Published November 8, 2023 | Version v1
Taxonomic treatment Open

Acasis exviretata Inoue 1982

  • 1. Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia.
  • 2. Sakhalin Territory Department of Hydrometeorology and Environmental Monitoring, Sakhalinskaya oblast, Yuzhno-Sakhalinsk, Russia.

Description

Acasis exviretata Inoue

(Figs 24, 59a, 59b, 60)

Acasis exviretata: Beljaev & Mironov 2019: 256, 386 (note 8679) (Sakhalin).

? Acasis appensata baicalensis (sic.!) [baikalensis], nec (Bang-Haas): Viidalepp 1978: 758 (Sakhalin); Viidalepp 1996: 48 (Sakhalin); Kurina 2022b: GBIF occurrences 3023176725, 3023179773, 3023181731 (Pyatirechye).

Material examined. 2 ♂, S Kholmsk, 03.VII.2017, 20.VI.2021; 4 ♂, 7 ♀,Yasnomorskoe, 19, 20, 23, 25, 26.VII.2019; 1 ♂, Yasnomorskoe, 18, 19.VIII.2020; 1 ♂, “Kaibato [Moneron], 6.VIII [19]34, Saghalien Cent. Exp. Sta. ”.

Distribution. Russia (S RFE: SW Sakhalin, *Moneron, S Kurils—Kunashir), Japan (Hokkaido, Honshu).

Remarks. The finding of A. exviretata in Sakhalin significantly expands its distribution range to the north. The host plants of the larvae of this species in Japan are Actaea simplex and A. japonica (Ranunculaceae) (Hashimoto 2021). In Sakhalin the moths were recorded from mid-June to second half of August; possibly, the species develops here in two generations.

Presence of true A. appensata in Sakhalin is doubtful (Table 2). The report of “ Acasis appensata baicalensis ” (Viidalepp 1978, 1996; Kurina 2022b) from “Pjatiretšje” (a Pyatirechye village in the Kholmskii urban district, SW Sakhalin) is probably based on a misidentification of A. exviretata, since this place is located close to our colection sites of the latter species.

Beljaev & Mironov (2019), along with the first report of this species from Sakhalin, restored A. exviretata from a synonymy with A. appensata (Eversmann) but without the material data and argumentation. Recently Hashimoto (2021) also accepted specific status of A. exviretata and provided its discriminating characters compared to A. appensata (loc. cit.: 54). Nevertheless, he also admitted a possible subspecific status of A. exviretata relatively to A. appensata. However, these two taxa clearly differ in a number of stable characters and do not have the “transitional” features between the neighbouring island and continental populations. Thus, morphologically, specific status of A. exviretata is not doubtful. Indication of Korea in the distribution of A. exviretata by Hashimoto (2021) was taken from Choi (2007b). But the photos of the moths and the genitalia of “ Acasis appensata ” (Choi 2007b, figs 3, 4, 8, 9, 13), which actually correspond to A. exviretata, apparently were taken from the Japanese specimens, since those from Korea are not mentioned by Choi in the examined material. The report of A. exviretata from Korea by Oh (1994) is based on a misidentification of A. appensata, as it is seen from the photos of the moth and the male genitalia (Oh 1994, figs 2 and 6). So, the reliable data on A. exviretata in Korea are absent.

Notes

Published as part of Beljaev, Еvgeniy A. & Titova, Olga L., 2023, New data on geometroid moths (Lepidoptera: Geometroidea: Uraniidae and Geometridae) from Sakhalin and Moneron islands with notes on their taxonomy distribution and ecology, pp. 1-41 in Zootaxa 5369 (1) on page 15, DOI: 10.11646/zootaxa.5369.1.1, http://zenodo.org/record/10147411

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Linked records

Additional details

Biodiversity

Collection code
S
Event date
2021-06-20
Family
Geometridae
Genus
Acasis
Kingdom
Animalia
Order
Lepidoptera
Phylum
Arthropoda
Scientific name authorship
Inoue
Species
exviretata
Taxon rank
species
Verbatim event date
2017-07-03/2021-06-20
Taxonomic concept label
Acasis exviretata Inoue, 1982 sec. Beljaev & Titova, 2023

References

  • Beljaev, E. A. & Mironov, V. G. (2019) Geometridae. In: Sinev, S. Yu. (Ed.), Catalogue of the Lepidoptera of Russia. 2 nd Edition. Zoological Institute RAS, St. Petersburg, pp. 235 - 281. [in Russian]
  • Viidalepp, J. (1978) Spisok pyadenits fauny SSSR. 3. [A list of Geometridae of the fauna of USSR. 3]. Entomologicheskoe Obozrenie, 57 (4), 752 - 761. [in Russian]
  • Viidalepp, J. (1996) Checklist of the Geometridae (Lepidoptera) of the former USSR. 2 nd Edition. Apollo Books, Stenstrup, 111 pp.
  • Kurina, O. (2022 b) Acasis appensata subsp. baicalensis (A. Bang-Haas, 1906), GBIF occurrences 3023176725, 3023179773 and 302318173. In: Estonian University of Life Sciences Institute of Agricultural and Environmental Sciences Entomological Collection. Estonian University of Life Sciences. Occurrence dataset accessed via GBIF. org. Available from: https: // www. gbif. org / occurrence / 3023176725, https: // www. gbif. org / occurrence / 3023179773, and https: // www. gbif. org / occurrence / 3023181731 (assessed 4 February 2022) https: // doi. org / 10.15468 / qn 6223
  • Hashimoto S. (2021) Taxonomic study of the Japanese Trichopterygini (Lepidoptera: Geometridae: Larentiinae), with a proposal of a new tribe Heterophlebini. Japanese Journal of Systematic Entomology, Monographic Series, 6, 1 - 146.
  • Choi, S. - W. (2007 b) Taxonomic review of the genus Acasis Duponchel (Lepidoptera: Geometridae) from Korea. Entomological Research, 37 (3), 203 - 207. https: // doi. org / 10.1111 / j. 1748 - 5967.2007.00113. x
  • Oh, S. - H. (1994) Four species of Geometridae (Lepidoptera) new to Korea. Journal of the Lepidopterists' Society of Korea, 7, 31 - 32.