Porthecla forasteira is a butterfly in the family Lycaenidae. It is found in Peru, Bolivia and French Guiana. The habitat consists of lowland areas.
The length of the forewings is 15.9 mm for males., 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
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