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Neon australis Richardson, 2013 Australian Neon

A tiny spider, the male only 2.5mm total body length, common in leaf-litter from South Australia to South East Queensland, cryptically coloured against the litter and almost impossible to spot with the naked eye. Neon is a world wide genus presenting a puzzle for biogeography as it is clearly not introduced, being found in remote wilderness. With a broad head and posterior lateral eyes very wide on the sides of the head and shaggy fringed legs 1 and 2, it resembles Harmochirus , but the absolute clincher is the classic Neon palp with a long thin embolus In three separate circling spirals, two on the side and one on the top. Under the microscope the face shows reflective guanine crystals through the reddish brown integument. ♀ 3mm ♂ 2.6mm

Male AUS-1508 Laguna NSW


Neon australis Richardson, 2013
Photo: Robert Whyte

Male AUS-1508 Laguna NSW


Neon australis Richardson, 2013
Photo: Robert Whyte

Male AUS-1508 Laguna NSW


Neon australis Richardson, 2013
Photo: Robert Whyte

Male AUS-1508 Laguna NSW


Neon australis Richardson, 2013
Photo: Iain R. Macaulay

Male AUS-1508 Laguna NSW


Neon australis Richardson, 2013
Photo: Iain R. Macaulay

Male AUS-1508 Laguna NSW face in alcohol showing guanine crystals


Neon australis Richardson, 2013
Photo: Robert Whyte

Male AUS-1508 Laguna NSW, classic Neon palp


Neon australis Richardson, 2013
Photo: Robert Whyte

References


Neon australis Richardson, 2013

 
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