These wasps will be about over spring and summer when their hosts are prevalent. Females lay their eggs in autumn when the larvae they prey on have hatched.
There are no comparative references between these wasps so I’ll mention them all.
Gotra Sp1 (Black and white striped Ichneumon wasp) is an Australian wasp it is found mainly on the south-east coast in temperate to subtropical regions.
Xanthocryptus novozealandicus (Lemon tree borer parasite) is native to New Zealand but also found in Australia and New Guinea. In Australia it along the east coast from south Queensland to Tasmania.
Ichneumon promissorius (Banded caterpillar parasite wasp) is an Australian native found mainly in eastern Australia, Tasmania, South Australia and also to a lesser degree in Western Australia.