E. mixta are varying shades of glossy metallic blue or deep violet with a refractive sheen transitioning to purple, red and finally orange at the tip of the abdomen.

[citation needed] The native range of E. mixta extends northwards and westwards from Southern Brazil all the way to the isthmus of Tehuantepec, Mexico.

They are generally solitary bees and in order to attract a mate, males gather a collection of various scents creating a sort of perfume which they store in a pit on their hind legs then releases this fragrance and fanning their wings to disperse it.

[citation needed] The taxonomy of bees in the genus Euglossa is highly complicated as there are many similarities and groups of species which are genetically closely related.

Based on genetic analysis Euglossa mixta appears to be most closely related to E. sapphirina within the species group typified by E. analis.