, Lithuania & jurgita. rutkauskaite-suciliene @ vdu. lt; https: // orcid. org / 0000 - 0003 - 4712 - 1865 jurgita.rutkauskaite-suciliene@vdu.lt text Zootaxa 2022 2022-03-11 5115 1 47 62 journal article 20276 10.11646/zootaxa.5115.1.3 5a0c5291-d75d-4770-87d9-da7dbc45a0d0 1175-5326 6346023 87DEE6CD-8170-47B5-B570-47F5131DB25A Hemiclepsis marginata ( Müller, 1774 ) ( Figure 2C ) Material examined . Raseika (Nr. 1) n=2, 9.viii.2019 ; Išlaužas (Nr. 5), n=1, 21.viii.2018 ; Klibiai (Nr. 7), n=3, 4.vii.2018 ; Grūšlaukė (Nr. 9), n=1, vii.2019 ; Tūbinė (Nr. 10), n=2, 15.vii.2018 . Viešvilė (Nr. 12), n=1, 10.vi.2019 ; Šventoji (Nr. 20), n=1, 7.viii.2018 ; Siesartis (Nr. 23), n=2, 8.viii.2019 ;Akmena (Nr. 26), n=1, 2.ix.2019 ; Lampėdžiai (Nr. 37), n=1, 11.ix.2019 . Diagnosis. Body flat, leaf–shape. 20–30 mm length, and 3–4 mm width. Ventral surface pale, spotted with small dark dots, framed by colorful edge of body. Dorsal surface is mottled with greenish, yellow, and black dots. Dense punctured brown lines produce background of brown color. Four rows of light papillae and dark greenish dotted line continue in back side. Edges of body are streaked by alternating yellowish and brown colors. Oral sucker is leaf shape, clearly distinguishing from the body ( Fig. 2C ). The posterior sucker is round and well developed. H. marginata has two pairs of eyespots, anterior pair is smaller than posterior. Habitat. Hemiclepsis marginata is common in shallow margins of lakes and ponds overgrown by vegetation. Submerged plants and tree branches were a prevalent microhabitat of these leeches. Distribution. Palearctic species, common in Lithuania . During this study, the species was found in various regions of the country ( Table 1 ).