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Evarcha infrastriata (Keyserling, 1881) Striped Evarcha

First described as Hasarius infrastriata in 1881, this small spider is widespread in coastal and hinterland eastern Australia, on grasses and shrubs, but not often noticed because of its small size. It is more common in northern areas. The male has an attractively-striped, bright-orange head, about the same length as its small abdomen. A white strip runs lengthways along the centre of the upper surface, hence the name infrastriata which means "line within". The female is larger than the male, mostly because its abdomen is longer. When in alcohol, the white line disappears from the front of the head. . ♀ 4.5mm ♂ 3.5mm

Male, Mareeba 2013 AUS-1337 facing


Evarcha infrastriata
Photo: Iain R. Macaulay

Male, Mareeba 2013 with palps AUS-1337


Evarcha infrastriata
Photo: Iain R. Macaulay and Robert Whyte (palps)

Male with palp and teeth Mossman 2011 AUS-105


Evarcha infrastriata
Photo: Robert Whyte

Male Mossman 2011 AUS-105


Evarcha infrastriata
Photo: Robert Whyte

Male, Mareeba 2013 AUS-1357


Evarcha infrastriata
Photo: Iain R. Macaulay

Male, Grafton 2013 AUS-593


Evarcha infrastriata
Photo: Robert Whyte

Illustrations


Evarcha infrastriata
Illustraions by Koch & Keyserling (Die Arachniden Australiens) and Marek Zabka

 

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