This insect is not a Wasp.
Wasps normally have a thin waist and longer antenae.
The "Tun-Tun Pretu" is a Fly.
It's Thorax is completely black.
Legs colour are black and yellow.

Size is approximately 15 mm long.
The antenae is short.
Wings are purplish in colour.
Wings are always fold together ( closed ).

CHARACTERISTICS:
She lands everywhere, but for short period of time.
When still standing, she flipped the antennae alternating up and down.