Butterflies of the
Amazon and Andes
FELDER & FELDER,
Family - RIODINIDAE
subfamily - RIODININAE
Emesis tenedia, male, Satipo, Peru
© Emily Halsey
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
Emesis species have a falcate apex to
the forewings - angularis,
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
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.
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