Native plants for a Cape Cod garden

This March we experienced some very odd weather. I had ants in my kitchen doing the exploratory investigations (showing up for a day or two then disappearing) that they did in late April last year; I saw a lone wasp in the area of last year’s wasp hangout (near my house) and lots of large bumblebees (mostly encountered these outside Boston). I am wondering if these insects  – or at least this generation – will make it through a cold snap if we get one. There isn’t alot out there about what climate change, or climate abberations, do to insect populations. Some articles mention they may breed more because they have a longer season, and that southern insects may move north; all mention the obvious  – that insects are definitely out earlier this year in New England. I have read that changing seasons could cause problems for the bee population – for example when the flowers bloom too early and the bees miss them, or perhaps the bees can be out too early and starve. I don’t know enough about all of these things, I can only report on what I see. We’re back to normal March weather now, so I think the insects are back where insects spend their winters for the time being.