Nesagapostemon Nesagapostemon Nesagapostemon is an extinct monotypic genus of sweat bee in the Halictidae subfamily Halictinae. At present, it contains the single species "Nesagapostemon moronei". The genus name "Nesagapostemon" is derived from a combination of the Greek "nesos", meaning "island", and "Agapostemon", a very similar genus of halictids which may be related. The species is named in honor of Ettore Morone of Turin, Italy. The species is known from the holotype, a single long female currently in the private collection owned by Morone (catalog number MACT-1172), and which was first studied by Dr. Michael S. Engel. Engel published his type description
Euonymeia of Gaia with either Uranus or Cephissus. The name itself derives from the Greek root-words "eû" () "good, well", and "onoma" () "name". Alternative interpretations for the origin of the name are that it is a direct reference to the area being "well named" or "of good repute", or that it comes from the spindle tree "Euonymus europaeus". The medieval name "Trachones" derives from the word "trachoni" () meaning "rock", derived from the ancient Greek adjective "trachys" () meaning "coarse". The modern colloquial name "Ano Kalamaki" (upper Kalamaki) arose in 1968 when Euonymeia was administratively linked with the coastal settlement