Row 1 (left to right): Dorsal views of Eunica chlorochroa mira (male); Eunica chlorochroa mira (female); Eunica sophonisba (male).
Row 2 (left to right): Dorsal views of Heliconius numata; Heliconius cydno; Heliconius atthis.
Row 3 (left to right): Dorsal views of Evenus felix (male); Marpesia corita (male). Ventral view of Evenus felix (male).
Part of the collection donated to the Smithsonian Institution National Museum of Natural History by retired U.S. Marine Colonel Stanley S. Nicolay, who was known for his field research on the butterflies of Panama and Ecuador and for his taxonomic papers on Neotropical Lycaenidae and Hesperiidae. Nicolay, who was a longtime collaborator with Smithsonian engomologists, donated his collection of 42,000 specimens to the Museum.