Thecobathra pectinacea Liu & Wang 2023, sp. nov.
Creators: name: Liu, Haoyu
name: Wang, Shuxia
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Yponomeutidae
Thecobathra
Thecobathra pectinacea

description: Thecobathra pectinacea Wang, sp. nov.
(Figs 9, 20, 31)
urn:lsid:zoobank.org:act: A9E4D770-3003-4471-ACF4-5BD72DBFE9F9
Type material. CHINA, Xizang: Holotype ♁, Zhangmu Town (27.98°N, 85.97°E), Nielamu County, 1961 m, 7.VII.2019, leg. MJ Qi & JQ Deng, slide No. LHY21060.
Paratypes: Xizang: 1♀, same data as holotype except dated 8.VII.2019, slide No. LHY21092; 1♁, Jilong Town (28.39°N, 85.34°E), Jilong County, 2812 m, 12.VII.2019, leg. MJ Qi & JQ Deng, slide No. LHY21061.
Diagnosis. The new species can be distinguished from its congeners in the male genitalia by the socius with a row of 19‒21 combteeth distally, the ventral plate of the gnathos slightly concave at middle on the anterior margin, and the conical juxta.
Description. Adult (Fig. 9). Wingspan 16.0‒20.0 mm.
Head white. Antenna white; flagellum ringed with yellow dorsally. Labial palpus white, mottled with brown scales, except second palpomere yellowish brown on outer surface.
Thorax and tegula white. Forewing white; costal margin with basal 1/4 dark brown, distal 1/3 yellowish brown; dorsum tinged with yellowish brown medially; fringe yellowish brown along distal part of costal margin and dorsum, white along termen. Hindwing pale grey, mixed with greyish brown distally; fringe white. Legs white; tarsi yellow; foreleg dark brown on ventral surface.
Male genitalia (Fig. 20). Uncus triangularly produced. Socius narrow basally, widened from basal 1/5 to 2/5, distal 3/5 slightly narrowed to obtusely rounded apex; 19‒21 combteeth lined from distal 3/5 to apex. Subscaphium widened anteriorly. Ventral plate of gnathos subrectangular, wider than long, slightly concave and heavily sclerotized laterally, concave at middle on anterior margin, with a flap in anterior 3/5. Valva widened from base to obtuse apex; proximal process semicircular, produced ventrally; inner process narrow, triangular; costa band-shaped, weakly sclerotized. Sacculus 1/2 length of valva, with a large triangular process near base. Juxta conical, extending to anterior margin of uncus. Saccus narrowed from base to posterior 2/5, parallel-sided from posterior 2/5 to anterior 1/6, then narrowed to obtuse apex. Aedeagus 2 times length of saccus, with two rows of teeth along distal 1/5.
Female genitalia (Fig. 31). Papillae anales broad, semicircular, with long setae. Apophyses posteriores 2 times length of apophyses anteriores. Ventral arms of apophyses anteriores connected with lamella postvaginalis. Lamella postvaginalis deeply concave at middle on posterior margin, forming two triangular posterior lobes.Antrum indistinct. Ductus bursae heavily sclerotized except membranous near corpus bursae, posterior half parallel-sided, anterior half slightly widened. Corpus bursae membranous, oviform; signum irregular, lateral flange large, spine-shaped.
Distribution. China (Xizang).
Etymology. The specific epithet is derived from the Latin pectinaceus, referring to the combteeth along distal 3/5 of the socius.
description: Published as part of Liu, Haoyu & Wang, Shuxia, 2023, Taxonomic study of the genus Thecobathra Meyrick (Lepidoptera: Yponomeutidae) in China, with descriptions of eight new species, pp. 483-508 in Zootaxa 5325 (4) on page 500, DOI: 10.11646/zootaxa.5325.4.2, http://zenodo.org/record/8243618