Argyresthia (Argyresthia) chlorella 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 chlorella

description: 38. Argyresthia (Argyresthia) chlorella, sp. nov. (Figs. 47, 116, 172, 228)
Description. Adult (Fig. 47) wingspan 14.5 mm. Head white. Labial palpus dark gray, yellowish fuscous on inner surface. Antenna with scape white, pecten blackish fuscous; flagellum white, ringed with black. Foreleg with femur blackish gray on inner surface, yellowish white on outer surface, tibia and tarsus blackish fuscous; midleg with femur and tibia blackish gray dorsally, yellowish white ventrally; hindleg with tibia and distal part of each tarsomere bluish gray, remainder yellowish white. Thorax white; tegula dark green, mixed with white. Forewing ratio 4.4; dark green, scattered with white dots and spots: costa with white dot at basal 1/5, group of small white dots at basal 2/5, larger white spot at middle and 7/10 somewhat U-shaped, open on costa margin, large white dot at 9/10, two smaller white dots before apex; cell with white spot at basal 1/10, 1/5, and middle, basal two spots smaller, sometimes fused, middle one sometimes fused with costal dot at middle; four white dorsal spots: one near base smaller and semicircular, one before basal 1/4 triangular, one beyond middle sub-triangular and embracing two dark green dots on dorsum, one at tornus semicircular; small white dot beyond tornus on termen; cilia dark green on costa and around apex, yellowish white adjacent to white spots and dots, yellow on termen, yellowish gray on tornus. Hindwing pale gray, cilia yellowish gray. Abdomen yellowish white dorsally, pale yellow ventrally.
Male genitalia (Figs. 116, 172, 228): Tube analis longer than width of valva. Socius wide in basal 1/3, narrowed in distal 2/3, covered with 23 scale-like setae, bearing a single seta posteriorly (Fig. 228). Gnathos inflated distally, with 16 long thick setae apically. Valva widest at middle, with ventral margin straight in basal half; with a clump of thick setae at center, some of setae slightly brush-like distally. Saccus length equal to width of valva, with distal 2/3 slender. Phallus slightly arched, more sclerotized distally, 4.3 times as long as width of valva (Fig. 172). Second sternite with about six micro-setae in each row; eighth sternite V-shaped. Coremata present.
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. LTT12337.
Distribution. China (Xizang).
Diagnosis. This new species resembles A. (A.) trochaula Meyrick, 1938 in the forewing pattern. It differs from A. (A.) trochaula in having the forewing ground color dark green with a white thorax lacking a longitudinal central streak. In A. (A.) trochaula the forewing ground color is blackish fuscous, and the yellowish white thorax has a longitudinal central black streak. In the male genitalia, the new species differs in the gnathos lacking a long, thick apical seta; whereas the gnathos of A. (A.) trochaula has such a seta.
Etymology. The specific name is derived from the Greek prefix chlor -, meaning green, referring to the dark green ground color of the forewing.
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 49-50, DOI: 10.5281/zenodo.827746