Jumping Spider

G. sp.

jumping spider, Salticidae, Kerio Valley, Kenya. Photo © by Michael Plagens

Diurnally active in the Kerio Valley, Kenya. Dec. 2015. Length about 7 mm.

Jumping Spiders, Salticidae, have abandoned the use of silken snares to capture prey, but, nonetheless, make multiples uses of this fibrous protein. Firstly they build a silken tent, often within a leaf, in which to hide through the night. If they get dislodged from a plant they almost always have a safety line of silk to let out in order to catch their fall and allow them to return to their former position.

Salticids hide at night because they are creatures of day, when they can make maximum use of their advanced visual system. Once they spot a suitable prey insect they stealthily advance and then leap upon it with great precision from a considerable distance. The spider at right is a male and was probably out looking for a mating opportunity. It has special markings on its boxing glove palps designed to signal a female that he is not to be considered a prey item.

Salticidae -- Jumping Spider Family

More Information:

Kenya Natural History

Copyright Michael J. Plagens. Page created 3 February 2016