Nemophora latilobula 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 : 51-52

(52) Nemophora latilobula Liao, Hirowatari & Huang , sp. nov.

(Plates VI-5, XVII-2, XXV-3)

LSID urn:lsid:zoobank.org:act:3A4611D3-6CCF-4E85-93D3-4E3D2CC3599D

Diagnosis. This species is relatively small in body size, and the forewing length is about 3.7 × as width. There is a black longitudinal stria at forewing base near costal margin, and most of subapical area is yellow. The male eyes of this species are much less than those of N. fluorites and N. tanakai , with an eye size index of only approximately 0.53. The most dominant characteristics of the species are the valva of male genitalia which are broad with rounded apex; the vinculum is gradually narrow to the tip; the aedeagus is slender and straight; and jthe uxta has a slender arrow-head.

Description. Male. Forewing 8.7–8.9 mm; wing expanse about 18.7 mm.

Head covered with raised yellow hairs; face with light yellow smooth scales, with metallic blue luster. Eyes small, widely separated dorsally; eye size index 0.53. Labial palpus moderate in length, ca. 1.5 × vertical eye diameter, covered with smooth yellow scales except dark brown apically; second segment sparsely with long black hairs ventrally. Galeae long, covered with yellow and brown scales laterally. Antenna about 2.7 × forewing length, smooth, mostly light brown with black basally. Thorax yellow to brown with metallic golden luster. Legs yellow to brown with purple luster; fore-femur, apical fore-tibia and all distal tarsi dark brown to black; hind-tibia yellow with long hairs. Forewing lanceolate, distinctly narrow, length about 3.7 times of width; ground color yellow, basal half with one subdorsal longitudinal, black-margined leaden fascia; costal margin mixed with dark brown to black scales; a pair of black-margined leaden transverse fascia approximated at middle, but not dividing yellow band between the fascia; apical margin mainly yellow mixed with a small amount of black scales; cilia black; vein R 3 stalked with R 4 at basal 2/5. Hindwing dark brown, apical part black; cilia light brown to dark brown; vein Rs stalked with M 1 at middle. Abdomen dark brown to black with black long hairs in genital segments.

Female. Forewing 7.3–7.6 mm, wing expanse about 16.0 mm. Head: with raised yellow hairs; face with smooth yellow scales. Eyes small, eye size index ca. 0.6; eye size index ca. 0.6. Antenna short, 8.2–8.7 mm; basal 2/3 with rough black scales, basally tinged with blue luster; apical 1/3 brown and smooth. Thorax: black dorsally and yellow laterally. Forewing: shorter and broader than male, length 3 times of width; color pattern very similar with male.

Male genitalia. Uncus pointed with a weak median keel. Vinculum very long and slender, about 3.2 × as long as valva. Valva nearly triangular, rounded and blunt apically; sacculus basally flattened with dense hairs; suspensorium triangular, anterior part far beyond posterior margin of vinculum in ventral view. Transtilla wide in median and lateral parts; median process moderate, pointed. Aedeagus long and slender, nearly straight, approximately as long as vinculum; manica with a pair of long narrow lamellae dorsally and a patch of minute spines apically. Juxta arrow-shaped; arrow-head and lateral arms very long and narrow, pointed.

Female genitalia. Ovipositor pointed, with a barb ventroposteriorly. Apophyses posteriores and anteriores long and slender, subequal in length. Vestibulum narrow, membranous; a pair of vestibular lamellae small, sclerotized. Bursa copulatrix short and narrow, membranous.

Holotype. [Sichuan] ♁, Yajiageng (2,100 m), Moxi Town , Luding County, Ganzi Tibetan Autonomous Prefecture, 2005.VI.18, G.H. Huang, L.S. Chen & J.X. Liu leg. ( HUNAU).

Paratypes. [Sichuan] 1♁ same data as holotype; 3♁ 2♀, Hongshi Park, Gonggashan National Nature Reserve , Luding County, Ganzi Tibetan Autonomous Prefecture, 2016.VI.23, J.Y. Qiu & H. Xu leg.; 1♀, Nibashan, Yingjing County , Ya’an City, 2009.VII.28, G.H. Huang leg. ( HUNAU) .

Etymology. The specific epithet is derived from the Latin words lati (broad) and lobula (lobe), referring to the distinctly broad valva in the male genitalia.

Distribution. China (Sichuan).

Remarks. This species is endemic to Sichuan, China, and may has a narrow distribution.