Rosy Ermine (Trosia (dimas) sp. (Cramer, 1775))
Scientific name: Trosia (dimas) sp. (Cramer, 1775)
Common name: Rosy Ermine
Other names: Trosia Flannel Moth
French name: Trosia du groupe dimas
Order: Lepidoptera
Suborder: Heterocera
Family: Megalopygidae
Subfamily: Trosiinae
Wingspan: 45-60 mm.
Biotope: Tropical rain forest.
Geographic area: South America, including Ecuador, Colombia, Venezuela, Guyana, Suriname, French Guiana, Brazil, Peru.
Flight time: All year round.
Number of generations :
Caterpillar:
Host plant:
The Trosia genus includes 17 species, with 4 of them being very similar and forming the dimas group. This is Trosia dimas, Trosia nigropunctigera, Trosia rosita and Trosia obsoleta.
They are characterized by white or slightly pinkish fore wings crossed by an alignment of small post median black spots. There is often a red mark on the costal edge.
The thorax is white and marked with 6 red spots.
The head, the abdomen (except the tip) and the hind wings are red.

Rosy Ermine (Trosia (dimas) sp.) - French Guiana, France - March 15th 2012
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Rosy Ermine (Trosia (dimas) sp.)
I have shot this picture at Roura, at Camps Patawa, during a light trap night session.


Rosy Ermine (Trosia (dimas) sp.) - French Guiana, France - March 15th 2012
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Rosy Ermine (Trosia (dimas) sp.)
You can clearly see the abdomen and the hind wings on this picture.

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