Linyphiidae: Metopobactrus Simon, 1884

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Males

  2  

- Females (in most cases females can only be reliably identified considering males caught in the same place)

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2
(1)

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Head region only conically elevated; tibial apophysis with row of bristles; male prosoma as fig.

Metopobactrus prominulus (O. P.-Cambridge, 1873)

female

- Head region with cephalic lobe or frontal processes

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3
(2)

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Eye field in males with slantingly projecting frontal process; tibia of male pedipalp with bluntly rounded apophysis

Metopobactrus nodicornis Schenkel, 1927

female

- Different

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4
(3)

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Distal margin of pedipalp tibia with a long not very protruding tooth-lamella; prosoma as fig.

Metopobactrus ascitus (Kulczyński, 1894)

female

- Distal margin with protruding tooth-lamella

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5
(4)

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Tibial apophysis of male pedipalp plump

Metopobactrus prominulus (O. P.-Cambridge, 1873)

female

male

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Tibial apophysis of male pedipalp slender, with hook-shaped apophysis; prosoma with variable dorsal humps

Metopobactrus nadigi Thaler, 1976

female

6
(1)
Epigyne - vulva: entrance ducts initially running parallel

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- Entrance ducts diverging

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7
(6)

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Vulva as fig.

Metopobactrus ascitus (Kulczyński, 1894)

male

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Epigyne and vulva as fig.

Metopobactrus nadigi Thaler, 1976

male

8
(6)

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Eye field uniformly convex; epigyne and vulva as fig.; females can only be reliably identified considering males caught in the same place

Metopobactrus prominulus (O. P.-Cambridge, 1873)

female

male

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Distinguishable from prominulus only by males caught in the same place

Metopobactrus prominulus (O. P.-Cambridge, 1873)

male

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Eye field bulged at an obtuse angle; epigyne very similar to prominulus

Metopobactrus nodicornis Schenkel, 1927

male

Further taxa

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1. Metopobactrus deserticola Loksa, 1981

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2. Metopobactrus falcifrons Simon, 1884

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3. Metopobactrus orbelicus Deltshev, 1985

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4. Metopobactrus verticalis (Simon, 1881)