I think we all know what wasps look like and what they do! They are a huge nuisance during warm summers, especially when you're enjoying the garden, eating and drinking. Many people are severally allergic to wasp stings.
Woodlice are brown in colour and often curl up into a ball when disturbed. Woodlice are harmless to humans, animals and plants. Large number may appear in your house gaining entry though cracks, doors and windows. They prefer damp conditions.