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1
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Males 2 |
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Females 14 |
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2 (1)


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Patellar apophysis missing; Prosoma as fig. female unknown Erigone jaegeri Baehr, 1984
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Patellar apophysis present 3 |
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3 (2)


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Patellar apophysis projecting; colour light orange to yellow-brown; sternum and opisthosoma slightly blackish; eye field contrastingly black Erigone autumnalis Emerton, 1882

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Patellar apophysis and colour different 4 |
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4 (3) |
Patellar apophysis rectangularly projecting 8 |
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Patellar apophysis projecting less than 90° from patella and directed away from cymbium 5 |
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5 (4)


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Tibia with strongly projecting apophysis Erigone svenssoni Holm, 1975

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Different 6 |
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6 (5)


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Tibial apophysis with a distinctly bilobed part next to pointed part Erigone dentipalpis (Wider, 1834)

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Different 7 |
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7 (6)


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Dorsal process of tibial apophysis pointed-triangular Erigone aletris Crosby & Bishop, 1928

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Tibial apophysis with a short, stout tooth Erigone capra Simon, 1884

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8 (4)


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Patellar apophysis strikingly long, approximately rectangularly projecting, tip distinctly bent backwards Erigone psychrophila Thorell, 1871

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Different 9 |
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9 (8) |
Tibial apophysis with a median process 10 |
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Tibial apophysis without a median process 13 |
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10 (9) |
Median process of tibial apophysis rounded 11 |
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Median process of tibial apophysis with one or two pointed teeth 12 |
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11 (10)


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Tibial apophysis with a medially rounded, flat process Erigone atra Blackwall, 1833

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Tibial apophysis with a stronger protruding, rounded process as fig.; sides of patellar apophysis ± parallel; terminal appendix as fig. Erigone remota L. Koch, 1869

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12 (10)


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Median process of tibial apophysis with two crossing denticles Erigone longipalpis (Sundevall, 1830)

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Median process of tibial apophysis with two denticles arranged in a row (Additional remark: Holm (1956) distinguishes the north European subspecies maritima from Canadian and Sibiric populations) Erigone arctica arctica (White, 1852)

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13 (9)


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Dorsal process of tibial apophysis rounded Erigone promiscua (O. Pickard-Cambridge, 1873)

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Pedipalp as fig. Erigone tirolensis L. Koch, 1872

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14 (1)


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Epigynal plate roundish posteriorly, with median groove Erigone remota L. Koch, 1869

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Different 15 |
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15 (14) |
Posterior epigynal margin distinctly U-like indented medially or with a shallow groove 16 |
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Posterior epigynal margin only slightly bent medially 19 |
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16 (15)


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Posterior epigynal margin deeply U-like indented Erigone longipalpis (Sundevall, 1830)

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Posterior epigynal margin with a shallow groove 17 |
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17 (16)


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Lateral protruding area of epigynal plate semicircularly sclerotised Erigone capra Simon, 1884

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Different 18 |
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18 (17)


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Epigyne lifted and in posterior view with ± triangular median part, distinctly bordered by sclerotised area anteriorly Erigone psychrophila Thorell, 1871

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Epigyne lifted and in posterior view not bordered by sclerotised area anteriorly Erigone tirolensis L. Koch, 1872

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19 (15)


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Epigynal plate laterally with two circular depressions Erigone arctica arctica (White, 1852)

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Epigynal plate different, more or less unstructured 20 |
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20 (19) |
Epigynal plate distinctly bordered laterally 21 |
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Epigynal plate laterally different, semicircular 22 |
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21 (20)


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Epigynal plate almost twice as wide as long Erigone atra Blackwall, 1833

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Epigynal plate ± as long as wide Erigone dentipalpis (Wider, 1834)

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22 (20) |
Posterior epigynal margin with two uniformly bent protrusions 23 |
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Different 24 |
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23 (22)


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Receptacula seminis distinctly shining through epigyne; epigyne lifted and in posterior view ± quadrangular Erigone promiscua (O. Pickard-Cambridge, 1873)

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Receptacula seminis not visible through epigyne; epigyne lifted and in posterior view ± triangular Erigone aletris Crosby & Bishop, 1928

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24 (22)


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Epigyne only in posterior area with transverse folds Erigone autumnalis Emerton, 1882

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Epigyne in whole length with transverse folds Erigone svenssoni Holm, 1975

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| 1. Erigone arctica palaearctica Brændegaard, 1934 |
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| 2. Erigone arcticola Chamberlin & Ivie, 1947 |
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| 3. Erigone cristatopalpus Simon, 1884 |
 Pedipalp, retrolateral view (Muster & Hänggi 2009)
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 Pedipalp, ventral view (Muster & Hänggi 2009)
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 Pedipalp, retrolateral view (Wiśniewski & Wesołowska 2017)
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 Pedipalp, ventral view (Wiśniewski & Wesołowska 2017)
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 Pedipalp, ventral view (Wiśniewski & Wesołowska 2017)
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 Pedipalp, retrolateral view (Hirna & Yanul 2023)
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 Pedipalp, ventral view (Hirna & Yanul 2023)
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 Embolic division, prolateral-ventral view (Muster & Hänggi 2009)
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 Palpal tibia, retrolateral view (Muster & Hänggi 2009)
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 Palpal tibia, dorsal view (Wiśniewski & Wesołowska 2017)
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 Chelicera (Muster & Hänggi 2009)
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 Cheliceral teeth (Wiśniewski & Wesołowska 2017)
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 Vulva, dorsal view (Muster & Hänggi 2009)
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 Chelicera (Muster & Hänggi 2009)
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| 4. Erigone dentosa O. Pickard-Cambridge, 1894 |
 Pedipalp, retrolateral view (Unruh 2020)
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 Pedipalp with tibia, patella and femur, retrolateral view (Arco et al. 2019)
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 Pedipalp with tibia, patella and femur, retrolateral view (Crosby & Bishop 1928)
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 Pedipalp with tibia, patella and femur, retrolateral view (Kielhorn 2022)
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 Pedipalp with tibia, patella and femur, retrolateral view (Berry 2022)
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 Pedipalp, retrolateral view (Déjean & Verhoogt 2022)
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 Pedipalp with tibia and patella, retrolateral view (Déjean & Verhoogt 2022)
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 Pedipalp with tibia and patella, retrolateral view (Déjean & Verhoogt 2022)
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 Pedipalp with tibia and patella, retrolateral view (Hänggi et al. 2022)
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 Pedipalp, prolateral view (Coşar et al. 2024b)
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 Pedipalp, retrolateral view (Coşar et al. 2024b)
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 Pedipalp with tibia, patella and femur, prolateral view (Coşar et al. 2024b)
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 Pedipalp with tibia, patella and femur, retrolateral view (Coşar et al. 2024b)
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 Pedipalp, ventral view (Coşar et al. 2024b)
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 Pedipalp, ventro-prolateral view (Coşar et al. 2024b)
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 Pedipalp with tibia, patella and femur, retrolateral view (Martín & Adame 2024)
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 Tip of pedipalp, prolateral view (Løvbrekke unpubl.)
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 Embolic division, anterior view (Crosby & Bishop 1928)
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 Embolic division, mesal view (Crosby & Bishop 1928)
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 Palpal patella, retrolateral view (Unruh 2020)
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 Palpal tibia and patella, retrolateral view (Løvbrekke unpubl.)
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 Palpal femur, retrolateral view (Løvbrekke unpubl.)
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 Palpal tibia, patella and femur, retrolateral view (Kekenbosch & Baert 2013)
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 Palpal tibia, dorsal view (Løvbrekke unpubl.)
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 Palpal tibia, prolateral view (Løvbrekke unpubl.)
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 Palpal tibia, retrolateral view (Løvbrekke unpubl.)
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 Chelicerae, frontal view (Déjean & Verhoogt 2022)
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 Chelicera, frontal view (Løvbrekke unpubl.)
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 Habitus, frontal view (Coşar et al. 2024b)
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 Epigyne (Crosby & Bishop 1928)
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 Epigyne (Berry 2022)
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 Epigyne (Déjean & Verhoogt 2022)
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 Epigyne, frontal view (Løvbrekke unpubl.)
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 Vulva, dorsal view (Berry 2022)
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 Vulva, dorsal view (Déjean & Verhoogt 2022)
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 Vulva, dorsal view (Hänggi et al. 2022)
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 Vulva, dorsal view (Unruh 2020)
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 Vulva, ventral view (Løvbrekke unpubl.)
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 Vulva, dorsal view (Løvbrekke unpubl.)
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| 5. Erigone dumitrescuae Georgescu, 1969 |
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| 6. Erigone hypoarctica Eskov, 1989 |
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| 7. Erigone jugorum Simon, 1884 |
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| 8. Erigone longipalpis pirini Deltshev, 1983 |
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| 9. Erigone maritima Kulczyński, 1902 |
 Pedipalp (Tyschchenko 1971)
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 Pedipalp (Roberts 1987)
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 Pedipalp (Wiehle 1960a)
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 Pedipalp, retrolateral view (Marusik et al. 2006b)
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 Pedipalp, retrolateral view (Marusik et al. 2006b)
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 Pedipalp, ventral view (Marusik et al. 2006b)
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 Pedipalp in detail (Marusik et al. 2006b)
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 Pedipalp, retrolateral view (Løvbrekke unpubl.)
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 Apical part of bulbus, dorsal view (Løvbrekke unpubl.)
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 Apical part of bulbus, dorsal view (Løvbrekke unpubl.)
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 Tip of pedipalp, prolateral view (Løvbrekke unpubl.)
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 Embolus, dorsal view (Løvbrekke unpubl.)
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 Embolic division, prolateral view (Løvbrekke unpubl.)
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 Lateral apophysis (Wiehle 1960a)
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 Patellar and tibial apophysis (Wiehle 1960a)
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 Palpal tibia and patella, retrolateral view (Løvbrekke unpubl.)
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 Palpal tibia (Holm 1956)
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 Palpal tibia (Holm 1956)
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 Palpal tibia (Holm 1956)
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 Palpal tibia, dorsal view (Løvbrekke unpubl.)
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 Palpal tibia, prolateral view (Løvbrekke unpubl.)
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 Palpal tibia, retrolateral view (Løvbrekke unpubl.)
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 Tibial apophysis (Locket et al. 1974)
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 Tibial apophysis (Roberts 1987)
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 Tibial apophysis (Locket & Millidge 1953)
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 Tibial apophysis (Locket & Millidge 1953)
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 Epigyne (Locket & Millidge 1953)
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 Epigyne (Locket & Millidge 1953)
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 Epigyne (Roberts 1987)
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 Epigyne, lifted (Roberts 1987)
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 Epigyne (Tyschchenko 1971)
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 Epigyne (Wiehle 1960a)
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 Epigyne, ventral view (Løvbrekke unpubl.)
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 Epigyne, ventral view (Løvbrekke unpubl.)
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 Epigyne (Løvbrekke unpubl.)
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 Epigyne, frontal view (Løvbrekke unpubl.)
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 Vulva (Locket et al. 1974)
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 Vulva (Holm 1956)
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 Vulva (Wiehle 1960a)
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 Vulva, dorsal view (Løvbrekke unpubl.)
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 Vulva, dorsal view (Løvbrekke unpubl.)
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| 10. Erigone nigrimana Thorell, 1875 |
 -- Caption missing -- (WSC 2025) |
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| 11. Erigone remota dentigera Simon, 1926 |
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| 12. Erigone tenuimana Simon, 1884 |
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| 13. Erigone welchi Jackson, 1911 |
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| 14. Erigone whymperi O. Pickard-Cambridge, 1877 |
 Pedipalp, ventral view (Marusik et al. 2006b)
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 Pedipalp, retrolateral view (Marusik et al. 2006b)
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 Pedipalp, retrolateral view (Marusik et al. 2006b)
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 Pedipalp, lateral view (Tanasevitch & Koponen 2007)
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 Pedipalp (Tanasevitch & Koponen 2007)
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 Embolic division (Tanasevitch & Koponen 2007)
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 Embolic division (Tanasevitch & Koponen 2007)
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 Tooth of embolic division (Tanasevitch & Koponen 2007)
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 Tooth of embolic division (Tanasevitch & Koponen 2007)
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 Tooth of embolic division (Tanasevitch & Koponen 2007)
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 Tooth of embolic division (Tanasevitch & Koponen 2007)
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 Palpal femur (Tanasevitch & Koponen 2007)
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 Palpal tibia, lateral view (Tanasevitch & Koponen 2007)
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 Palpal tibia, lateral view (Tanasevitch & Koponen 2007)
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 Palpal tibia, lateral view (Tanasevitch & Koponen 2007)
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 Palpal tibia, lateral view (Tanasevitch & Koponen 2007)
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 Palpal tibia (Tanasevitch & Koponen 2007)
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 Epigyne, dorsal view (Tanasevitch & Koponen 2007)
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 Epigyne, dorsal view (Tanasevitch & Koponen 2007)
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 Epigyne, dorsal view (Tanasevitch & Koponen 2007)
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 Epigyne, dorsal view (Tanasevitch & Koponen 2007)
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 Vulva (Tanasevitch & Koponen 2007)
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 Vulva (Tanasevitch & Koponen 2007)
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