Argyresthia (Argyresthia) beta Friese & Moriuti, 1968

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, Zootaxa 4292 (1), pp. 1-135 : 67-68

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.

Figures

FIGURES 1 – 8. Wing venation of Argyresthia spp. 1, A. (Blastotere) aureola, sp. nov., slide no. LTT 12525 W, paratype; 2, A. (B.) cineretra, sp. nov., slide no. LTT 12402 W, paratype; 3, A. (Argyresthia) cardiopetala, sp. nov., slide no. LTT 12041 W, paratype; 4, A. (A.) punctuata, sp. nov., slide no. LTT 12536 W, paratype; 5, A. (A.) subrimosa Meyrick, slide no. LTT 1303 W; 6, A. (A.) lanosa, sp. nov., slide no. LTT 12635 W, paratype; 7, A. (A.) beta Friese & Moriuti, slide no. LTT 12481 W; 8, A. (A.) ellipsoidea, sp. nov., slide no. LTT 12385 W, paratype. (Scales = 2.0 mm)

FIGURES 68 – 75. Adults of Argyresthia spp. 68, A. (Argyresthia) beta Friese & Moriuti, ♂; 69, same species, ♀; 70, A. (A.) cuprea, sp. nov., ♀, paratype; 71, A. (A.) aurilata, sp. nov., ♂, holotype; 72, A. (A.) convexa, sp. nov., ♂, holotype; 73, A. (A.) kaoyaiensis Moriuti, ♀; 74, A. (A.) dislocata Meyrick, ♀; 75, A. (A.) ellipsoidea, sp. nov., ♂, holotype. (Scales = 2.0 mm)

FIGURES 132 – 137. Eighth sternite and male genitalia excluding phallus of Argyresthia spp. 132, A. (Argyresthia) lata, sp. nov., slide no. LTT 12279, paratype; 133, A. (A.) alpha Friese & Moriuti, slide no. LTT 12670; 134, A. (A.) beta Friese & Moriuti, slide no. LTT 12672; 135, A. (A.) cuprea, sp. nov., slide no. LTT 12489, paratype; 136, A. (A.) aurilata, sp. nov., slide no. LTT 12508, paratype; 137, A. (A.) convexa, sp. nov., slide no. LTT 12502, holotype. (Scales = 0.2 mm)

FIGURES 190 – 193. Phallus of Argyresthia spp. 190, A. (Argyresthia) beta Friese & Moriuti, slide no. LTT 12672; 191, A. (A.) cuprea, sp. nov., slide no. LTT 12489, paratype; 192, A. (A.) aurilata, sp. nov., slide no. LTT 12508, paratype; 193, A. (A.) convexa, sp. nov., slide no. LTT 12502, holotype. (Scales = 0.2 mm)

FIGURES 245 – 252. Socii of Argyresthia spp. 245, A. (Argyresthia) alpha Friese & Moriuti, slide no. LTT 12670; 246, A. (A.) beta Friese & Moriuti, slide no. LTT 12672; 247, A. (A.) cuprea, sp. nov., slide no. LTT 12489, paratype; 248, A. (A.) aurilata, sp. nov., slide no. LTT 12508, paratype; 249, A. (A.) convexa, sp. nov., slide no. LTT 12502, holotype; 250, A. (A.) kaoyaiensis Moriuti, slide no. LTT 12369; 251, A. (A.) dislocata Meyrick, slide no. LTT 12376; 252, A. (A.) ellipsoidea, sp. nov., slide no. LTT 12878, holotype. (Scales = 0.1 mm)

FIGURES 290 – 292. Female genitalia of Argyresthia spp. 290, A. (Argyresthia) lata, sp. nov., slide no. LTT 12278, paratype; 291, A. (A.) alpha Friese & Moriuti, slide no. LTT 12671; 292, A. (A.) beta Friese & Moriuti, slide no. LTT 12142. (Scales = 0.5 mm)

FIGURES 185 – 189. Phallus of Argyresthia spp. 185, A. (Argyresthia) angusta Moriuti, slide no. LTT 12289; 186, A. (A.) surrecta, sp. nov., slide no. LTT 12357, paratype; 187, A. (A.) lanosa, sp. nov., slide no. LTT 12664, paratype; 188, A. (A.) lata, sp. nov., slide no. LTT 12279, paratype; 189, A. (A.) alpha Friese & Moriuti, slide no. LTT 12670. (Scales = 0.2 mm).