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Desognaphosa species?

Fact Box
Species:
Desognaphosa species?
(This proposed identification is derived from a paper by Norman Platnick but there are some significant reasons for doubting this ID: see notes below)
Family:
Trochanteriidae
Body length:
female: 5 mm
male: 6 mm
Habitat:
This genus is widely distributed, usually being found wandering on open ground or in leaf litter
Toxicity:
Uncertain; probably harmless
Desognaphosa species?
Click to enlarge
Another view
Click to enlarge
Female from front
Click to enlarge
Female from side

The spider in the above photos looks very similar to one identified by Dr. Robert Raven (Queensland Museum) as Desognaphosa yabbra. Almost all of the described Desognaphosa species were found in North Queensland, the notable exception being D. yabbra, the range of which is known to extend into Northern NSW. However, the specimen in the photos above differs from D. yabbra in several respects: it was found inland from Sydney, it has a pattern of pale marks on its dorsal abdomen which does not match those in the photo examined by Dr. Raven, and (most importantly) it does not appear to have porrect (forward-pointing) chelicerae which Norman Platnick says is a characteristic of Desognaphosa species. However, it does not seem to belong in any other Australian spider family and it is possible that it is actually an undescribed Desognaphosa species and that chelicerae are simply bent downwards for some unknown reason, perhaps including immaturity.

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 7 July 2017.