Argyresthia (Argyresthia) papillata, 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 : 35-36

21. Argyresthia (Argyresthia) papillata , sp. nov. ( Figs. 31 , 100 , 156 , 212 )

Description. Adult ( Fig. 31 ) wingspan 11.5 mm. Head white. Labial palpus white dorsally, pale yellow ventrally. Antenna with scape white, pecten brownish fuscous; flagellum white, ringed with blackish gray. Foreleg with femur gray on inner surface, tibia and first tarsomere of tarsus blackish fuscous on inner surface, other tarsomeres black distally, remainder white; midleg mostly pale yellowish white, tarsus gray on distal part of each tarsomere; hindleg mostly grayish white, tibia and first tarsomere blackish gray on outer surface, other tarsomeres blackish gray on outer surface distally. Thorax white, tinged with pale yellow; tegula golden fuscous to dark fuscous. Forewing ratio 4.3; grayish fuscous; costa with several transverse black striae on basal 3/5, with a white spot at distal 1/10; blackish-gray streak below basal half of fold; dorsal band pale yellowish white, from base to middle of dorsum, elongate rectangular, straight apically; dorsal spot black, situated beyond end of dorsal band, extending to fold anteriorly; black dot at tornus and a white spot above it; termen with a few black dots; cilia white adjacent to costal spots, black around apex, dark gray near tornus. Hindwing and cilia uniformly gray.

Male genitalia ( Figs. 100 , 156 , 212 ): Tuba analis slightly shorter than width of valva. Socius covered with 9̄10 scale-like setae, with a small posterior papilla that bears one to two setae ( Fig. 212 ). Gnathos inflated distally, with 7̄13 long thick setae apically. Valva with basal 2/5 uniform in width, distal 3/5 narrowed, rounded apically; with a row of long thick setae from base near ventral margin to distal area. Saccus shorter than width of valva, distal half linear. Phallus straight, 4.2 times as long as width of valva ( Fig. 156 ). Second sternite with 8̄11 microsetae in each row; eighth sternite V-shaped. Coremata present.

Female unknown.

Type material. CHINA: Holotype, Ƌ, Mt. Wuling (40.61°N, 117.45°E), Xinglong County, Hebei Province, 800 m, 21.viii.2009, leg. Aihuan Zhang and Xueling Tian, slide no . LTT12815. Paratypes: Hebei Province: 1Ƌ, same data as holotype, slide no . LTT12793Ƌ. Inner Mongolia Autonomous Region: 1Ƌ, Nantianmen (40.44°N, 112.00°E), Helingeer County, Huhehaote City , 1400 m, 13.viii.2007, leg. Houhun Li and A. Bidzilya, slide nos . LTT12811, LTT12811W; 1♂, Mt. Dongmotianling (40.43°N, 112.10°E), Heilaoyao, Huhehaote City , 1480 m, 12.viii.2007, leg. Houhun Li and A. Bidzilya, slide no . LTT12120. Shanxi Province: 1Ƌ, Mt. Lingkong (36.61°N, 112.08°E), Qinyuan County, 1560 m, 27.vii.2014, leg. Tengteng Liu, Meiqing Yang and Sihan Lu, slide no . LTT12736.

Distribution. China (Hebei, Inner Mongolia, Shanxi).

Diagnosis. This species resembles A. (A.) trigonophylla , sp. nov., superficially. It can be separated by the forewing with the white dorsal band extending from the base to the middle of the dorsum; the socius with a small papilla posteriorly; and the phallus 4.2 times the length of the valva in the male genitalia. In A. (A.) trigonophylla , sp. nov., the dorsal band on the forewing extends to above tornus; the socius is triangularly protruded posteriorly; and the phallus is 5.6̄6.4 times the length of the valva in the male genitalia.

Etymology. The specific name is derived from the Latin papillatus, meaning papillary, referring to the small papilla of the socius.

Figures

FIGURES 28 – 35. Adults of Argyresthia spp. 28, A. (Argyresthia) trigonophylla, sp. nov., ♂, holotype; 29, A. (A.) chiotorna, sp. nov., ♂, paratype; 30, A. (A.) hirsuta, sp. nov., ♂, holotype; 31, A. (A.) papillata, sp. nov., ♂, paratype; 32, A. (A.) acuminata, sp. nov., ♂, holotype; 33, A. (A.) curvativa, sp. nov., ♂, holotype; 34, A. (A.) atomata, sp. nov., ♂, holotype; 35, A. (A.) orthocera, sp. nov., ♂, holotype. (Scales = 2.0 mm)

FIGURES 96 – 101. Eighth sternite and male genitalia excluding phallus of Argyresthia spp. 96, A. (Argyresthia) flavifusca, sp. nov., slide no. LTT 12880, holotype; 97, A. (A.) trigonophylla, sp. nov., slide no. LTT 12816, paratype; 98, A. (A.) chiotorna, sp. nov., slide no. LTT 12471, holotype; 99, A. (A.) hirsuta, sp. nov., slide no. LTT 12841, holotype; 100, A. (A.) papillata, sp. nov., slide no. LTT 12815, holotype; 101, A. (A.) acuminata, sp. nov., slide no. LTT 12740, holotype. (Scales = 0.2 mm)

FIGURES 154 – 157. Phallus of Argyresthia spp. 154, A. (Argyresthia) chiotorna, sp. nov., slide no. LTT 12471, holotype; 155, A. (A.) hirsuta, sp. nov., slide no. LTT 12841, holotype; 156, A. (A.) papillata, sp. nov., slide no. LTT 12815, holotype; 157, A. (A.) acuminata, sp. nov., slide no. LTT 12740, holotype. (Scales = 0.2 mm)

FIGURES 209 – 220. Socii of Argyresthia spp. 209, A. (Argyresthia) trigonophylla, sp. nov., slide no. LTT 12816, paratype; 210, A. (A.) chiotorna, sp. nov., slide no. LTT 12757, paratype; 211, A. (A.) hirsuta, sp. nov., slide no. LTT 12841, holotype; 212, A. (A.) papillata, sp. nov., slide no. LTT 12815, holotype; 213, A. (A.) acuminata, sp. nov., slide no. LTT 12740, holotype; 214, A. (A.) curvativa, sp. nov., slide no. LTT 12853, holotype; 215, A. (A.) atomata, sp. nov., slide no. LTT 12804, holotype; 216, A. (A.) orthocera, sp. nov., slide no. LTT 12774, holotype; 217, A. (A.) cardiopetala, sp. nov., slide no. LTT 12432, paratype; 218, A. (A.) mala, sp. nov., slide no. LTT 12784, paratype; 219, A. (A.) longa, sp. nov., slide no. LTT 12493, holotype; 220, A. (A.) decurtata, sp. nov., slide no. LTT 12842, holotype. (Scales = 0.1 mm)