Nemophora jiajinshana Liao, Hirowatari & Huang, 2023

Liao, Cheng-Qing, Hirowatari, Toshiya, Yagi, Sadahisa, Wang, Min, Wang, Xing & Huang, Guo-Hua, 2023, The fauna of the family Adelidae (Insecta, Lepidoptera, Adeloidea) from China, Zootaxa 5348 (1), pp. 1-152 : 63-64

(72) Nemophora jiajinshana Liao, Hirowatari & Huang , sp. nov.

(Plates VII-6, XVIII-4, XXVIII-3)

LSID urn:lsid:zoobank.org:act:30D6A456-D943-4F3D-BF49-931C03CFFBFA

Diagnosis. This species can be easily distinguished by the following characters: the small size with 17.6 mm wing expanse; the subapical area with 7 black radial striae reaching the outer margin; the abdomen is dark brown to black, ventral surface with yellow scales on each abdominal posterior margin; and the vinculum is very short, about 2.4 × as long as valva, and the middle part with an irregular near oval transparent window.

Description. Male. Forewing 8.2–8.4 mm; wing expanse about 17.6 mm.

Vertex covered with yellow hairs mixed with gray white; face with smooth yellow scales. Eyes very small, far away to each other dorsally; eye size index about 0.42. Labial palpus short, covered with yellow scales and brown hairs; galeae with yellow scales laterally. Antenna slender, 27.0– 28.8 mm, about 3.4 × forewing length; basal part black, apical 1/3 slightly light color. Legs yellow except foreleg yellowish to blackish; hind tibiae with yellow long hairs. Thoracic dorsum and tegula borwn, with metallic gold luster. Forewing lanceolate, ground color pale yellow in basal 2/3 and yellow in apical 1/3; basal 2/3 with three broad black longitudinal striae and three narrow black lines both reaching to central fascia; middle part with two black-margined silver-gray transverse fasciae separated a yellow transverse broad band; subapical area with 7 black radial striae reaching to outer margin; cilia dark brown to black; vein R 3 stalked with R 4 at basal 2/5. Hindwing and cilia dark brown to black; Rs stalked with M 1 at middle. Abdomen dark brown to black, ventral surface with yellow scales on each abdominal posterior margin.

Female. Forewing about 6.4 mm, wing expanse about 14.0 mm. Eyes small, eye size index ca. 0.5. Antenna short, more than 8.1 mm; basal 2/3 black, stout, apical 1/3 slender, alternating black and white rings. Others similar to male.

Male genitalia. Uncus triangular, with distinct median keel. Vinculum very short, about 2.4 × as long as valva; middle part with an irregular near oval transparent window; posterior margin slightly arcuate. Valva near trapezoid, with broad blunt apex; inner margins distinct arcuate, lateral margins slightly concaved; sacculus slightly expanding at basal 1/3, basal part fused medially; suspensorium nearly trapezoid, anterior part slightly beyond posterior margin of vinculum in ventral view. Transtilla wide laterally and narrow medially; median process long and pointed, with slightly curved anterior margin. Aedeagus very slender; apical 1/3 curved dorsally; apical portion with a thin and long lobe; vesica with a patch of microtrichia dorsolaterally. Juxta arrow-shaped; arrow-head long and blunt, lateral arms long and narrow.

Holotype. [Sichuan] ♁, Jiajinshan (2,600 m), Baoxing County, Ya’an City, 2018.VIII.13–15, J.Y. Qiu & H. Xu leg. ( HUNAU).

Paratypes. [Sichuan] 2♀, same data as holotype ( HUNAU) .

Etymology. The specific epithet refers to the type locality, Mt. Jiajinshan.

Distribution. China (Sichuan).

Remarks. This species is endemic to Mt. Jiajinshan, Sichuan Province, China and occurs in August.

DNA barcodes of two N. jiajinshana sp. nov. specimens are generated, and their sequences show no differences. This species is closest to N. sakaii (pairwise distances: 0.057 –0.060).