Family Pholcidae C. L. Koch, 1850
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1

Six eyes (anterior median eyes absent)

  2  
-

Eight eyes

  4  
2
(1)

Prosoma with median furrow, eye triads on median turret, very high in males

Modisimus
speciesimage

male Prosoma, frontal view
(Tong & Li 2009)
-

Prosoma without median furrow; eye triads on very low humps

 

  3  
3
(2)

Male paracymbium (procursus) with ventral flap; posterior epigynal plate without pockets

Spermophora
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male Pedipalp
(Miller & Zitnanska 1976)

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male Pedipalp
(Dresco & Hubert 1969)

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male Pedipalp
(Dresco & Hubert 1969)
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female Epigyne
(Dresco & Hubert 1969)

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Prosoma, dorsal view
(Miller & Zitnanska 1976)

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Habitus, lateral view
(Heimer & Nentwig 1991)
-

Male paracymbium (procursus) without ventral flap; posterior epigynal plate with pair of pockets

Spermophorides
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male Pedipalp, retrolateral view
(Senglet 1973b)

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male Paracymbium, anterior view
(Senglet 1973b)

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male Paracymbium, retrolateral view
(Senglet 1973b)
speciesimage

female Epigyne, ventral view
(Senglet 1973b)

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female Epigyne, ventral view
(Senglet 1973b)

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female Vulva, dorsal view
(Senglet 1973b)
4
(1)

Prosoma evenly domed, without median furrow or pit

  5  
-

Prosoma with median furrow or pit

  7  
5
(4)

Large species (body length >4 mm) with cylindrical opisthosoma

Pholcus
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Prosoma, dorsal view
(Heimer & Nentwig 1991)

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Prosoma, dorsal view
(Heimer & Nentwig 1991)
-

Small species (body length ≤3 mm) with short opisthosoma (about at high as long)

  6  
6
(5)

Paracymbium (procursus) with long dorsal process, female genitalia without external pockets, with internal semi-circular or bullet-shaped median structure visible through cuticle

Micropholcus
speciesimage

male Pedipalp, retrolateral view
(Huber 2011)

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male Pedipalp, prolateral view
(Huber 2011)

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male Bulbal apophysis
(Huber 2011)
speciesimage

female Epigyne
(Huber 2011)

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female Vulva, dorsal view
(Huber 2011)
-

Paracymbium (procursus) without dorsal process, female genitalia with pair of external pockets, without internal median structure visible through cuticle (Quamtana)
7
(4)

Small species (body length 3 mm), prosoma with median furrow

Psilochorus
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male Pedipalp
(Roberts 1995)

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female Epigyne
(Roberts 1995)

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Habitus, lateral view
(Heimer & Nentwig 1991)
-

Larger (body length 5-10 mm), prosoma with median pit

  8  
8
(7)

Opisthosoma higher than long

Artema
-

Opisthosoma longer than high

  9  
9
(8)

Legs with many small black spots/lines

  10  
-

Legs without small black spots/lines

  11  
10
(9)

Opisthosoma pointed dorso-posteriorly, male chelicerae with two pairs of frontal apophyses

Crossopriza
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female Opisthosoma, lateral view
(Song et al. 1999)

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Chelicera
(Song et al. 1999)
-

Opisthosoma rounded dorso-posteriorly, male chelicerae with single pair of frontal apophyses

Holocnemus
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male Chelicerae, frontal view
(Huber 1995)

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Opisthosoma, dorsal view
(Jäger 2000a)

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Habitus, ventral view
(Jäger 2000a)
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Habitus, dorsal view
(Kovács et al. 2006)
11
(9)

Male chelicerae frontally with many modified (club-shaped) hairs

Stygopholcus
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male Chelicerae
(Senglet 1971)

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male Chelicerae, lateral view
(Senglet 1971)
-

Male chelicerae frontally with apophyses provided with 1-3 modified hairs each

  12  
12
(11)

Male femora 1 with ventral spines, epigynum roughly triangular

Hoplopholcus
-

Male femora 1 without spines, epigynum roughly rectangular

Smeringopus
This key is a kind contribution of Bernhard Huber, following Huber et al. (2017).

Further genera