arr-jim-lad:

If not ladybugs, what are they?

harlequin ladybugs.

it’s one of the world’s most invasive insects, they stink and bite and breed like crazy, and they actually endanger real ladybugs.

I understand why people don’t know, though. I’ve been interested in bugs since I was a kid and I only learned that these guys aren’t “real” ladybugs a few years ago. At the very least, it seems they do actually eat aphids, which is why they were spread globally in the first place (unlike some other intentionally introduced species that fail at their intended purpose). Why people didn’t just use local species that do the same thing, I have no idea. Species becoming invasive after introduction for human use seems to be a recurring theme throughout history, unfortunately. Cane toads are another bad example.