Which animal order has the most species?
Lepidoptera (moths and butterflies)
Almost 25% of all known types of animal life-forms are beetles. About 40% of all described insect species are beetles (about 400,000 species), and new species are discovered frequently. It is widely accepted that the total number of all beetles species (including the undescribed ones) is higher than one million.
reach: rather globalanimalsbeetlesinsectsnaturezoology