echmepterygis ) to a 56.7-centimetre (22.3 in) long stick insect ( Phobaeticus chani ). The heaviest documented present-day insect was a 70 g (2½  oz ) Giant Weta , though the Goliath beetles Goliathus goliatus , Goliathus regius and Cerambycid beetles such as Titanus giganteus hold the title for some of the largest