Argyresthia (Argyresthia) beta Friese & Moriuti 1968
Creators: name: Liu, Tengteng
name: Wang, Shuxia
name: Li, Houhun
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Yponomeutidae
Argyresthia
Argyresthia beta

description: 57. Argyresthia (Argyresthia) beta Friese & Moriuti, 1968
(Figs. 7, 68, 69, 134, 190, 246, 292)
Argyresthia beta Friese & Moriuti, 1968: 15. TL: Japan (Mt. Makinosan, Izumi, Honsyû). TD: UOPJ.
Description. Adult (Figs. 68, 69) wingspan 12.0̄ 12.5 mm.
Variation. Forewing with a broad dorsal band before the middle, almost truncate at the apex, and a dorsal spot beyond it rectangular (Fig. 68), or a broad dorsal band bluntly oblique at the apex and a dorsal spot beyond it widened towards the costa (Fig. 69); the latter form matching the holotype (Friese & Moriuti 1968).
Male genitalia: As in Figs. 134, 190 and 246.
Female genitalia: As in Fig. 292.
Material examined. Japan: Holotype, Ƌ, Mt. Makinosan, Izumi, Honsyû, 28.v.1960, leg. S. M[o]R[iu]T[i], slide no. G. YPAR 11 ♂, registered No. OPU-LIN-LE 2007I 3122; Paratype: 1♀, same data as holotype, registered No. OPU-LIN-LE 2007I 3120. China: Zhejiang Province: 2Ƌ, 1♀, Shunxiwu (30.04°N, 118.94°E), Mt. Qingliangfeng, Lin'an City, 390 m, 20.v.2012, leg. Linlin Yang and Zhenguo Zhang, slide nos. LTT12142♀, LTT12143♂; 1♂, 2♀, Longtangshan (30.13°N, 118.91°E), Mt. Qingliangfeng, Lin'an City, 390̄ 500 m, 21̄ 22.v.2012, leg. Linlin Yang and Zhenguo Zhang, slide nos. LTT12672♂, LTT12674♀; 1♂, Longtangshan (30.13°N, 118.91°E), Mt. Qingliangfeng, Lin'an City, 900̄ 1700 m, 22.v.2012, by net, leg. Linlin Yang and Zhenguo Zhang. Guizhou Province: 2Ƌ (1 ex. without abdomen), Huguosi (27.95°N, 108.62°E), Mt. Fanjing, 1390 m, 28.v.2002, leg. Xinpu Wang, slide no. LTT12107. Hubei Province: 2♀, Taohuachong (30.59°N, 116.01°E), Yinshan County, 635 m, 23̄ 24.vi.2014, leg. Wei Guan and Meiqing Yang, slide no. LTT12673.
Host plant: Rhododendron macrosepalum Maximowicz (Ericaceae) (Moriuti 1968).
Distribution. China (Guizhou, Hubei, Zhejiang), Japan.
Diagnosis. This species is similar to A. (A.) alpha and A. (A.) taiwanensis in having a short broad white dorsal band on the forewing, a white dorsal spot beyond the middle of the wing, and a dark dorsal spot before the middle of the wing (between the preceeding white band and spot). Argyresthia (A.) beta can be separated from the latter two species by the forewing having a triangular white dorsal spot beyond the middle of the wing, which is subtrapezoidal in the latter two species. In the male genitalia of A. (A.) beta the phallus is 3.8 times as long as the width of the valva (Figs. 134, 190), whereas it is 7.0 times as long as the width of the valva in A. (A.) alpha (Figs. 133, 189) and 2.8 in A. (A.) taiwanensis. Argyresthia (A.) alpha can be further separated from A. (A.) taiwanensis by the forewing having a quadrate golden-brown dorsal spot before the middle of the wing, which extends obliquely outward in the latter species.
description: Published as part of Liu, Tengteng, Wang, Shuxia & Li, Houhun, 2017, Review of the genus Argyresthia Hübner, [1825] (Lepidoptera: Yponomeutoidea: Argyresthiidae) from China, with descriptions of forty-three new species, pp. 1-135 in Zootaxa 4292 (1) on pages 67-68, DOI: 10.5281/zenodo.827746