Stathmopoda liberata Wang & Guan & Wang 2020, sp. nov.

Stathmopoda liberata sp. nov. (Figs 11, 24, 36) Type material. CHINA, Guizhou: Holotype ♂, Kuankuoshui, Suiyang County, 15.VIII.2010, leg. LL Yang, slide No. GW 12221. Paratype: 1♀, Qianjiangyuan, Mt. Tiamu, Zhejiang, 866 m, 13.VIII.2014, leg. AH Yin et al., slide No. GW 14168. Diagnosis. The new species can be distinguished from other species by the forewing with slender ochreous brown streaks along anterior and posterior margins of cell; in the male genitalia by the sacculus with two tooth-like apical lobes; in the female genitalia by the region of the transition between the corpus bursae and the ductus bursae with two rows of sparse denticles arranged in V-shape, and the ductus seminalis arising from the right side of the corpus bursae medially. Description. Adult (Fig. 11). Wingspan 19.0– 19.5 mm. Head with frons white; vertex brown mixed with dark brown; occiput dark brown. Labial palpus yellowish white, second segment with slender brown line on outer side; third segment with slender brown line on ventral surface. Antenna with scape pale brown, brown on posterior margin; flagellum yellowish white. Collar ochreous brown; thorax and tegula pale brown, with scattered dark brown scales. Forewing pale brown, with irregular blackish brown patch at base; costal margin with a dark brown streak, gradually narrowed and paler from base to apex; fold blackish brown, forming a dark line; ventral margin with a blackish brown stripe from basal 1/8 extending obliquely outward to basal 2/5 of fold; cell with slender ochreous brown streaks along anterior and posterior margins, joined and forming a large ochreous brown spot at outer margin of cell; slender ochreous brown streak from outer margin of preceding spot extending straightly to before apex; fringe brown. Hindwing and fringe greyish brown. Legs dominantly yellowish white; except foreleg with femur and tibia blackish brown on outer side, tibia with yellowish white bristles at middle and apex, tarsus blackish brown at apices of first and fifth tarsomeres; mid tibia blackish brown in basal half on dorsal surface, bearing long blackish brown hairs at middle, with white bristles at apex, tarsus blackish brown at apex; hind tibia ringed with long blackish brown bristles at basal 1/3, 2/3 and apex respectively, with long blackish brown hairs on ventral surface, tarsus annulated with blackish brown at apex of each tarsomere, ringed with blackish brown bristles at apices of basal three tarsomeres, mixed with ochreous brown. Abdomen dark brown on dorsal surface, ochreous grey on ventral surface. Male genitalia (Fig. 24). Uncus wide at base, gradually narrowed to apex, with long setae laterally. Gnathos wide near base, gradually narrowed to apex. Tegumen bifurcate from middle; lateral arm almost uniform, with a process at basal 1/3 on inner margin. Valva subequally narrow from base to before cucullus; cucullus sub-elliptical, length approximately 1.8 times of maximum width, strongly convex at basal 1/3 on dorsal margin, obliquely obtuse from basal 1/3 to apex, obtuse on ventral margin; inner process spine-shaped; costa slightly produced; sacculus widely banded, more sclerotized on ventral margin, bilobed apically: dorsal lobe small, tooth-like, ventral lobe triangular, pointed at apex, free from cucullus. Saccus short triangular, approximately 1/4 length of uncus. Juxta V-shaped, deeply concave posteromedially; anellar lobes elongate oval (in aedeagus). Aedeagus approximately 2/3 length of valva, basal 2/3 almost uniformly wide, distal 1/3 tapered to apex, with sclerotized plate at base, with a group of differently sized denticles, fused with large denticles, ranging from basal 1/4 to 3/4 ventrally; cornutus consisting of five large denticles joined at base, located at basal 1/3 dorsally (Fig. 24a). Female genitalia (Fig. 36). Intersegmental membrane between papillae anales and eighth abdominal segment approximately 2.7 times length of papillae anales.Apophyses posteriores approximately 1.5 times length of apophyses anteriores. Eighth segment straight on posterior margin, with long setae; eighth tergite concave in V-shape anteromedially; eighth stenite sub-rectangular, broadly rounded on anterior margin. Antrum sub-rectangular, anterior margin heavily sclerotized, with a triangular process anteromedially. Ductus bursae approximately 3/4 length of corpus bursae, basal half almost uniform, distal half gradually widened. Corpus bursae oval; signum sub-elliptical, length approximately 2/5 width of corpus bursae, placed posteriorly (Fig. 36a); two rows of large denticles at transition between ductus bursae and corpus bursae, arranged in V-shape. Ductus seminalis arising from right side of corpus bursae medially, approximately 2/3 length of corpus bursae, broadly tubular, with dense granules distally. Distribution. China (Guizhou, Zhejiang). Etymology. The specific epithet is derived from the Latin liberatus, referring to the sacculus free from the cucullus distally.Published as part of Wang, Ailing, Guan, Wei & Wang, Shuxia, 2020, Genus Stathmopoda Herrich-Schäffer, 1853 (Lepidoptera: Stathmopodidae) from China: Descriptions of thirteen new species, pp. 358-380 in Zootaxa 4838 (3) on pages 369-370, DOI: 10.11646/zootaxa.4838.3.3, http://zenodo.org/record/440412