"In North America, grass flies are also known as frit flies or chloropid flies depending on the species and region. Grass flies (Chloropidae) are small, typically 1.5 to 4 mm in length, and range in colour from black to yellow or greenish. Many species have a shiny body with characteristic striping or a metallic sheen. Their compact bodies and rapid movements make them resemble fruit flies, but they can often be distinguished by their unique wing venation and habitat preference." pestlex.com

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The above individual was visible to the naked eye as only a dark speck on a marigold bloom. What a surprise to find a miniscule, itty-bitty fly and not just a speck of dirt.