Looks like a member of a group of flies commonly called long legged flies (Family Dolichopodidae). It seems most are shades of green or gold/copper color and are beneficial.
"Dolichopodids occur in diverse habitats; larvae are commonly found in moist soil and under tree bark and adults are often abundant near streams, and are found on foliage, tree bark, and flowers of various plants. Both larvae and adults are predaceous on many other insects and small arthropods, including mites, thrips, psocids, aphids, and other insects larvae. The maggot like larvae of the long-legged fly are found in such habitats as soil, rotted vegetation, mud, and under bark. Most are predators or scavengers."1
Eclectic gardening style, drawing from 45 years of interest and experience. Mostly plant in raised beds and containers primarily using intensive gardening techniques.