Bibio imitator

Bibio imitator, common name garden maggot, is a species of fly from the genus Bibio, first described by Francis Walker in The Entomological Magazine vol 2, 1835. It occurs in Australia and New Zealand.

Description
Grows to length of 6. 5–7. 5 mm, with wings measuring 6.5 mm. Has an all-black coloring, with brown smokey wings. Features a dense yellow pile on the body of the males. A rufous head, thorax, and abdomen. Dark reddish-brown to black legs (excluding the coxae) of the females