Invertebrate Discoveries

A new species of jumping spider discovered on a RAP survey in the Southern Highlands of Papua New Guinea. © Wayne Maddison
© Wayne Maddison
 

Cucudeta zabkai jumping spider  

This small jumping spider that vaguely resembles an ant was found among leaves on the ground of the dense rainforest at Tualapa.  It’s not only a species new to science, but Cucudeta is a genus new to science.  It belongs to the subfamily Cocalodinae, a highly distinctive group unique to New Guinea and region that previously had only two known genera.  Nothing is known about its ecology except for the habitat (leaf litter).

In general, jumping spiders can jump at least 15 cm (6 in). They don't have big legs for jumping because they use blood pressure to jump – muscles in the body contract to squeeze the blood into the legs, which makes the legs snap straight, and thus the jump.  There are about 5000 described species of jumping spiders, and probably at least as many species again remain to be discovered around the world.

Scientific name

Cucudeta zabkai

Where

On a RAP survey in the Southern Highlands Province of Papua New Guinea.

When

July 2008

Finder

Wayne Maddison (Beaty Biodiversity Museum, University of British Columbia)

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