Weird black bug with a furry red square on its back/abdomen has been enlarged A LOT. It is a Lady bug larva!!!!! Really!!!!!
The Asian lady beetle (AKA Asian Lady Bug) larva resembles a small, spiny alligator with a blue-black body and two rows of small, orange to reddish spots on its back. Newly hatched, they are about 1/8 inch long and grow to about 0.5 inches.
When fully grown, the Asian lady beetle larva molts into a pupa then transforms itself into an adult beetle. The pupa is usually attached to a leaf or other substrate near an aphid colony. The pupa is orange with black spots and similar in size and shape to the adult.