Promalactis maoxianensis Wang 2026, sp. nov.
Year: 2026
Type: article
Abstract: Promalactis maoxianensis Wang sp. nov. (Figs 2, 6, 8) Type material. Holotype ♂, CHINA, Sichuan: Songpinggou, Maoxian County (32.09ºN, 103.64ºE), 2385 m, 4.VII.2021, leg. S Yu, XJ Zhu and D Zhang, slide No. MQY25159. Paratypes. 16♂ 1♀, 3–6.VII.2021,same data as holotype, slide Nos. MQY25155♂, MQY25156♀, MQY25636♂, MQY25637♂. Diagnosis. The new species is similar to P. subquadrata Wang, 2019 in male genitalia. It can be distinguished by the triangular uncus about 2/3 the length of the gnathos, the gnathos produced to a small process apically, and the right valva with apex concave above the ventral margin. In P. subquadrata, the semicircular uncus is about 1/3 the length of the gnathos, the gnathos lacks an apical process, and the apex of the right valva is straight. Description. Adult (Fig. 2) with wingspan 12.0–14.0 mm. Head. Vertex white, frons greyish brown, occiput dark brown. Labial palpus with second segments yellow on inner surface, orange yellow on outer surface; third segment black except white at apex. Antenna with scape white dorsally, pale yellowish brown ventrally; flagellum black alternating with white dorsally, black ventrally. Thorax. Mesonotum and tegula blackish brown. Forewing orange yellow; basal fascia dark brown, outer margin edged with black scales, a white line adjacent to black scales; median fascia dark grey, edged with black scales, narrowed medially, widened to costal margin between basal 2/5 and before distal 1/3, widened to ventral margin between end of fold and tornus; distal patch greyish black, edged with black scales on inner margin, narrowed along termen to tornus; fringe orange yellow except greyish black on extension of distal patch and around tornus. Hindwing and fringe greyish brown. Male genitalia. (Fig. 6). Uncus weakly sclerotized, broadly triangular, gradually narrowed from base to before papillary apex. Gnathos sublingulate, produced to a papillary process apically. Tegumen furcate from posterior 1/3, narrowed to anterior end laterally. Valva broad subrectangular, asymmetrical: left valva subparallel to sclerotized, flat apex, costa broadly banded, with dense spines in distal 1/3, sacculus wide and parallel to middle, notched obliquely outward beyond middle; right valva parallel to apex, apex concave above ventral margin, forming two lobes: dorsal lobe large, rounded, with dense setae and spines on rounded apical margin, ventral lobe much smaller, subquadrate, costa banded, roundly produced distally, sacculus wide at base, narrowed to basal 2/5, concave in a small notch on dorsal margin near middle, uniformly narrow distally. Saccus subtriangular, distinctly narrowed to apex, longer than uncus. Juxta weakly sclerotized in basal 2/5, strongly sclerotized in distal 3/5, widened from base to basal 2/5, then narrowed to rounded apex; basal lobe slender, clavate, reaching 3/5 length of saccus. Phallus slender in basal 1/4, thereafter uniform to apex, curved at distal 1/4, with a small sclerotized plate near apex (6a); cornutus absent. Female genitalia. (Fig. 8). Papillae anales subrectangular, sparsely setose. Apophyses anteriores about half length of apophyses posteriores. Eighth sternum with sparse setae, slightly concave at middle on posterior margin. Lamella antevaginalis subpentagonal, strongly sclerotized. Ductus bursae narrow posteriorly, widened toward corpus bursae, with a sclerotized rectangular plate extending into corpus bursae anteriorly. Corpus bursae ovate, membranous; signum linear, arched medially, with dense denticles. Distribution. China (Sichuan). Etymology. The specific epithet is from the type locality, Maoxian County, Sichuan Province.
Authors: Min, Qiuyue, Li, Houhun, Wang, Shuxia
Institutions: Kashi University, Nankai University
Language: English
Subfield: Insect Science
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W7140094064