Argyresthia (Blastotere) aureola, Liu, Tengteng, Wang, Shuxia & Li, Houhun, 2017

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 : 15-16

1. Argyresthia (Blastotere) aureola , sp. nov. ( Figs. 1 , 12 , 76 , 84 , 141 , 197 , 253 )

Description. Adult ( Figs. 12 , 76 ) wingspan 8.5̄9.0 mm. Head with vertex white, face yellowish white. Labial palpus light yellow. Antenna with scape white, pecten yellowish fuscous; flagellum grayish white, ringed with black. Foreleg predominantly yellowish white, femur densely covered with gray transverse striae on inner surface, tibia blackish fuscous on inner surface, with blackish-fuscous dot at base, middle, and distally on outer surface, tarsus blackish fuscous at apex of each tarsomere; midleg predominantly yellowish white, tibia with black dot dorsally near base and at middle, tarsus black distally on each tarsomere; hindleg white mixed with gray, tarsus black on distal part of each tarsomere. Thorax white; tegula golden. Forewing ratio 4.0; ground color blackish gray, with blue reflection under vertical light; costa with several indistinct white dots, white dot at about distal 1/10 largest; golden streak extending below basal 2/7 of fold; golden spot at basal 3/10 of cell; two parallel golden dorsal fasciae running from basal 1/3 and before middle of wing extending obliquely outward to costal at 2/5 and 3/ 5, respectively; termen with three ill-defined golden dots; cilia grayish white at base and before tips, gray near tornus. Hindwing and cilia uniformly gray. Abdomen dark gray dorsally, pale gray ventrally.

Venation ( Fig. 1 ). Forewing with R4 and R5 separate; hindwing with M3 and CuA1 stalked.

Male genitalia ( Figs. 84 , 141 , 197 ). Tuba analis shorter than width of valva. Socius covered with 19 scale-like setae, bearing a single seta posteriorly ( Fig. 197 ). Valva with basal 2/5 uniform in width, distal 3/5 slightly narrowed to rounded apex; transtilla curved nearly 90° at middle. Saccus triangular, truncate anteriorly. Phallus nearly straight, 5.5 times as long as width of valva, with a row of micro-denticles on outer surface distally ( Fig. 141 b); cornutus with three strong denticles elongated towards apex ( Fig. 141 a). Second sternite with five microsetae in each row; eighth sternite Y-shaped. Coremata present.

Female genitalia ( Fig. 253 ). Ovipositor 2.5 times as long as eighth segment. Anterior apophysis 4/5 length of posterior apophysis, bifurcate at distal 1/3; branch bifurcate a second time, dorsal branch extending to lamella postvaginalis, ventral branches joined and forming ventral margin of ostium bursae. Lamella postvaginalis nearly inverted V-shaped. Antrum elongate funnel-shaped, 1.5 times as long as eighth segment. Ductus bursae evenly widened anteriorly; ductus seminalis originating from middle. Corpus bursae oval, with dense denticles, sparser anteriorly; signum with horns slightly curved inward, C-shaped.

Type material. CHINA: Holotype, Ƌ, Mt. Mian (36.87°N, 111.99°E), Jiexiu County, Shanxi Province, 1370 m, 27.vii.2013, leg. Tengteng Liu and Peixin Cong, slide no . LTT12305Ƌ. Paratypes: Shanxi Province: 1Ƌ, 3♀, 24̄ 29.vii.2013, other same data as holotype, slide no . LTT12525W; 7♀, 14̄ 17.vii.2014, leg. Tengteng Liu, Meiqing Yang and Sihan Lu, other same data as holotype; 1Ƌ , 5♀, Mt. Tianlong (37.73°N, 112.37°E), Taiyuan City , 1280 m, 12̄ 16.vii.2013, leg. Tengteng Liu and Peixin Cong, slide no . LTT12304 ♀. Hebei Province : 1♀, Mt. Xiaowutai (39.97°N, 114.81°E), Wei County, 800 m, 20.viii.2005, leg. Yunli Xiao, slide no. LTT12306.

Distribution. China (Hebei, Shanxi).

Diagnosis. This new species is similar to A. (B.) chamaecypariae Moriuti, 1969 in forewing pattern, but it is distinguished by features of the genitalia. In A. (B.) aureola the phallus is 5.5 times as long as the width of the valva in the male genitalia, and the antrum is 1.5 times as long as the eighth segment in the female genitalia; in A. (B.) chamaecypariae the phallus is 3.3 times as long as the width of valva, and the antrum is as long as the eighth segment. The new species is similar to A. (B.) sporadolepis in the female genitalia, and a diagnosis is provided under the latter species.

Etymology. The specific name is derived from the Latin aureolus, meaning golden, indicating the golden streaks and fasciae on the forewing.

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 12 – 19. Adults of Argyresthia spp. 12, A. (Blastotere) aureola, sp. nov., ♀, paratype; 13, A. (B.) sporadolepis, sp. nov., ♀, paratype; 14, A. (B.) cineretra, sp. nov., ♂, holotype; 15, A. (B.) cineretra, sp. nov., ♀, paratype; 16, A. (B.) affinicineretra, sp. nov., ♂, holotype; 17, A. (B.) albaureola, sp. nov., ♀, paratype; 18, A. (B.) densa, sp. nov., ♀, paratype; 19, A. (B.) anthocephala Meyrick, ♀. (Scales = 2.0 mm)

FIGURES 76 – 83. Live adults of Argyresthia spp. 76, A. (Blastotere) aureola, sp. nov.; 77, A. (B.) sporadolepis, sp. nov.; 78, A. (Argyresthia) mala, sp. nov.; 79, A. (A.) grammosacca, sp. nov.; 80, A. (A.) punctuata, sp. nov.; 81, A. (A.) brockeella (Hübner); 82, A. (A.) longalbella, sp. nov.; 83, A. (A.) kaoyaiensis Moriuti, by courtesy of Dr. Zhibo Wang (NKU).

FIGURES 84 – 89. Eighth sternite and male genitalia excluding phallus of Argyresthia spp. 84, A. (Blastotere) aureola, sp. nov., slide no. LTT 12305, holotype; 85, A. (B.) sporadolepis, sp. nov., slide no. LTT 12412, paratype; 86, A. (B.) cineretra, sp. nov., slide no. LTT 12712, paratype; 87, A. (B.) affinicineretra, sp. nov., slide no. LTT 12710, holotype; 88, A. (B.) albaureola, sp. nov., slide no. LTT 12436, holotype; 89, A. (B.) densa, sp. nov., slide no. LTT 12228, holotype. (Scales = 0.2 mm)

FIGURES 141 – 143. Phallus of Argyresthia spp. 141, A. (Blastotere) aureola, sp. nov., slide no. LTT 12305, holotype, 141 a, enlarged view of distal part of cornutus, 141 b, micro-denticles on outer surface of phallus; 142, A. (B.) sporadolepis, sp. nov., slide no. LTT 12412, paratype, 142 a, enlarged view of distal part of cornutus; 143, A. (B.) cineretra, sp. nov., slide no. LTT 12404, paratype, 143 a, enlarged view of distal part of cornutus. (Scales: 141 ̅ 143 = 0.2 mm, 141 a ̅ 143 a, 141 b = 0.1 mm)

FIGURES 197 – 208. Socii of Argyresthia spp. 197, A. (Blastotere) aureola, sp. nov., slide no. LTT 12305, holotype; 198, A. (B.) sporadolepis, sp. nov., slide no. LTT 12412, paratype; 199, A. (B.) cineretra, sp. nov., slide no. LTT 12404, paratype; 200, A. (B.) affinicineretra, sp. nov., slide no. LTT 12710, holotype; 201, A. (B.) albaureola, sp. nov., slide no. LTT 12436, holotype; 202, A. (B.) densa, sp. nov., slide no. LTT 12228, holotype; 203, A. (B.) anthocephala Meyrick, slide no. LTT 12312; 204, A. (B.) dolichocoremata, sp. nov., slide no. LTT 12336, holotype; 205, A. (B.) longipenella, sp. nov., slide no. LTT 12430, holotype; 206, A. (Argyresthia) conjugella Zeller, slide no. LTT 12433; 207, A. (A.) minutilepidota, sp. nov., slide no. LTT 12455, paratype; 208, A. (A.) flavifusca, sp. nov., slide no. LTT 12880, holotype. (Scales = 0.1 mm)

FIGURES 253 – 255. Female genitalia of Argyresthia spp. 253, A. (Blastotere) aureola, sp. nov., slide no. LTT 12304, paratype; 254, A. (B.) sporadolepis, sp. nov., slide no. LTT 12415, paratype; 255, A. (B.) cineretra, sp. nov., slide no. LTT 12416, paratype. (Scales = 0.5 mm)