Can I keep a ladybug as a temporary pet? A. Keeping a ladybug as a pet to observe will be fun. You can house your ladybug in a bug box or terrarium. Keep the foliage moist, or place a damp paper towel inside so the ladybug can get a drink. You can feed your ladybug moistened raisins or other sweet, non-acidic fruits. This will help maintain their fat reserves until you are ready to release the ladybug in spring.