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

10. Argyresthia ( Blastotere) dolichocoremata , sp. nov. ( Figs. 21 View FIGURES 20 – 27 , 91 View FIGURES 90 – 95 , 148 View FIGURES 147 – 149 , 204 View FIGURES 197 – 208 )

Description. Adult ( Fig. 21 View FIGURES 20 – 27 ) wingspan 14.0 mm. Head pale yellow. Labial palpus yellowish fuscous, mixed with dark fuscous on second segment laterally. Antenna with scape yellowish fuscous, pecten fuscous; flagellum grayish white, ringed with dark gray. Foreleg blackish fuscous on inner surface, yellow mixed with gray on outer surface; mid- and hindlegs yellowish white, hindleg with tibia and tarsus gray on outer surface. Thorax and tegula yellowish fuscous. Forewing ratio 4.3; ground color yellowish fuscous, darker towards base; two straight longitudinal dark fuscous streaks: one from basal 3/7 of cell to apex, second from near base of fold to before end of fold; cilia dark fuscous along costa and apex, grayish white mixed with dark fuscous basally on termen. Hindwing and cilia uniformly grayish white.

Venation: Forewing with R1 from basal 2/5 of upper margin of cell, R4 and R5 stalked; hindwing with M3 and CuA1 stalked.

Male genitalia ( Figs. 91 View FIGURES 90 – 95 , 148 View FIGURES 147 – 149 , 204 View FIGURES 197 – 208 ): Tuba analis shorter than width of valva. Socius covered with 23 scale-like setae, bearing a single long seta posteriorly ( Fig. 204 View FIGURES 197 – 208 ). Valva oval, widest at middle. Saccus triangular, truncate apically. Phallus nearly straight, 3.0 times as long as width of valva; cornutus about 1/2 length of phallus, with a single pointed strong denticle ( Figs. 148, 148 View FIGURES 147 – 149 a). Second sternite with about ten micro-setae in each row; eighth sternite Y-shaped. Coremata extremely long, about 2/5 length of abdomen.

Female unknown.

Type material. CHINA: Holotype, Ƌ, Milin County ( 29.22°N, 94.22°E), Xizang Autonomous Region, 2980 m, 31.vii.2010, leg. Houhun Li et al., slide no. LTT12336. GoogleMaps

Distribution. China ( Xizang).

Diagnosis. This new species resembles A. ( B.) ornatipennella Moriuti, 1974 and A. ( B.) nemorivaga Moriuti, 1969 in forewing pattern. It can be distinguished by its pale yellow head, the straight streak from the basal 3/7 of the cell to the apex in the forewing, and the cornutus with a single strong denticle in the male genitalia. In A. ( B.) ornatipennella and A. ( B.) nemorivaga the head is white and the forewing lacks a straight streak from the base of the cell to the apex; in the male genitalia the cornutus of A. ( B.) ornatipennella has many spines distally, and the cornutus of A. ( B.) nemorivaga has five strong denticles.

Etymology. The specific name is derived from the Greek prefixes dolich -, meaning long, and the Greek originated term coremata, indicating the extremely long coremata.