[1] The species is known from a single female specimen, the holotype, deposited in the American Museum of Natural History, and which was first studied by Dr. Michael S. Engel.

[1] Extremely well preserved in early Miocene Burdigalian[2] stage Dominican amber from the island of Hispaniola, the female individual is very slightly compressed along the legs and head but without apparent destruction of details and the specimen is free from "schimmel", a type of white mold sometimes present on arthropods in amber.

[1] The wings of the female are either slightly folded or crumpled and held at an angle to the line of the thorax.

The legs are dark brown to black with strong metallic green highlights, while the wings are hyaline.

[1] N. electra can be identified from the extinct halictid genus Oligochlora by differences in the mesoscutum and carinate pronotal ridge.