Family Gnaphosidae
(ground spiders)

1a

Tarsi of legs III & IV with ventral comb comprising setae of uniform length apically

2

1b

 Leg tarsi III & IV without comb

4

 

 

 

 

 

2a

Posterior median eyes separated almost by their diameter

genus Zelotes

3

2b

Posterior median eyes almost touch each other

 

 

3a

Chelicerae usually with 4 promarginal teeth and 3 retromarginal teeth

genus Drassyllus

 

3b

Chelicerae usually with 3-4 promarginal teeth and 1-2 retromarginal teeth

genus Urozelotes

 

4a

Posterior margin of chelicerae with lobe or keel

5

4b

Posterior margin of chelicerae with several small teeth or unarmed

6

 

5a

Cheliceral keel sclerotized, dentical

genus Gnaphosa

 

5b

Cheliceral lobe translucent

genus Callilepis

 

6a

Leg trochanters with a deep ventral notch apically

genus Drassodes

 

6b

Leg trochanters with a shallow notch or without notch

7

7a

Abdomen dorsally dark, with distinct white pattern

genus Sergiolus

 

<= Click to see photo

7b

Abdomen dorsally without such pattern

8

 

8a

Anterior margin of chelicerae with two closely spaced teeth

genus Litopyllus

 

8b

 Anterior margin of chelicerae with 2-4 separated teeth

9

 

9a 

Posterior margin of chelicerae with 1 tooth

genus Herpyllus

 

9b

Posterior margin of chelicerae with 2 teeth

genus Haplodrassus

 

 

 

Genus Callilepis

Callilepis pluto Banks, 1896

Genus Drassodes

Drassodes auriculoides Barrows, 1919
Drassodes
neglectus (Keyserling, 1887)

Genus Drassyllus

Drassyllus fallens Chamberlin, 1922
Drassyllus
niger (Banks, 1896)

Genus Gnaphosa

Gnaphosa fontinalis Keyserling, 1887
Gnaphosa
muscorum (L.Koch, 1866)
Gnaphosa
parvula Banks, 1896

Genus Haplodrassus

Haplodrassus bicornis (Emerton, 1909)
Haplodrassus
hiemalis (Emerton, 1909)
Haplodrassus signifer (C. L. Koch, 1839)

Genus Herpyllus

Herpyllus ecclesiasticus Hentz, 1832
Herpyllus
propinquus (Keyserling, 1887)

Genus Litopyllus

Litopyllus temporarius Chamberlin, 1922

Genus Sergiolus

Sergiolus capulatus (Walckenaer, 1837)
Sergiolus
ocellatus (Walckenaer, 1837)

Genus Urozelotes

Urozelotes rusticus (L.Koch, 1872)

Genus Zelotes

Zelotes duplex Chamberlin, 1922
Zelotes fratris Chamberlin, 1920
Zelotes hentzi Barrows, 1945


© American Museum of Natural History,  June 01, 2002
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