Jungle Spider :)

This one I found in the far north of Caledon Forest when I was looking for more trees and lettuces to collect for more crafting.

Just below the sign The Rowanwoods on the map (North of Treemarch Estuary), there's a little pond where there are a load of spiders (and a few Risen to the north) and you'll find the Spider on the south end of the pond next to the water.

Also just found another one above the sign Treemarch Estuary on the map and this one is near a load of Ridgeback Skales and Jungle Spiders but is on higher ground away from the water and Ridgebacks. Both the Ridgebacks and Spiders will attack on site.

http://wiki.guildwars2.com/wiki/Juvenile_Jungle_Spider

Update - 27th May 2017; This is still the same :)