Lycosidae: Arctosa C. L. Koch, 1847

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1
Males

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- Females

  11  

2
(1)

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Prosoma lateral with 3-4 spots; prosoma length of males 3.1-3.2 mm; prosoma olive-brown, median band bright, weakly star-shaped; legs red-brown; coxa and femur yellowish; opisthosoma yellow with single black hairs; cardiac mark distinct, white haired; posterior to cardiac mark with 4-5 bright, triangular spots, laterally 2 yellow spots; pedipalp as fig.

Arctosa lutetiana (Simon, 1876)

female

- Different

  3  

3
(2)

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Cardiac mark on opisthosoma broadened anteriorly; prosoma length 3.6-3.8 mm; prosoma red-brown, with black dots; legs reddish with dark spots on femur; opisthosoma reddish; cardiac mark white-yellowish, bordered with black, posterior to cardiac mark 2-3 dark spots, laterally 2-3 round, black spots from which running fine white lines; male pedipalp as fig.

Arctosa alpigena (Doleschall, 1852)

female

- Different

  4  

4
(3)

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Pedipalp tibia distally with 2 projections; prosoma length about 3.8 mm; prosoma yellow-reddish, medially with serrated band, laterally with stripes consisting of 4-5 bright, irregular and ± merging dots; legs yellowish, annulated basally

Arctosa figurata (Simon, 1876)

female

- Pedipalp tibia distally without projections

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(4)
Tegular apophysis ± triangular due to ventral fold, bent toward median part of pedipalp

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- Tegular apophysis ends with a ± finger-shaped, basally directed process

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Spines on metatarsus I and II conspicuously short; spines on tibia I reduced or lacking; cheliceral furrow margin with 2 or 3 teeth on inner side; upper part of bulbus with 2 ± pointed projections

  7  

- Spines on metatarsus I-II and tibia I not conspicuously reduced or lacking; cheliceral furrow margin with 3 teeth on inner side; upper part of bulbus with 1 ± pointed projection

  8  

7
(6)

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Cheliceral furrow margin with 2 teeth; pedipalp as fig.; prosoma length 5.3-6.0 mm; prosoma red-brown, light median band weakly serrated, lateral bands narrow, indistinct and often broken; legs reddish yellow; femur spotted with brown

Arctosa fulvolineata (Lucas, 1846)

female

-

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Cheliceral furrow margin with 3 teeth; pedipalp as fig; prosoma length 3.8-4.8 mm; prosoma reddish, bright median band broad anteriorly, narrow and serrated posteriorly, lateral bands striking; legs yellow-reddish, annulated

Arctosa personata (L. Koch, 1872)

female

8
(6)

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Prosoma compact, plump; prosoma length 4.7-5.4 mm; basic colouration greenish yellow; legs indistinctly annulated; pedipalp as fig.

Arctosa cinerea (Fabricius, 1777)

female

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Prosoma narrow, slender; prosoma length 3.0-3.9 mm; colouration brown; legs distinctly annulated; pedipalp as fig.

Arctosa perita (Latreille, 1799)

female

9
(5)

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Yellowish median stripe on opisthosoma parallel-sided in anterior part, distinctly marked off from remaining dark opisthosomal colour; tegular apophysis medially with triangular and pointed projection; prosoma length 3.0-4.1 mm

Arctosa leopardus (Sundevall, 1833)

female

- Median stripe on opisthosoma with broadened anterior part

  10  

10
(9)

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Tegular apophysis with process, pointing basally; prosoma length 2.7-3.7 mm; prosoma yellow-brown, whitish in eye region, medially with light serrated band, lateral stripes striking, consisting of ± merging single dots; legs yellowish, indistinctly annulated

Arctosa stigmosa (Thorell, 1875)

female

-

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Tegular apophysis with a process, pointing distally; prosoma length 4.1-5.0 mm; prosoma red-brown with dark spots, brighter median band distinctly serrated, 2 bright spots posterior to posterior lateral eyes, lateral stripes consisting of bright spots; legs yellowish; femur weakly annulated

Arctosa maculata (Hahn, 1822)

female

11
(1)

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Prosoma laterally with 3-4 spots; prosoma length of females 3.4-3.7 mm; prosoma olive brown, median band bright, weakly star-shaped; legs red-brown, coxa and femur yellowish; opisthosoma yellow greenish with scarce black hairs; cardiac mark distinct, white haired, posterior to cardiac mark 4-5 bright triangular spots, lateral 2 yellow spots; epigyne and vulva as fig.

Arctosa lutetiana (Simon, 1876)

male

- Different

  12  

12
(11)

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Cardiac mark on opisthosoma broadened anteriorly; prosoma length 3.8-4.1 mm; prosoma red-brown, with black dots; legs reddish with dark spots on femur; opisthosoma reddish; cardiac mark white-yellowish, bordered with black, posterior to cardiac mark 2-3 dark spots, laterally 2-3 round, black spots from which running fine white lines; epigyne and vulva as figs.

Arctosa alpigena (Doleschall, 1852)

male

- Different

  13  

13
(12)

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Median part of epigyne almost as large as epigynal groove

Arctosa figurata (Simon, 1876)

male

- Median part of epigyne small; between the lateral epigynal parts a large epigynal groove visible

  14  

14
(13)

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Cheliceral furrow margin with 2 teeth on inner side

Arctosa fulvolineata (Lucas, 1846)

male

- Cheliceral furrow margin with 3 teeth on inner side

  15  

15
(14)

Anterior epigynal pockets closely together; median bar indistinct, triangular, haired

  16  

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Anterior epigynal pockets distinctly separated; median bar distinctly visible

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16
(15)

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Epigynal groove wider anteriorly than posteriorly; margins of median bar merging with margin of anterior epigynal pocket. Spines on metatarsus I-II short; spines on tibia I reduced or missing

Arctosa personata (L. Koch, 1872)

male

- Epigynal groove posteriorly at least as wide as anteriorly; margins of median bar distinctly separated from margin of epigynal pocket; spines on metatarsus I-II and tarsus normal

  17  

17
(16)

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Prosoma slender and long; basic colouration brown; prosoma length smaller or equal 4.0 mm; anterior margin of epigynal pocket broad and strongly sclerotised

Arctosa perita (Latreille, 1799)

male

-

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Prosoma plump; basic colouration greenish yellow. Prosoma length > 4.5 mm; anterior margin of epigynal pocket slender

Arctosa cinerea (Fabricius, 1777)

male

18
(15)

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Median part of epigyne reaching epigastric furrow, triangular

Arctosa leopardus (Sundevall, 1833)

male

- Median part of epigyne not reaching epigastric furrow

  19  

19
(18)

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Median part of epigyne posteriorly divergent

Arctosa maculata (Hahn, 1822)

male

-

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Median part of epigyne anteriorly divergent

Arctosa stigmosa (Thorell, 1875)

male

Further taxa

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1. Arctosa alpigena lamperti Dahl, 1908

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2. Arctosa intricaria (C. L. Koch, 1847)

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3. Arctosa lacustris (Simon, 1876)

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4. Arctosa lagodechiensis Mcheidze, 1997

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5. Arctosa letourneuxi (Simon, 1885)

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6. Arctosa ravida Ponomarev, 2007

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7. Arctosa renidescens Buchar & Thaler, 1995

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8. Arctosa similis Schenkel, 1938

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9. Arctosa simoni Guy, 1966

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10. Arctosa tbilisiensis Mcheidze, 1946

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11. Arctosa variana C. L. Koch, 1847

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12. Arctosa villica (Lucas, 1846)

world13. Arctosa excellens (Simon, 1876)
world14. Arctosa perita arenicola (Simon, 1937)