Table S1. Invertebrate consumed by Geoplaninae land planarians. Observation conditions, either in nature (nat) or in the laboratory (lab), and references are given in brackets; a hyphen indicates observation conditions as unavailable. Land flatworm species Invertebrate consumed Cephaloflexa araucariana Carbayo & Unidentified harvestman (Gonyleptidae, Opiliones) [nat, Carbayo & Leal-Zanchet, 2003 Leal-Zanchet 2003] Choeradoplana crassiphalla Negrete & Unidentified harvestman (Gonyleptidae, Opiliones) [nat, Negrete & Brusa, 2012 Brusa 2012] Geobia subterranea Schultze & Müller, Unidentified earthworm (Oligochaeta, Annelida) [nat and lab, 1857 Froehlich 1955] Geoplana chiuna E. M. Froehlich, 1955 Unidentified land snail (Gastropoda) [-, Froehlich 1956] incertae sedis Geoplana pavani Marcus, 1951, Unidentified small snails (Gastropoda) [lab, Froehlich 1956] incertae sedis Geoplana quagga Marcus, 1951, Freshwater snail Physa sp. (Gastropoda) [lab, Álvarez 1996] incertae sedis Land snail Bradybaena similaris (Ferussac, 1821) (Gastropoda) [lab, Álvarez 1996] Geoplana taxiarcha Marcus, 1951 Unidentified land planarians (Geoplanidae) [-, Froehlich 1956] Geoplana cf. vaginuloides (Darwin, Unidentified land snail (Gastropoda) [-, Froehlich 1956; nat, Bresslau 1844) (in Riester 1938)] Gigantea gouvernoni Jones & Sterrer, Unidentified land snail [nat, Jones & Sterrer 2005] 2005 Imbira marcusi Carbayo et al., 2013 Unidentified land snail (Gastropoda) [nat, Marcus 1951] Unidentified earthworm (Oligochaeta) [nat, Marcus 1951] Unidentified woodlice (Oniscidea, Isopoda) [lab., MC Ramos Issoca rezendei (Schirch, 1929) unpublished data] Luteostriata abundans (Graff, 1899) Woodlouse Armadillidium vulgare [lab, Boll & Leal-Zanchet 2016] Woodlouse Atlantoscia floridana (Van Name, 1940) (Oniscidea, Isopoda) [lab, Prasniski & Leal-Zanchet 2009] Woodlouse Balloniscus glaber [lab, Boll & Leal-Zanchet 2016] Woodlouse Balloniscus sellowii (Brandt, 1833) (Oniscidea, Isopoda) [lab, Prasniski & Leal-Zanchet 2009] Woodlouse Benthana cairensis [lab, Boll & Leal-Zanchet 2016] Woodlouse Benthana taeniata Araujo & Buckup, 1994 (Oniscidea, Isopoda) [lab, Prasniski & Leal-Zanchet 2009] Woodlouse Porcellio scaber [lab, Boll & Leal-Zanchet 2016] Woodlouse Trichorhina acuta Araujo & Buckup, 1994 (Oniscidea, Isopoda) [lab, Prasniski & Leal-Zanchet 2009] Woodlouse Trichorhina tomentosa (Budde-Lund, 1893) (Oniscidea, Isopoda) [lab, Prasniski & Leal-Zanchet 2009] Unidentified woodlice (Oniscidea, Isopoda) [lab, Hauser & Maurmann 1959, Boll & Leal-Zanchet 2016] Luteostriata caissara (E. M. Froehlich, Unidentified woodlice (Oniscidea, Isopoda) [nat, Bresslau (in Riester 1955) 1938)] Land flatworm species Invertebrate consumed Luteostriata ernesti (Leal-Zanchet & E. Unidentified woodlice (Oniscidea, Isopoda) [Froehlich 1956] M. Froehlich, 2006) Unidentified larva of Arthropoda, probably Diptera [nat, Froehlich Matuxia matuta (E.M. Froehlich, 1955) 1956] Matuxia tuxaua (E.M. Froehlich, 1955) Unidentified larva of a beetle (Coleoptera) [nat, Froehlich 1956] Obama anthropophila Land planarian Luteostriata abundans (Graff, 1899) (Geoplanidae) Amaral, Leal-Zanchet & Carbayo, 2015 [lab, Boll & Leal-Zanchet 2016] Land planarian Obama ladislavii (Graff, 1899) (Geoplanidae) [lab, Boll & Leal-Zanchet 2016] Land planarian Dolichoplana striata Moseley, 1877 (Geoplanidae) [lab, Boll & Leal-Zanchet 2016] Land slug Belocaulus sp. (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Land snail Helix aspersa Mueller, 1774 (Gastropoda) [lab, Boll & Leal-Zanchet 2015, 2016] Land planarian Endeavouria septemlineata (Hyman, 1939) (Geoplanidae) [lab, Boll et al. 2015, Boll & Leal-Zanchet 2016] Land slug Deroceras laeve (Müller, 1774) (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Land snail Bradybaena similaris (Férussac, 1821) (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Obama braunsi (Graff, 1899) Unidentified land snail (Gastropoda) [lab, M. S. Silva, pers. com.] Unidentified land slug (Gastropoda) [lab, M. S. Silva, pers. com.] Obama burmeisteri (Schultze& Müller, Freshwater snail Physa sp. (Gastropoda) [lab, Álvarez 1996] 1857) Unidentified land snail (Gastropoda) [-, Froehlich 1956] Unidentified snails (Gastropoda) [lab, Hauser & Maurmann 1959] Unidentified land slug (Gastropoda) [-, Froehlich 1956] Land slug Bradybaena similaris (Férussac, 1821) (Gastropoda) [lab, Álvarez 1996] Obama carinata (Riester, 1938) Unidentified garden snail (Gastropoda) [lab, Álvarez 1996] Freshwater snail Physa sp. (Gastropoda) [lab, Álvarez 1996] Land planarian Dolichoplana striata Correa, 1947 (Geoplanidae) [-, Obama carrierei (Graff, 1897) Marcus 1951] Land planarian Endeavouria septemlineata (Hyman, 1939) (Geoplanidae) [lab, Boll et al. 2015] Obama carrierei (Graff, 1897) var. Land planarian Luteostriata abundans (Graff, 1899) (Geoplanidae) brownish [lab, Hauser & Maurmann 1959] Obama evelinae (Marcus, 1951) Freshwater snail Physa sp. (Gastropoda) [lab, Álvarez 1996] Obama ficki (Amaral & Leal-Zanchet, Land snail Bradybaena similaris (Gastropoda) [lab, Boll & Leal- 2012) Zanchet 2015, 2016] Land snail Helix aspersa Mueller, 1774 (Gastropoda) [lab, Boll & Leal-Zanchet 2015, 2016] Land flatworm species Invertebrate consumed Land slug Deroceras laeve (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Land slug Meghimatium pictum (Gastropoda) [lab, Boll & Leal- Zanchet 2016] Land slug Sarasinula plebeia (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Obama josefi (Carbayo & Leal-Zanchet, Land planarian Endeavouria septemlineata (Hyman, 1939) 2001) (Geoplanidae) [lab, Boll et al. 2015] Land slug Bradybaena similaris (Férussac, 1821) (Gastropoda) [lab, Obama ladislavii (Graff, 1899) Boll & Leal-Zanchet 2015, 2016] Land snail Helix aspersa Mueller, 1774 (Gastropoda) [lab, Boll & Leal-Zanchet 2015, 2016] Land slug Deroceras laeve (Müller, 1774) (Gastropoda) [lab, Boll & Leal-Zanchet 2015, 2016] Land slug Belocaulus sp. (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Obama nungara Carbayo, Álvarez- Juvenile land snail Cochlicella acuta (Müller, 1774) (Gastropoda) Presas, Jones & Riutort, 2016 [lab, Carbayo et al 2016] Land planarian Endeavouria septemlineata (Hyman 1939) (Geoplanidae) [lab, Boll et al. 2015, Boll & Leal-Zanchet 2016] Land planarian Luteostriata abundans [lab, Boll & Leal-Zanchet 2016] Land planarian Dolichoplana striata [lab, Boll & Leal-Zanchet 2016] Land snail Bradybaena similaris (Férussac, 1821) (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Land snail Helix aspersa (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Land slug Deroceras laeve (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Land slug Belocaulus sp. (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Earthworm Eisenia andrei (Oligochaeta) [lab, Boll & Leal-Zanchet 2016] Earthworm Amynthas gracilis (Oligochaeta) [lab, Boll & Leal- Zanchet 2016] Earthworm Metaphire schmardae (Oligochaeta) [lab, Boll & Leal- Zanchet 2016] Dead cockroach Blaptica dubia (Serville, 1839) (Blatoidea, Insecta) [lab, Laia L. Florensa, in Carbayo et al 2016] Obama trigueira (E. M. Froehlich, Land planarian Xerapoa pseudorhynchodemus (Riester 1938) 1951) (Geoplanidae) [lab, Froehlich 1956] Paraba multicolor (Graff, 1899) Land planarian Dolichoplana striata [lab, Boll & Leal-Zanchet 2016] Land planarian Endeavouria septemlineata (Hyman 1939) (Geoplanidae) [lab, Boll et al. 2015, Boll & Leal-Zanchet 2016] Land planarian Luteostriata abundans [lab, Boll & Leal-Zanchet 2016] Land flatworm species Invertebrate consumed Unidentified land planarians (Geoplanidae) [-, Froehlich 1956] Freshwater snail Biomphalaria sp. (Gastropoda) [lab, Álvarez 1996] Freshwater snail Physa sp. (Gastropoda) [lab, Álvarez 1996] Land snail Helix aspersa (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Land slug Bradybaena similaris (Ferussac, 1821) (Gastropoda) [lab, Álvarez 1996] Land slug Deroceras laeve (Gastropoda) [lab, Boll & Leal-Zanchet 2016] Unidentified land snail (Gastropoda) [-, Froehlich 1956] Pasipha tapetilla (Marcus, 1951) Unidentified woodlice (Oniscidea, Crustacea) [-, Froehlich 1956] Xerapoa pseudorhynchodemus (Riester, Unidentified woodlice (Oniscidea, Crustacea) [-, Froehlich 1956; lab, 1938) Álvarez 1996] Unidentified spider (Arachnida) [nat, Marcus 1951] Unidentified Acari (Arachnida) [nat, Marcus 1951] Xerapoa sp. (see Froehlich, 1955) Unidentified small arthropod [-, Froehlich 1956] Unidentified arthropods, probably Acari or Apterygota [nat, Marcus Xerapoa trina (Marcus, 1951) 1951] .