Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Order: Hymenoptera
Family: Ichneumonidae
Genus: Netelia
Scientific name: Netelia ephippiata
Synonym:  Paniscus ephippiatus, Netelia smithii, Netelia ephippiata 
Common name: Orange Ichneumonid wasp, Red jacket wasp, Red soldier wasp

Orange Ichneumonid wasp found here also in Australia and Java. It is a wasp with a body length of 20 mm and it does sting. It is widespread throughout New Zealand. They do not live in colonies.They are parasitic wasps which lay their eggs in the larvae of the Noctuid moth.. (Armyworm Caterpillars)

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Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0