Spring is Slowly creeping in and now that the Sun sits higher during the day the Lady Bugs start appearing.. We are a Direct Southerly Exposure so on those Bright Sunny days the Lady Bugs come out of Hiding in greater numbers.. We had a couple Plants that are brought inside during the Winter Months , they were soon put back outside thinking they were the source... Nope , seems like those Lady Bugs just crawl out of the woodwork all over the Windows.. Once it's T Shirt weather they just swarm all over the Front Door...

Any ideas where those Lady Bugs are coming from and a Not so messy way to get rid of them, they Bit and they Stink when you swat at them... lol... Thoughts appreciated, Cheers Thanks

Shop Vac. Then seal all the places they can come in. My neighbor had the same issue, all over the South facing windows, 2 stories high!! until we caulked every possible crack. This year I think he said he had 4.

It's entirely possible that you're exactly correct in that they "just crawl out of the woodwork all over the Windows." By that I mean that last autumn eggs were laid in cracks between the window frame and the wall. The nymphs hatch and scatter in all directions, including inside.

Your best solution will be caulking the window frames, starting on the inside to let the rest of them escape to the outside. Pay particular attention to the underside of the frame under the window. Seal the outside in August after they've all left.

We used to buy them in bags to release into the garden. I live in southeast Ontario on the lake. I would be so pleased to see them again. I don't remember them biting and were always very friendly

Unfortunately our US gov't never learns - do not import ANYTHING!
https://entomology.ca.uky.edu/ef416

Yes, both beetles are capable of biting, but the Asian one is more likely to.
One female can lay 3800 eggs in a season.
This beetle has taken over the native one, sadly.

• Asian Lady Beetle: Has a very distinctive white “W” shape on its pronotum, the area immediately behind the head.
• American Ladybug: Has a shiny black pronotum with two tiny white circles.
• Asian Lady Beetle: Their dome is usually orange, tan or yellowish with black spots.
• American Ladybug: Domes are a rich, scarlet red with black spots.