Earwigs (Order Dermaptera). Earwigs are small, long insects that are most easily identified by their abdominal pincers and short wings that cover a small portion of their body.
Some damage can be caused by earwigs. Their damage is very comparable to caterpillars, so make sure you confirm the culprit. Earwigs are also predacious and eat small, soft bodied insects that you do not want around, so it is up to you to decide how much damage you are willing to tolerate.
They can be active year round!
Worldwide in temperate and tropical locations.
They are attracted to warm and moist environments. They are nocturnal so they prefer places with lots of nooks they can hide in during the day.
I would not recommend any action taken to attract earwigs in your garden. It is nice to have a few around, but they can damage your plants if their populations explode. If you do find yourself in an infestation, the best thing I can recommend is to make your garden less attractive to them. Make sure your garden is free from weeds, leaves, and low growth vines which create retreats for the insects. You can also make traps from rolled paper or bamboo which creates nice hiding spots for them. You can then dispose of them at your discretion, though I would recommend just relocating them to a nearby park.
Earwigs are just one of those bugs that are not a concern unless their numbers get out of control. If you are not seeing a lot of damage on your plants but have a large population, remember they will eat the bad bugs but can eat the good ones too!