Locality: NEW ZEALAND AK, suburb of Saint Johns, University of Auckland Tamaki Campus.
Habitat: On cultivated brassicas in planter box (vege garden).
I collected what I thought were two defunct mummified aphids from this observation date and location: https://www.inaturalist.org/observations/8999408
I had them in a petri dish on my dinner table with the intent of photographing them with my DSLR, but haven't had the time in the past week. I've looked at the petri dish at least every other day. Tonight I saw that the there were 4 small dark objects in the petri dish and not 2!!! Wasps had emerged from the aphids!
Following up on earlier intuition I tried seeing if bright white light or UV light attracted the wasps and the UV light definitely caused attraction.
photographed on a ruler
Head to abdomen terminus 2.5 mm
Antenna to last leg 4mm
two noticeable dark spots on wings
This specimen is tiny (less than a millimeter) and came out of a very small leaf tie. It is likely a parasitoid of a fly, but may be hyperparasitoid of another wasp.
This was wandering on Agapanthus leaves in the garden. It did the typical Chalcid wasp sweep and feeling with its antennae. I think it caught a very tiny critter (that I couldn't identify but could just see eye spots). Unfortunately this shot was shadowed, but it showed the best features of the wasp for possible identification.
These really are tiny. You can see the stomates on the Agapanthus leaves.