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Moths of the Amazon and Andes
Saffron-barred Agaristid
Seirocastnia amalthea  DALMAN, 1823
Superfamily - NOCTUOIDEA
Family - NOCTUIDAE
subfamily - AGARISTINAE
Tribe -
Seirocastnia amalthea, Rio Madre de Dios, 400m, Peru  Adrian Hoskins
Introduction
The subfamily Agaristinae is comprised of about 150 genera found across tropical and subtropical regions of the world.
There are 12 Seirocastnia species, variously distributed from Costa Rica to Peru and Brazil. All are black with bright yellow markings, and have slightly clubbed antennae.
Seirocastnia amalthea is found in Peru, and probably also in Brazil and Ecuador.
Habitats
This species inhabits rainforest at elevations between about 100-800m.
Lifecycle
Unknown.
Adult behaviour

In August 2009, I found about half a dozen adults of this species aggregating with Euchontha frigida, Cyllopoda claudicula and various butterflies, imbibing mineralised moisture from the edge of a tiny stream emptying into the Rio Madre de Dios in Peru.

The bold saffron-on-black pattern suggests that this species is either toxic to birds, or has evolved to mimic other species that are toxic.

 

 

 

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