Argyresthia (Blastotere) longipenella Liu, Wang & Li, 2017, sp. nov.
Creators: name: Liu, Tengteng
name: Wang, Shuxia
name: Li, Houhun
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Yponomeutidae
Argyresthia
Argyresthia longipenella

description: 13. Argyresthia (Blastotere) longipenella, sp. nov. (Figs. 22, 92, 149, 205)
Description. Adult (Fig. 22) wingspan 9.5 mm. Head with vertex white, face yellow. Labial palpus pale yellow. Antenna with scape white, pecten yellowish fuscous; flagellum white, ringed with blackish gray. Foreleg blackish fuscous on inner surface, yellow mixed with gray on outer surface; mid- and hindleg mostly pale yellow, midleg having four blackish-gray dots on tibia dorsally, blackish gray on distal part of each tarsomere, hindleg gray on outer surface of tibia, gray distally on each tarsomere of tarsus. Thorax white; tegula golden fuscous. Forewing ratio 4.0; pale greenish fuscous, with white dots along costa and at apex; dorsum with a white streak along basal 1/ 3; large white dorsal spot from beyond basal 3/10 and beyond middle of wing extending to midwing, becoming grayish fuscous from middle towards costa; well-defined, broad, deep greenish-fuscous dorsal fascia from between two white spots extending obliquely outward to costa; well-defined, deep greenish-fuscous fascia from tornus extending straight to end of cell, then curved outwards to costa before apex; cilia greenish fuscous along costa and apex, grayish green to grayish white near tornus. Hindwing and cilia uniformly gray.
Venation: Forewing with R1 from basal 1/5 of upper margin of cell, R4 and R5 separate; hindwing with M3 and CuA1 stalked.
Male genitalia (Figs. 92, 149, 205): Tuba analis shorter than width of valva. Socius covered with 17 scale-like setae, bearing a single long seta posteriorly (Fig. 205). Valva widest at base, slightly narrowed towards rounded apex. Saccus triangular, truncate apically. Phallus straight, 6.0 times as long as width of valva; cornutus about 1/5 length of phallus, with many heavily sclerotized spines distally (Figs. 149, 149 a). Second sternite with about seven micro-setae in each row; eighth sternite Y-shaped. Coremata extremely long, about 1/2 length of abdomen.
Female unknown.
Type material. CHINA: Holotype, Ƌ, Mt. Fengyang (28.08°N, 119.13°E), Longquan County, Lishui City, Zhejiang Province, 1470 m, 25.vii.2007, leg. Qing Jin, slide no. LTT12430.
Distribution. China (Zhejiang).
Diagnosis. This species is superficially similar to A. (B.) chamaecypariae Moriuti, 1969, but it can be distinguished by features of the male genitalia. In the new species, the phallus is 6.0 times as long as the width of the valva and lacks the micro-denticles on the outer surface distally, and the saccus is truncate distally. In A. (B.) chamaecypariae the phallus is 3.3 times as long as the width of the valva and bears a row of micro-denticles on the outer surface distally, and the saccus is rounded distally. The holotype of A. (B.) chalcocausta is a female collected from Mt. Tianmu, Zhejiang Province, but its forewing pattern is distinct (Clarke 1965). Argyresthia (B.) idiograpta is also from Mt. Tianmu, but the female holotype lacks an abdomen (Clarke 1965). According to the original description (Meyrick 1935), A. (B.) idiograpta has veins R4 and R5 stalked, the patterns are dark fuscous, the tornal streak is crossed with the streak on the dorsum before the middle of the wing at costal 3/5. In contrast, the new species has veins R4 and R5 separate, the patterns are deep greenish fuscous, and the tornal streak is separate from other streaks.
Etymology. The specific name is derived from the Latin longus, meaning long, and penis, meaning phallus, indicating the long phallus in the male genitalia.
description: Published as part of 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, pp. 1-135 in Zootaxa 4292 (1) on pages 23-24, DOI: 10.5281/zenodo.827746