Kingdom:   Animalia
Phylum:     Arthropoda
Class:        Insecta
Order:       Diptera
Suborder:   Brachycera
Infraorder: Muscomorpha
Section:     Schizophora
Subsection: Calyptratae
Superfamily: Muscoidea
Family:      Muscidae

This small house fly is a very distinctive species, with a golden face, and tachinid like antennae (especially in the male). It is quite common in Auckland, even in urban areas. Nobody can put a name on it. It may be an overlooked native species, as muscid experts overseas do not recognise it.

Small house fly Family Muscidae.JPG

Small house fly Family Muscidae-003.JPG

The wing veins.
Small house fly Family Muscidae-002.JPG

Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0