Argyresthia (Blastotere) dolichocoremata, 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 : 22-23

10. Argyresthia (Blastotere) dolichocoremata , sp. nov. ( Figs. 21 , 91 , 148 , 204 )

Description. Adult ( Fig. 21 ) 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 , 148 , 204 ): Tuba analis shorter than width of valva. Socius covered with 23 scale-like setae, bearing a single long seta posteriorly ( Fig. 204 ). 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 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.

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.

Figures

FIGURES 20 – 27. Adults of Argyresthia spp. 20, A. (Blastotere) punctireticulata, sp. nov., ♀, paratype; 21, A. (B.) dolichocoremata, sp. nov., ♂, holotype; 22, A. (B.) longipenella, sp. nov., ♂, holotype; 23, A. (Argyresthia) conjugella Zeller, ♀; 24, A. (A.) biloba, sp. nov., ♀, holotype; 25, A. (A.) minutilepidota, sp. nov., ♂, holotype; 26, A. (A.) flavifusca, sp. nov., ♂, holotype; 27, A. (A.) flavifusca, sp. nov., ♀, paratype. (Scales = 2.0 mm)

FIGURES 90 – 95. Eighth sternite and male genitalia excluding phallus of Argyresthia spp. 90, A. (Blastotere) anthocephala Meyrick, slide no. LTT 12312; 91, A. (B.) dolichocoremata, sp. nov., slide no. LTT 12336, holotype; 92, A. (B.) longipenella, sp. nov., slide no. LTT 12430, holotype; 93, A. (A.) conjugella Zeller, slide no. LTT 12433; 94, A. (A.) conjugella Zeller, slide no. LTT 12768; 95, A. (A.) minutilepidota, sp. nov., slide no. LTT 12455, paratype. (Scales = 0.2 mm)

FIGURES 147 – 149. Phallus of Argyresthia spp. 147, A. (Blastotere) anthocephala Meyrick, slide no. LTT 12312, 147 a, enlarged view of distal part of cornutus; 148, A. (B.) dolichocoremata, sp. nov., slide no. LTT 12336, holotype; 149, A. (B.) longipenella, sp. nov., slide no. LTT 12430, holotype, 149 a, enlarged view of distal part of cornutus. (Scales: 147 ̅ 149 = 0.2 mm; 147 a, 149 a = 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)