Polistes humilis or common paper wasps are generally slender with long thin wings. Polistes humilis are a native wasp species, 10-15 millimetres long, tan in colour with darker bands and some yellow on the face.

Paper wasps are a social wasp consisting of small colonies of 12-20 individuals.
Adult wasps feed on nectar and make ‘paper’ nests by mixing saliva and wood fibres.
Nests are a nursery where larvae are kept one to each cell.
The larvae are fed on chewed-up caterpillars caught by the adults.
The cells are then capped and the larvae pupate. Most paper wasps die in autumn or winter, while some hibernate to start new nests next season.

Paper wasps have some beneficial value as predators of pest caterpillars, however they have a painful sting and will attack any person approaching or disturbing their nest.

Nests likely to be disturbed represent a hazard and should be avoided during the day.
The wasps at the top were watching me closely, I was watching them for flight. It was a good day for all. I had never observed them before feeding the larvae. Fascinating even if they do look pretty mean, especially the one on the top left !!!