Ooencyrtus marcelloi

Ooencyrtus marcelloi is a parasitic wasp belonging to the family Encyrtidae. The species was first discovered in 2008 in a tropical lowland rainforest in the Soberanía National Park around Gamboa, Panama. The scientific name was first published in 2010.

Female length 0.9 mm; male length 0.7-0.8 mm. The hosts of this parasitic wasp are eggs of Heliconiini butterflies. Parasitized eggs were found on passion vines: Passiflora auriculata, Passiflora biflora, Passiflora coriacea and Passiflora vitifolia. From one butterfly egg, a single wasp emerges.