English Beetle Cited by user 173.73.215.46 on 22 Apr 2016 Beetles are a group of insects that form the order Coleoptera, in the superorder Endopterygota.
English Evolution of insects Cited by user RDBrown on 04 Mar 2013 The evolution of insects dates back to the Devonian period, with the oldest definitive insect fossil being the Rhyniognatha hirsti, estimated at .