There are 2 tameable creatures with this look.
Exotic Family : You must be specced as a Beast Master of at least level 65 to tame and use Water Striders!
|The Singing Pools, The Wandering Isle|
|In practice this beast is almost impossible to tame: taming exotics requires level 65, and this creature can longer be accessed once your Pandaren leaves the starting zone, so you'd have to level to 65 on the Wandering Isle! Formerly it was much easier to tame, as exotics could be tamed at level 10.|