Trosia dimas

Trosia dimas, the rosy ermine, is a moth in the family Megalopygidae. It is found in Colombia, Venezuela, Ecuador, Brazil, and Peru.

Trosia dimas
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Megalopygidae
Genus:
Trosia
Species:
T. dimas
Binomial name
Trosia dimas
(Cramer, 1775)
Synonyms
  • Phalaena dimas Cramer, 1775
  • Trosia amarilla Hopp, 1922
  • Trosia donckieri Dognin, 1924
  • Trosia flava Dognin
  • Trosia fumosa Hopp, 1934
  • Trosia incostata Schaus, 1905
  • Sciathos metaleuca Druce, 1906
  • Trosia misda Dyar, 1910
  • Trosia nigra Hopp, 1932
  • Trosia obsolescens Dyar, 1899
  • Trosia rosita Schaus, 1920
  • Trosia tolimata Dognin, 1922
  • Bombyx tricolora Fabricius, 1787

Taxonomy

The first description of this species was by Pieter Cramer in 1775, who named it Bombyx dimas.[1] Subsequent authors placed it in the genera Chrysauge, Idalus, and Sciathos until Harrison Dyar, following Hübner in 1822, assigned it to Trosia, where it has remained.[2]

Description

This species has a wingspan of about 34 millimetres (1.3 in). The head, abdomen, and legs are reddish and the tarsi black, spotted with white. The collar and thorax are yellowish buff, the latter spotted with red. The forewings are greenish yellow, with a postmedial row of black spots. The hindwings are roseate. The underside is dull roseate. In this species, the costa of the forewings is of the same color as the wing.[3]

Byrsonima coccolobifolia is the host plant of the Trosia dimas

Habitat

Trosia dimas is found in rainforests and cloud-forest at altitudes between 300 and 1,700 meters.[4] The Byrsonima coccolobifolia is the host plant of Trosia dimas.[5]

Range

Trosia Dimas has been observed in Colombia, Venezuela, Ecuador, Brazil and Peru.[4] Observations recorded in various collections and citizen science initiatives suggest the range where this species occurs is from South America to North America[6]

Taxonomy

Trosia dimas is a species in the genus Trosia.[6] It was first described by Pieter Cramer in 1775.[6]

References
  1. Beccaloni, G.; Scoble, M.; Kitching, I.; Simonsen, T.; Robinson, G.; Pitkin, B.; Hine, A.; Lyal, C., eds. (2003). "Trosia dimas". The Global Lepidoptera Names Index. Natural History Museum. Retrieved May 16, 2018.
  2. Dyar, Harrison G. (1899). "The Megalopygid Genus Trosia, with Description of a New Species". Journal of the New York Entomological Society. 7: 173–174. ISSN 0028-7199. Wikidata Q104144767.
  3. Schaus, William (1906). "Descriptions of new South American moths". Proceedings of the United States National Museum. 29: 179–345.
  4. "Moths of the Andes - Trosia dimas". www.learnaboutbutterflies.com. Retrieved 2020-12-12.
  5. Diniz, I. R., Morais, H. C., & Camargo, A. J. A. (2001). Host plants of lepidopteran caterpillars in the cerrado of the Distrito Federal, Brazil. Revista Brasileira de Entomologia, 45(2), 107-122.
  6. Registry-Migration.Gbif.Org (2019), GBIF Backbone Taxonomy, GBIF Secretariat, doi:10.15468/39omei, retrieved 2020-12-19


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