Parapolybla nodosa:

Hornet (Vespa bicolor):

These hornets will generally not attack unless they are defending their nests.

Lesser Banded Hornet (Vespa affinis):

Common Paper Wasp (Polistes olivaceus):

Potter Wasp (Delta campaniforme):

Potter Wasp (Delta petiolata):

These wasps are quite large (up to 3cm long) with distinct markings. Surprisingly, this wasp is totally harmless (with only a mild sting). It is unlikely to attack, even around it's nest.

Mud Dauber Wasp (Ammophila atripes):

Mud Dauber Wasps are long and thin. They get their name from the nests that they build which are made from mud. These wasps are rarely aggressive (even around their nests) and they are not dangerous, however they will sting if they are handled. They prey on spiders, the main food for their offspring.