Moths of the Amazon
Superfamily - NOCTUOIDEA
Family - NOTODONTIDAE
subfamily - DIOPTINAE
Myonia regis, Satipo, Peru ©
Dioptinae comprises of 456 known species arranged into 2 tribes and
43 genera. The moths are almost entirely neotropical in
distribution: only one species Phryganidia
californica being found north of Mexico. All are day-flying,
and most are brightly coloured, typically with aposematic patterns
in yellow, orange or white on a black ground colour. They are
involved in Batesian mimicry rings with various Ithomiine
butterflies, and with moths from the subfamilies Arctiinae (
Erebidae ) and Sterrhinae ( Geometridae ).
Dioptinae, like most other moths have tympanal organs 'ears' at the
base of the thorax. These are generally accepted as having evolved
to allow them to detect the echo-location calls of predatory bats.
These moths however are all day-flying species, and experiments have
shown that they are virtually deaf. This implies that their
ancestors were nocturnal, and that the ability to hear was lost when
they evolved to become day-flying and were no longer exposed to
The genus Myonia ( previously known as
Erbessa ) comprises of 59 known
species. All are brightly coloured black and yellow day-flying moths.
Myonia regis is found in Ecuador, Peru
This species inhabits rainforest and cloudforest at elevations
between about 200-800m.
To be completed.
adults are active in bright sunshine and can often be found as
singletons imbibing mineralised moisture from the edges of puddles or