Is the harlequin the same bug that clusters in corners of rooms and bite? From what I recall, they also stink.Yes, that is correct ;^)
That's the Harlequin Beetle. Different critter, altogether: ~
Harmonia axyridis: Harlequin ladybird (Ladybug.... Brit's Ladybird is so annoying to me..) It is commonly known as the Harlequin ladybird (because it occurs in numerous colour forms). (I know that you specified the Harlequin Beetle, but, same Wiki talking about the Harlequin Ladybug: ) ~ Worldwide propagation Many people now view this species as a nuisance,[5] partly due to their tendency to overwinter indoors and the unpleasant odor and stain left by their bodily fluid when frightened or squashed, as well as their tendency to bite humans.[5]
I used to buy cartons of them in, FedEx Overnight, from Texas, for the greenhouses and never had a smell or bite.
Then, I switched to praying mantids, which became like pets to me. We’d cultivate their breeding in our nursery stock growing fields, harvest the chrysalis (cocoons), and let ‘em hatch out in the GHs, every spring.
Thank you!
They do stink and bite!