Porthecla gemma is a butterfly in the family Lycaenidae. It is found in the Amazon basin and the Guianas at altitudes between 100 and 1,000 meters.
The length of the forewings is 14.6 mm for males and 13.9 mm for females., 2011: Species level taxonomy of the Neotropical hairstreak genus Porthecla (Lepidoptera: Lycaenidae: Theclinae: Eumaeini). Annales de la Société Entomologique de France (n.s.), 47(1-2): 241-259 Adults are on wing year-round.
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