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Glenognatha

Glenognatha is a genus of long-jawed orb-weavers that was first described by Eugène Louis Simon in 1887. It was considerably revised in 2016.

Distribution

Species in this genus are found in North America, Central America, Asia, South America, the Caribbean, Africa, on the French Polynesian Islands, and Saint Helena.

Description

Glenognatha species have a total length of 3-5 mm for both females and males.

The carapace is pear-shaped, dark and shiny, slightly punctuated, and anteriorly truncated. The eye region is elevated with eyes prominent in two rows, the anterior median eyes being the smallest.

In males, the chelicerae are long and robust. The abdomen is round and shiny, usually with dark spots. The legs are long, especially the first two pairs, and spines are absent.

Life style

Glenognatha species were sampled between vegetation under leaves in the forest understory from the ground layer. They construct horizontal, asymmetrical orb-webs with a tight mesh having closely set spirals and numerous radii. They attach small pieces of debris to the web under which they hide when disturbed. The web, stabilimentum and cryptic posture are very similar to those of Uloborus.

Species

, this genus includes 37 species:

In synonymy:

  • G. atlantica <small>(Holm, 1969)</small> = Glenognatha argyrostilba <small>(O. Pickard-Cambridge, 1876)</small>
  • G. centralis <small>Chamberlin, 1925</small> = Glenognatha minuta <small>Banks, 1898</small>
  • G. hawigtenera <small>(Barrion & , 1995)</small> = Glenognatha dentata <small>(Zhu & Wen, 1978)</small>
  • G. maelfaiti <small>Baert, 1987</small> = Glenognatha argyrostilba <small>(O. Pickard-Cambridge, 1876)</small>
  • G. mira <small>Bryant, 1945</small> = Glenognatha argyrostilba <small>(O. Pickard-Cambridge, 1876)</small>
  • G. montana <small>(Simon, 1897)</small> = Glenognatha argyrostilba <small>(O. Pickard-Cambridge, 1876)</small>

References