How often do spiders eat?

Question

I captured a spider and was wondering how often it should be fed or how often they usually eat in the wild.

Answer 1

In the wild, whenever they can and they are not already full.  In captivity I would feed them once a week.

Any idea what kind of spider it is?  Once I know that I can tell you more about keeping it and feeding it.

Additional details:

   That fly should do him good for a week or two, but can probably go longer without food.  You can tell if it is starved if the abdomen is small.  Also, the spider will need water, I suggest getting an eye dropper and putting a small drop (smaller than the spider) in the edge of the jar.  I would also suggest getting pinhead crickets from petco or petsmart.  2-3 should do fine once a week.  

By the way, the species looks like a kind of ground spider of the family Gnaphosidae, possibly genus Gnaphosa.  You can tell by the spinnerets.

http://bugguide.net/node/view/189497

Answer 2

whenever they get stuff in their web usually the roll the stuff up and eat before they sleep

Answer 3

Some species eat most every day but other like tarantulas can go months between meals.  Most common spiders would do fine with a bug a few days after they finish eating the one they have.