Butterflies of the
Amazon and Andes
Family - RIODINIDAE
subfamily - RIODININAE
Tribe - NYMPHIDIINI
Aricoris incana, Rio Shima, Peru
© Dave Griffiths
There are 24 known species in the genus
Aricoris, including 2 recently
discovered by Hall & Harvey which have not yet been assigned
Most Actoris species have orange-brown
uppersides with dark markings, and a series of black sub-marginal
spots on the hindwings. There are 2 exceptions -
constantius which is almost entirely
dark brown, and terias, a species from
Paraguay which is yellowish with a black apex. The undersides of
most species are similar, with markings that reflect the upperside,
but are less colourful while at the same time being more contrasty.
The genus has
representatives from Panama to Paraguay, Uruguay and Chile. The most
widespread species is chilensis which
is found in Paraguay, Uruguay, Argentina, Bolivia and Chile.
Actoris incana is known from Peru and
Argentina, but almost certainly also occurs in Bolivia.
This butterfly normally inhabits arid grasslands at altitudes
between 1500-2000m. Its occurrence in August 2012 at Shima where the
altitude is 450m may seem initially puzzling. At the time however
several other unexpected species ( e.g.
Steroma bega ) were also present, having been channelled down
through the valley from higher altitudes during a mass multi-species
To be completed.
only observation of this species is of a singleton found settled on
the ground on a logging road at Shima.