This is an adult Phidippus ardens female.
 She is 12-15 mm 
Ans feeding very well on green and blue bottle flies.
Ardens are a chunky species, and are easy to care for, but prefer to be kept slightly dryer than Phidippus regius. 
They are a very social and friendly species.
And by far one of the most chilled and laid back of Jumping spiders, and they love to explore.
 
Please remember to provide a bright white light directly above the enclosure for their wellbeing.