Wolf Spiders - Hero Side
I got mine in Warburg near the Villian Base, loads of Wolf Spiders standing around in formation. Want even easier go to Faultline there are Wolf Spiders all over.
Jets L50 eLx3 Blaster (1300 Badges) @Jets or @Jets Too
L50 Stalker, 4-Tankers, 3-Scrappers, 2-Dominators, 2-Arachnos, 3-Brutes, Blaster, 4-Controllers, Defender

Yup is the safest place to get 'em. As you face the dam, go over to the wall on your right, past the construction with the explore badge on it. Lots of 'em there.
*wraps Jets in bacon*

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Biggest Troll on the forums? I'll give you a hint:

Where do I find Wolf Spiders for the "Defeat 200 Arachnos Minions?" I've done mostly Arachnos Radio Mishes have some toward the badge but don't seem to be getting any more. My toon is a lvl 39 now. Is there any particular place to hunt them or a particular contact that would give me the missions that have them?