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Maratus nigromaculatus

Fact Box
Maratus nigromaculatus
(Note: This identification is based on similarities with photos displayed by Heiko Metzner)
Body length:
female: approx 5-7 mm
male: 5-6 mm
This species lives on green shrubs; the male of this species is found more often than the female, probably because the latter is a drab brown colour (see notes below)
Not considered a serious hazard
Maratus nigromaculatus
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Another view

Like many of the Australian Maratus species the female of this species is a grey-brown colour with none of the bright blue markings the male has. The abdomen has on its dorsal abdomen a heart-shaped mark that is slightly darker than the rest of the spider and this mark is fringed in black.

The males of this species share with other Maratus males the unusual characteristic of cuticular flaps attached to the upper sides of the abdomen, these spreading sideways like a fan when the male is courting the female. This fan display is thought to be induced hydraulically and the spider also tends to extend each Leg III upwards and to the rear as part of its courtship behaviour.

Spider(s) with a very similar appearance: Maratus volans, Maratus pavonis and many other Australian Maratus species.

Email Ron Atkinson for more information.    Last updated 5 November 2015.