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Antianthe expansa
These 3 brownish-green Treehopper females were busy scrapping the top layer off of a stem to lay their eggs. Amazingly, there was a little army of parasitic wasps all around them waiting to parasitize the eggs! The poor leaf-hoppers couldn't do anything about them and must have known they were there. They were also feeding and egg-laying on a Nightshade (Solanaceae). I rarely see anything on a nightshade plant. First instar nymphs and some older instar nymphs were also nearby (last 2 pictures). Family Membracidae, Subfamily Smiliinae.
Forested area with houses on the outskirts of San Cristobal de Las Casas, 2,200 meters.
The specimens of Antianthe in this link from Nicaragua, were also feeding on Nightshade: http://www.americaninsects.net/h/antiant.... See a more recent spotting of this species in Chiapas: http://www.projectnoah.org/spottings/202....
beautiful treehopper pics, Lauren...and excellent natural history observations!! Keep it up!!! This is the genus Antianthe, but I don't know about the species....