Assamiidae

Assamiidae
Bandona boninensis
Systematics
Sub-stem : Jawbearers (Chelicerata) Class : Arachnids (arachnida) Order : Harvestmen (Opiliones) Subordination : Laniatores Superfamily : Assamioidea Family : Assamiidae
Scientific name of the  superfamily
Assamioidea
Thorell , 1876
Scientific name of the  family
Assamiidae
Sørensen , 1884

Assamiidae are a family of arachnids (Arachnida) in the order of the harvestmen (Opiliones). They are named after Assam , where the first species, Assamia westermanni, of the family were described. With more than 400 species, they are the largest group of the Laniatores .

With a body size of 2 to 8 mm, they are small to very large, mostly yellow to red-brown harvestmen with black markings on the back. Some also have white markings. Your legs are always long.

As usual for harvesters, most of the species in the family are ground-dwelling (litter layer). Some types of the family are blind. These live in the ground or in caves.

The family is common in the tropics of the old world. It is absent in Madagascar, Europe, America and Southeast Asia. The Assamidae have great biodiversity in Central Africa , India , Australia and New Guinea .

Systematics

The more than 250 genera with 400 described species, although this strong subdivision is also uncertain here. The division into the subfamilies established by Roewer is monophyletic and therefore cannot be maintained. There are at least five major groups, the definition of which contradicts Roewer's subdivision.

Dampetrinae are endemic to Australia and New Guinea . Assamiinae are mostly found in India and Nepal. Trionyxellinae , which are represented in India and Sri Lanka , have a medium tarsal claw (Pseudonychium). Erecinae live in central Africa. The small, blind Irumuinae settle in caves and in the ground.

Assamidae are probably a sister group of the Gonyleptoidea .

• Arachnids (arachnida)
  • Harvestmen (Opiliones)
    • Subordination Laniatores Thorell, 1876
      • Group ( infrastructure ) Grassatores
        • Superfamily Assamioidea Sørensen
          • Family Assamiidae Sørensen, 1884
            • Subfamily Aburistinae Roewer, 1935
            • Subfamily Acacinae Roewer, 1935
            • Subfamily Assamiinae Sørensen, 1884 - mostly in India and Nepal
            • Subfamily Dampetrinae Sørensen, 1886 - only in Australia and New Guinea
            • Erecinae Roewer subfamily , 1935 - Central Africa
            • Subfamily Eupodaucheniinae Roewer, 1935
            • Subfamily Irumuinae Kauri , 1985 - small, blind, bottom-dwelling species
            • Subfamily Maruinae Roewer, 1935
            • Subfamily Mysoreinae Roewer, 1935
            • Subfamily Opcochininae Roewer, 1935
            • Subfamily Polycoryphinae Roewer, 1935
            • Subfamily Pungoicinae Roewer, 1935
            • Subfamily Selencinae Roewer, 1935
            • Sidaminae Roewer subfamily , 1935 - East Africa
            • Subfamily Trionyxellinae Roewer, 1912 - India and Sri Lanka.

swell

• Ricardo Pinto-Da-Rocha, Glauco Machado, Gonzalo Giribet (eds.): Harvestmen. The biology of Opiliones. Harvard University Press, Cambridge MA et al. 2007, ISBN 978-0-674-02343-7 .

1. ↑ Adriano B. Kury: assamiidae Sørensen 1884 . In: Pinto-da-Rocha. 2007, p. 173ff.