Kakadu supports more than 10,000 species of insect including grasshoppers , beetles , flies , termites , butterflies and moths , bees , wasps , ants , dragonflies and damselflies , caddis flies , non-biting midges and mayflies . Despite the fact that Kakadu supports more than 10,000 species of insect , these creatures are often overlooked by visitors . Among the insect groups are grasshoppers , beetles , flies , termites , butterflies and moths , bees , wasps , ants , dragonflies and damselflies , caddis flies , non-biting midges and mayflies .