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webs and egg sacs
Trachycosmus sculptilis |
(This identification is derived from papers by Norman Platnick
and subsequently by Azevedo et al and confirmed by Dr Robert Raven; see notes below)
female: 5.5 mm|
male: 5.0 mm
This species is widely distributed, spider usually found wandering on open ground or in leaf litter
Uncertain; may be aggressive when defending its egg sac
The transfer of this species from the Trochanteriidae into the Family Trachycosmidae is as stated in the following paper, published in January 2022:
Azevedo GHF, Bougie T, Carboni M, Hedin M and Ramirez MJ "Combining genomic, phenotypic and Sanger sequencing data to elucidate the phylogeny of the
two-clawed spiders (Dionycha)" Molecular Phylogeny and Evolution 166 1-14.
Although this species belongs to the same family as the flattened Morebilus and Rebilus species it has a much taller profile than they do. The markings
on the upper surfaces of its abdomen and the shape of the fovea on its carapace are distinctive features.
Known Range: Not often noticed but recorded as being down the east coast of Australia from Cairns to Tasmania and also in the South-west corner of WA.
Spider(s) with a very similar appearance: Many other dark coloured spiders with an 'average' spider shape.
Email Ron Atkinson for more information.
Last updated 24 March 2022.