Lachana alpherakii

Lachana alpherakii is a species of moth of the subfamily Lymantriinae first described by Grigory Grum-Grshimailo in 1891. It is found in the high mountains of Tibet and China.[3]

Lachana alpherakii
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Erebidae
Genus:
Lachana
Species:
L. alpherakii
Binomial name
Lachana alpherakii
Synonyms[1]
  • Dasychira alpherakii Grum-Grshimailo, 1891
  • Gynaephora alpherakii (Grum-Grshimailo, 1891)
  • Dasychira semenovi Grum-Grshimailo, 1891
  • Dasorgyia grumi Staudinger, 1901
  • Trichosona haulberti Oberthür, 1911
  • Dasorgyia alpherakii f. staudingeri O.Bang-Haas, 1938
  • Phragmatobia oberthueri Rothschild, 1910[2]

Description

The wingspan is 22–27 mm. The head, thorax, and abdomen are covered with long silky hairs, mostly intense dark brown with yellowish. It is a very variable species. The wings are mostly yellow with dark brown bands. The basal area of the forewing is yellow lightly mixed with brown scales. The internal bands are dark brown. The hindwings are yellow with a dark brown marginal band.[1]

Taxonomy

Grigory Grum-Grshimailo first described this species from Qinghai, China, using the scientific name Dasychira alpherakii in 1891. The species epithet commemorates Sergei Alphéraky, a Greek Russian entomologist from Taganrog who spent the latter part of his life studying the Lepidoptera of Central Asia and East Asia. The following year, in 1892, William Forsell Kirby moved it to the genus Dasorgyia. In 1910 Embrik Strand moved it to the genus Gynaephora, where it was eventually placed in the subgenus Dasorgyia, with as type species G. pumila, by Douglas C. Ferguson in 1978,[1] and Karel Spitzer in 1984.[4] G. pumila was moved to Dicallomera pumila in 2008 by Tatyana A. Trofimova, who was then obliged to look into the other species in the subgenus Dasorgyia, and ended up moving all three to Lachana.[1]

A DNA study published by Vladimir A. Lukhtanov and Olga Khruleva in 2015 found the species Gynaephora aureata, G. jiuzhiensis, G. menyuanensis, G. minora, G. qinghaiensis, G. qumalaiensis and G. ruoergensis all to be closer related to Lachana alpherakii than to any of the other species of Gynaephora.[3] In 1984 Spitzer had suggested G. qinghaiensis was a synonym or a subspecies of G. alpherakii, although he did not formally move the taxon.[4] Trofimova also suggested in 2008 that G. qinghaiensis, G. aureata, G. ruoergensis and G. minora, all described from China by Chou and Ying in 1979, are possibly synonyms of Lachana alpherakii, although not having been able to study the type specimens, she was unable to say anything further.[1]

Distribution

The species has been collected numerous times around the lake of Koko Nor. In China it is known from the provinces, of Tibet (near a place rendered as "Jecundo") and further from west to east, neighbouring Qinghai (including Koko Nur, Tianjun County), and Gansu (including Ganzhou District, near Lanzhou and the Xining Mountains bordering Qinghai). There is also a doubtful record from much further west, in the Pamirs.[1]

Ecology

It is known from mountains at extremely high altitudes, having been collected or observed at elevations of 3000-4500m.[1]

The larvae feed on Elaeagnus angustifolia.[1]

It is the primary host species for the parasitoid is the chalcid wasp Sympiesis qinghaiensis of the subfamily Eulophinae in Qinghai.[5]

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References
  1. Trofimova, Tatyana A. (January 2008). "Systematic notes on Dasorgyia Staudinger, 1881, Dicallomera Butler, 1881, and Lachana Moore, 1888 (Lymantriidae)" (PDF). Nota Lepidopterologica. 31 (2): 273–291. ISSN 0342-7536. Archived from the original (PDF) on 23 April 2012. Retrieved 26 November 2019.
  2. Schmidt, C.; De Freina, J. (2011). "Generic placement of the Neotropical species of "Phragmatobia" (Erebidae, Arctiinae), with a remarkable matrivorous species from the Peruvian Andes". ZooKeys. 149 (149): 69–88. doi:10.3897/zookeys.149.2382. PMC 3234410. PMID 22207795.
  3. Lukhtanov, Vladimir A.; Khruleva, Olga (2015). "Taxonomic Position and Status of Arctic Gynaephora and Dicallomera Moths (Lepidoptera, Erebidae, Lymantriinae)" (PDF). Folia Biologica (Kraków). 63 (4): 257–261. doi:10.3409/fb63_4.257. ISSN 1734-9168. PMID 26975140. Retrieved 22 November 2019.
  4. Spitzer, Karel (30 June 1984). "Notes on taxonomy and distribution of the genus Gynaephora Hübner, 1819 (Lymantriidae)" (PDF). Nota Lepidopterologica. 7 (2): 180–183. ISSN 0342-7536. Retrieved 28 November 2019.
  5. Pitkin, B. R. (19 August 2003). "Sympiesis qinghaiensis Liao , 1987". Universal Chalcidoidea Database. Department of Entomology, The Natural History Museum. Retrieved 28 November 2019.


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