A new Acco Bethune-Baker, 1904 species from Yapen Island, and the male of A. fasciata De Vos & Van Mastrigt, 2007 described for the first time, with a review of the genus (Lepidoptera: Erebidae, Arctiinae)

Q: What does this research mean for the field?

The genus Acco contains at least six species, including the newly discovered A. aureandroconia from Yapen Island and the newly described male of A. fasciata. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

DAAWIA SUHARTIWAN; R. de Vos

doi:10.5281/zenodo.22232496

September 7, 2026Open Access

A new Acco Bethune-Baker, 1904 species from Yapen Island, and the male of A. fasciata De Vos & Van Mastrigt, 2007 described for the first time, with a review of the genus (Lepidoptera: Erebidae, Arctiinae)

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Key Points

Describe a newly discovered Acco species from Yapen Island, document the unknown male of Acco fasciata, and provide a systematic morphological review of all six recognized species in the genus.
Conducted comparative morphological evaluations of adult specimens across the genus Acco.
Prepared and illustrated diagnostic male and female genitalia to delineate species-level boundaries.
Described Acco aureandroconia sp. n. as a new species distinguished by diagnostic adult and genital morphology.
Documented and illustrated the male of Acco fasciata for the first time and recognized a novel phenotypic form of Acco albipuncta.
Synthesized taxonomic illustrations of adults and genitalia for all six confirmed species within the genus Acco.

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Implication

Taxonomic review describes a new moth species and previously unknown male morphology in Acco, indicating broader morphological diversity within the Arctiinae subfamily.

Abstract

A new species in the genus Acco Bethune-Baker, 1904 is described, A. aureandroconia sp. n., and the male of A. fasciata De Vos & Van Mastrigt, 2007 has been discovered and is described for the first time. A new form of A. albipuncta De Vos & Van Mastrigt, 2007 has been found and is depicted. A review of all six known Acco species is given, the adults and genitalia are presented.

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SUHARTIWAN et al. (2026) studied this question.

synapsesocial.com/papers/6a9fd83b58e84d0ff5b4793f https://doi.org/10.5281/zenodo.22232496

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A new Acco Bethune-Baker, 1904 species from Yapen Island, and the male of A. fasciata De Vos & Van Mastrigt, 2007 described for the first time, with a review of the genus (Lepidoptera: Erebidae, Arctiinae)

Key Points

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A new Acco Bethune-Baker, 1904 species from Yapen Island, and the male of A. fasciata De Vos & Van Mastrigt, 2007 described for the first time, with a review of the genus (Lepidoptera: Erebidae, Arctiinae)

Key Points

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Implication

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