Butterflies of the Amazon and Andes
Falcate Emesis
Emesis tenedia  FELDER & FELDER, 1861
subfamily - RIODININAE
Tribe - Incertae sedis
Emesis tenedia, male, Satipo, Peru Emily Halsey
The distinctive wing pattern and shape of Emesis make them instantly recognisable as a genus, but some of the 41 species can be difficult to tell apart, requiring close examination of the markings.
Only 4 Emesis species have a falcate apex to the forewings - angularis, sinuata, tegula and tenedia. The first two have an angular tornus on the hindwings, narrowing the identification of the illustrated insect to two near-identical 'sister' species tegula and tenedia. Both are subject to variation in their markings, and their distribution ranges overlap, so it can sometimes be difficult to tell them apart, but tegula tends to have more conspicuous dark bands.
Emesis tenedia is distributed from Mexico to Peru and Brazil.
This species occurs in primary and secondary forest, at altitudes between about 200-800m.
The eggs of Emesis species are typically white and highly sculptured. They are laid singly or in clusters of up to 30, according to species. The known larval foodplants encompass the families Ranunculaceae, Euphorbiaceae, Rhizophoraceae, Sterculiaceae, Anacardiaceae and Nyctaginaceae.
Adult behaviour

Males are usually encountered as singletons amongst multi-species aggregations of mud-puddling butterflies. Females never mud-puddle, but can sometimes be found basking on foliage in light gaps in the forest.



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