Asian lady beetle

Adults leave their shelter in the spring to mate. The eggs are laid on the underside of leaves, often near an aphid colony, for the larvae to feed on. Females produce hundreds of eggs, which hatch three to five days later. Larvae resemble tiny alligators, first light grey then black with yellow, orange or red spots and are covered with spines and tubercles. Larvae moult three times in two weeks. The mature larvae attach themselves to the undersides of leaves and transform into the pupal stage. The last moult takes place one week later, when the adult beetle emerges. Asian lady beetles congregate in October and look for a place to spend the winter.

They produce probably two generations a year in Quebec, maybe three if the summer is long and hot.