Amaurobiidae: Amaurobius C. L. Koch, 1837

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1
Opisthosoma dorsally dark grey to black, with irregular light spots

  2  

- Opisthosoma dorsally yellowish grey or light brown, in anterior part with black pattern

  5  

2
(1)

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Tibia of male pedipalp ventrally with pointed, bent apophysis; median epigynal part distinctly wider than long

Amaurobius erberi (Keyserling, 1863)

- Tibia of male pedipalp ventrally without pointed process; median epigynal part ± as long as wide

  3  

3
(2)

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Dorsal tibial apophysis with shallow, roundish bulge; lateral parts of epigyne rounded, median part ± semicircular

Amaurobius ferox (Walckenaer, 1830)

- Different

  4  

4
(3)

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Pedipalp as fig.; lateral epigynal parts pointed, median part ± triangular, rounded posteriorly; similar to ferox but the light spots on opisthosoma sometimes smaller

Amaurobius jugorum L. Koch, 1868

-

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Pedipalp as fig.; dorsal tibial apophysis longer and stronger bent than in jugorum; epigyne as fig.; receptacula more separated than in jugorum; eyes as fig.

Amaurobius crassipalpis Canestrini & Pavesi, 1870

5
(1)
Males

  6  

- Females

  10  

6
(5)
Dorsal tibial apophysis long and narrowly tapering

  7  

- Dorsal tibial apophysis at least basally very broad

  9  

7
(6)

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Lateral process of dorsal tibial apophysis straightly truncated; similar to fenestralis, sometimes pattern of opisthosoma more distinct

Amaurobius similis (Blackwall, 1861)

female

- Different

  8  

8
(7)

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Lateral process of dorsal tibial apophysis slender, median process long and slender

Amaurobius obustus L. Koch, 1868

female

-

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Lateral process of dorsal tibial apophysis broader, median process short and broad

Amaurobius ruffoi Thaler, 1990

female

9
(6)

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Retrolateral process of tibial apophysis distinctly narrowed;

Amaurobius fenestralis (Ström, 1768)

female

-

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Retrolateral process of tibial apophysis distally broadly rounded; opisthosoma dorsally in anterior part with a longish, dark spot, pointed posteriorly, broken into small chevrons in posterior half

Amaurobius pallidus L. Koch, 1868

female

10
(5)
Median epigynal part posteriorly narrower than anteriorly

  11  

- Median epigynal part broadly rounded posteriorly

  13  

11
(10)

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On each side of median epigynal part a fine tip; opisthosoma in anterior part with 4 black spots dorsally, often merged

Amaurobius fenestralis (Ström, 1768)

male

- Different

  12  

12
(11)

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Lateral epigynal parts reaching end of median part; opisthosoma dorsally in anterior part with a black square marking, becoming a dark longitudinal stripe posteriorly

Amaurobius obustus L. Koch, 1868

male

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Lateral epigynal parts reaching beyond median part posteriorly

Amaurobius ruffoi Thaler, 1990

male

13
(10)

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Epigyne with large trapezoid groove; similar to fenestralis, sometimes opisthosomal pattern more distinct

Amaurobius similis (Blackwall, 1861)

male

-

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Epigyne without groove

Amaurobius pallidus L. Koch, 1868

male

Further taxa

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1. Amaurobius annulatus (Kulczyński, 1906)

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2. Amaurobius antipovae Marusik & Kovblyuk, 2004

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3. Amaurobius ausobskyi Thaler & Knoflach, 1998

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4. Amaurobius barbarus Simon, 1911

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5. Amaurobius candia Thaler & Knoflach, 2002

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6. Amaurobius cerberus Fage, 1931

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7. Amaurobius cretaensis Wunderlich, 1995

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8. Amaurobius deelemanae Thaler & Knoflach, 1995

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9. Amaurobius drenskii Kratochvil, 1934

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10. Amaurobius geminus Thaler & Knoflach, 2002

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11. Amaurobius hercegovinensis Kulczyński, 1915

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12. Amaurobius kratochvili Miller, 1938

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13. Amaurobius latebrosus Simon, 1874

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14. Amaurobius lesbius Bosmans, 2011

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15. Amaurobius longipes Thaler & Knoflach, 1995

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16. Amaurobius minor Kulczyński, 1915

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17. Amaurobius occidentalis Simon, 1892

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18. Amaurobius ossa Thaler & Knoflach, 1993

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19. Amaurobius paon Thaler & Knoflach, 1993

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20. Amaurobius pavesii Pesarini, 1991

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21. Amaurobius pelops Thaler & Knoflach, 1991

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22. Amaurobius pesarinii Ballarin & Pantini, 2017

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23. Amaurobius phaeacus Thaler & Knoflach, 1998

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24. Amaurobius scopolii Thorell, 1871

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25. Amaurobius strandi Charitonov, 1937

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26. Amaurobius vachoni Hubert, 1965