Thecobathra cuneata 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 cuneata

description: Thecobathra cuneata Wang, sp. nov.
(Figs 2, 12, 24)
urn:lsid:zoobank.org:act: 0B8EA6A4-B0E8-442C-9605-2007D6BDD66A
Type material. CHINA, Guangxi: Holotype ♁, Mt. Dayao (24.14°N, 110.08°E), Jinxiu County, 578 m, 25.VII.2022, leg. H Sun et al., slide No. LHY21706.
Paratype: Guangxi: 1♀, same data as holotype except dated 24.VII.2022, slide No. LHY21668.
Diagnosis. The new species can be distinguished from its congeners in the male genitalia by the valva with a wedge-shaped basal plate, and in the female genitalia by the lunate lamella postvaginalis, and the posteriorly Vshaped antrum.
Description. Adult (Fig. 2). Wingspan 15.0‒16.0 mm.
Head white, frons with appressed scales. Antenna white; flagellum ringed with yellowish brown dorsally. Labial palpus white, except third palpomere yellowish brown ventrally.
Thorax and tegula white. Forewing white, with scattered dark brown scales; costal margin dark brown in basal 1/4, with a brown dot medially, with a short, dark brown band along distal 1/4; fold with a brown dot at middle; fringe white. Hindwing and fringe white. Legs white; tarsus dark brown at apex of each tarsomere; tibia of hindleg with a black dot at either side terminally.
Male genitalia (Fig. 12). Uncus subtriangular. Socius with basal 3/4 subparallel-sided, narrowed from distal 1/4 to apex, with an apical thorn. Subscaphium narrow, parallel-sided. Ventral plate of gnathos small, slightly widened, sclerotized on anterior margin. Valva narrowed from near base to obtused apex, obtusely produced near base on ventral margin; dorsoproximal process large, subquadrate; inner process small, triangular, with ridge extending from its outer corner of base to middle of costa; basal plate wedge-shaped, gradually narrowed, extending from base of valva to basal 1/4 above ventral margin; costa band-shaped, concave medially, narrowed distally. Sacculus indistinct. Saccus broadly V-shaped posteriorly, slightly narrowed to rounded apex. Aedeagus about 1.7 times length of saccus, with a row of teeth along distal 3/4.
Female genitalia (Fig. 24). Papillae anales long and narrow, with long setae. Apophyses anteriores about 1/2 length of apophyses posteriors. Ventral arms of apophyses anteriores connected with lamella postvaginalis. Lamella postvaginalis lunate, with long setae. Antrum about 1/4 length of ductus bursae, V-shaped posteriorly. Ductus bursae 1.2 times length of corpus bursae, parallel-sided, posterior 1/3 weakly sclerotized in part. Corpus bursae rounded; signum gradually narrowed to middle length, anterior half almost uniformly slender, lateral flange horn-shaped.
Distribution. China (Guangxi).
Etymology. The specific epithet is derived from the Latin cuneatus, referring to the wedge-shaped basal plate of the valva.
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 pages 488-489, DOI: 10.11646/zootaxa.5325.4.2, http://zenodo.org/record/8243618