The species is known from the holotype, a single 9.9 millimetres (0.39 in) long female currently in the private collection owned by Morone (catalog number MACT-1172), and which was first studied by Dr. Michael S. Engel.

[1] The holotype is fairly well preserved in early Miocene (Burdigalian stage) Dominican amber from deposits on the island of Hispaniola.

The basal area of the Propodeum, not slanting in profile, is only half of the length of the vertical posterior surface.

The related extinct halictid genus Eickwortapis has a longer basal area on the Propodeum and it does slant in profile.

Unlike Eickwortapis the inner metatibial spur on Nesagapostemon is hooked and the inner border of the "C" vein is double the length of the pterostigma.