Review of the genus Argyresthia Hübner, [1825] (Lepidoptera: Yponomeutoidea: Argyresthiidae) from China, with descriptions of forty-three new species Author Liu, Tengteng Author Wang, Shuxia Author Li, Houhun text Zootaxa 2017 4292 1 1 135 journal article 32781 10.5281/zenodo.827746 248cfde9-84c8-4101-887c-08f27ad5afac 1175-5326 827746 48A417CD-CA76-4CA1-8E2C-93DE2E681CCC 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.