Argyresthia (Argyresthia) punctuata 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 punctuata

description: 36. Argyresthia (Argyresthia) punctuata, sp. nov. (Figs. 4, 45, 80, 114, 170, 226, 274)
Description. Adult (Figs. 45, 80) wingspan 10.0̄12.0 mm. Head with vertex white, face pale brownish white. Labial palpus pale brownish yellow, mixed with gray laterally. Antenna with scape white, tinged with fuscous distally, pecten pale fuscous; flagellum pale grayish white, ringed with black. Legs mostly pale yellowish fuscous; foreleg with femur gray on inner surface, tibia and tarsus blackish gray on inner surface; midleg with distal end of tibia tinged with yellowish fuscous; hindleg with tarsus blackish gray on outer surface. Thorax white, mesothorax with a black dot at posterior end; tegula white, anterior margin golden fuscous. Forewing ratio 3.7; ground color gray on costal 1/3, grayish white on dorsal 2/3, densely covered with transverse gray striae or dots becoming sparser towards base; costa with several transverse black striae, black spot beyond middle largest, two closely approximated yellowish-white spots near apex; termen interspersed with black and white dots; one or two transverse black striae below basal 1/3 of fold; dorsal spot black, subrectangular, from middle of wing slightly outwards, reaching lower margin of cell; cilia blackish gray, gray on termen. Hindwing and cilia uniformly gray. Abdomen brownish yellow dorsally, silvery gray ventrally.
Venation (Fig. 4): Forewing with R1 originating from middle of upper margin of cell.
Male genitalia (Figs. 114, 170, 226): Tuba analis shorter than width of valva. Socius covered with 18 scalelike setae, bearing two short setae posteriorly (Fig. 226). Gnathos not inflated distally, without long thick setae apically. Valva nearly round, sparsely covered with a clump of long setae in disc. Saccus short, triangular. Phallus nearly straight, 2.8 times as long as width of valva (Fig. 170). Second sternite with 7̄8 micro-setae in each row; eighth sternite V-shaped. Coremata present.
Female genitalia (Fig. 274): Ovipositor 2.6 times as long as eighth segment. Anterior apophysis 2/3 length of posterior apophysis, bufurcate before middle, with branch extending to lamella postvaginalis. Ostium bursae membranous. Lamella postvaginalis inverted V-shaped. Antrum tubular, parallel-sided, 5/6 length of eighth segment; ductus seminalis originating from posterior 2/5 of ductus bursae. Corpus bursae oval, with dense microdenticles; signum with basal plate triangular, horns uniformly slender, extending obliquely outward, broad Vshaped.
Type material. CHINA: Holotype, Ƌ, Mt. Mian (36.87°N, 111.99°E), Jiexiu County, Shanxi Province, 1370 m, 15.vii.2014, leg. Tengteng Liu, Meiqing Yang and Sihan Lu, slide no. LTT12534Ƌ. Paratypes: 6Ƌ, 16♀, same data as holotype, 15̄ 20.vii.2014, slide nos. LTT12535♀, LTT12536W; 1♂, Mt. Wuling (40.63°N, 117.43°E), Xinglong County, Hebei Province, 1000 m, 17.vi.2014, leg. Shurong Liu et al., slide no. LTT12541; 1♀, Mt. Baiyun (33.68°N, 111.85°E), Song County, Henan Province, 1580 m, 18.vii.2002, leg. Xinpu Wang, slide no. LTT12448.
Other material: 1♀ (without abdomen), same data as holotype, except 19.vii.2014.
Distribution. China (Hebei, Henan, Shanxi).
Diagnosis. This new species is closest to A (A.) magna Moriuti, 1969. It can be separated by the forewing with the ground color gray on costal 1/3 and grayish white on dorsal 2/3; the male genitalia with the socius bearing two setae posteriorly; and the female genitalia with the tubular antrum parallel-sided and the corpus bursae with dense micro-denticles. In A (A.) magna the forewing ground color is testaceous and almost entirely suffused with yellowish white on dorsal half; the socius bears three setae posteriorly in the male genitalia; and the antrum is narrowed basally and inflated distally and the corpus bursae lacks micro-denticles in the female genitalia.
Etymology. The specific name is derived from the Latin punctuatus, meaning with dot, referring to the black dot at the posterior end of the mesothorax.
Remarks. Vein R1 of the forewing originates from the middle of the upper margin of the cell, which resembles members of the subgenus Blastotere. But the following genital features fit the subgenus Argyresthia: male genitalia with a clump of long setae in disc in the valva and phallus without strong denticles in the cornutus.
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 48-49, DOI: 10.5281/zenodo.827746