Euphilotes spaldingi  Euphilotes spaldingi, or Spalding's blue, is a butterfly of the family Lycaenidae. The species was first described by William Barnes and James Halliday McDunnough in 1917. It is found in North America. The MONA or Hodges number for "Euphilotes spaldingi" is 4369.1. Two subspecies belong to "Euphilotes spaldingi": Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = BugGuide