They were super hard for me to find, too! Turns out they like clearings, and have become more common (although they're not truly common) since I cleared out most of the flowers and trees in the main part of town. They've even turned up in the plaza!
I will say, do not, under any circumstance, have your net out all willy nilly!
I guess if you're doing anything other than tiptoeing with the net out, it ticks them of and they'll "bite/sting" you. You black out, and wake up infront of your house.
I was minding my own business last night, and it wasn't even in view, but a tarantula literally came up out of nowhere from the bottom of the screen, angrily running up to me, and despite running, it got me. It was a very startling experience >_>"
- - - Post Merge - - -
I know it's silly to be scared of them but when they rush at you and sting you it really makes you jump out of your skin.
YES EXACTLY THIS.
God, I jump just seeing them cause they're suddenly there, but it's doubly bad when they have no warning and get you @_@