Family Oonopidae

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1

Two eyes

Diblemma

-

Six eyes

  2  

2
(1)
Opisthosoma dorsally and ventrally without scutum

  3  

-

Opisthosoma dorsally and ventrally with scutum, sometimes also divided

  8  

speciesimage
female Opisthosoma, lateral view
(Bristowe 1948)
3
(2)

Femora IV noticeably broadened; ocular area as fig.

Orchestina

speciesimage
Eyes, dorsal view
(Pekar & Gajdos 2001)
-

Femora IV not suspiciously enlarged

  4  

4
(3)

Leg I with ventral spines

  5  

-

Leg I without ventral spines

  6  

5
(4)
Tibia of leg I with 4-5 ventral spines; prosoma reddish

Oonops

speciesimage
Leg I
(Roberts 1995)
-

Leg I with 6 pairs of ventral spines

Spinestis

6
(4)

Tibia and metatarsus I and II with long hairs

Oonopinus

-

Different

  7  

7
(6)

Prosoma roundish, body length 1.8 – 2.4 mm

Tapinesthis

-

Prosoma longitudinal, body length 1.0 – 1.3 mm

Cortestina

8
(2)

Scutum covers dorsal and ventral part of the opisthosoma completely

Silhouettella

speciesimage
Opisthosoma, lateral view
(Heimer & Nentwig 1991)
- Different

  9  

9
(8)
Dorsal scutum is much larger than ventral scutum

Triaeris

speciesimage
Opisthosoma, lateral view
(Bristowe 1948)
-

Dorsal scutum more or less as large as ventral

  10  

10
(9)

Legs I and II with strong ventral spines

Ischnothyreus

speciesimage
female Opisthosoma, lateral view
(Bristowe 1948)
-

Legs without spines

Opopaea

Further genera

1Brignolia
2Heteroonops