This is only a small one about 2.5 to 3 cm. I noticed its movements were a bit clumsy and it was falling over. The reason became clear when I looked at the images. It only has one hind leg.
I didn't like any of iNat's choices for this bug and its children which were shaken from saltbush on the beachfront
the nest is from a Delta bicinctum, and all the other chambers hatched successfully except for this one. This morning I noticed the head of this insect coming out of the failed chamber. Could it be that one of the grubs that was put into the chamber was already parasitised by a different species?
European wasp?
Another small bush. Bluish grey with globular flower arrangement.
This is an observation of a pair of Thynnids in copulo. The male is clear in these shots so this observation has been marked as a male.
I have separately posted an observation highlighting the female in these shots, as suggested by @Ellurasanctuary below. (https://inaturalist.ala.org.au/observations/164144446).
Note however, that female Thynnids sometimes mate with males of another species in order to scam a feed of nectar!
https://www.taxonomyaustralia.org.au/post/thynnids-are-seriously-sexy-wasps
The fluffy one seems to be a chick, belonging to the elder.