I found myself making an assumption today, along these lines:
You only find large insects in tropical climates.
I was, initially, thinking of tarantulas and other large spiders (I know, not actually insects), but also The Giant Dragonfly, Atlas Moth, Titan Beetle etc.
Here in England, the largest I've come across is a daddy long-legs. They are rarely larger than, say, 3cm from toe to toe.
I don't know of any super-sized mini beasts in colder climates.
So there's really two questions here:
- Are there huge insects (or arachnids) naturally found in temperate to cold climates?
- If this assumption is true, why is this?