Promalactis binipapillata Wang & Liu 2021, sp. nov.
Creators: name: Wang, Shuxia
name: Liu, Chen
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Oecophoridae
Promalactis
Promalactis binipapillata

description: Promalactis binipapillata Wang, sp. nov.
(Figs 7, 29, 46)
Type material. CHINA, Yunnan: Holotype ♂, Taiyanghe Nature Reserve (22.68°N, 101.03°E), Pu’er City, 9. VI.2015, leg. ZG Zhang, slide No. JYY17611. Paratypes (2♂, 7♀): 1♂, 2♀, 8‒9. VI.2015, slide No. JYY17859 ♀, other same data as holotype; 1♀, Taiyanghe Nature Reserve, 1450 m, 23.VIII.2014, leg. ZG Zhang, slide No. JYY17881; 1♀, Taiyanghe National Forest Park, Pu’er City, 1450 m, 3‒6.VII.2015, leg. KJ Teng, slide No. JYY17883. Thailand: 1♂, Doi Suthep-Pui, Chiang Mai, 1440 m, 22‒23.IX.1986, leg. G.S. Robinson, slide No. NHMUK-010316888.
Diagnosis. The new species can be distinguished from its congeners by two features of the male genitalia: a tower-like uncus and a narrowly elongate valva with a dense patch of large setae and fine hairs along the ventral margin of the distal 3/5.
Description. Adult (Fig. 7). Forewing length 5.5‒6.5 mm.
Head: Vertex shining white, frons silvery grey, occiput rust brown. Labial palpus with second palpomere pale ocherous yellow, paler on inner surface; third palpomere blackish brown. Antenna with scape white; flagellum black, with white annulations on dorsal surface.
Thorax: Dorsum of mesothorax and tegula rust brown. Forewing orange yellow; markings white edged with black scales: costal spot sub-rectangular, extending obliquely outward to middle of outer margin of cell; basal streak oblique inward to base of fold, straight; antemedian streak from dorsal 2/5 to basal 2/5 of anterior margin of cell, slightly arched outward; dorsal streak from basal 2/3 extending obliquely outward to below and before posterior angle of cell; tornal spot small, with a black line extending from its anterior margin arched to end of dorsal streak; apical spot ovate; two terminal spots smaller, narrowed to posterior corner of termen, interrupted by black scales; fringe mostly orange yellow, greyish brown along distal part of costal margin and around tornus. Hindwing and fringe brown. Fore- and midlegs white on ventral surface, black on dorsal surface, tibiae with white scale tufts at apex, tarsi with basal two tarsomeres white distally; hindleg yellowish white ventrally, brown dorsally except tarsus white at apex of each tarsomere.
Abdomen: Male genitalia (Fig. 29). Uncus tower-like, widened from base to basal 1/4, then narrowed to basal 2/3, distal 1/3 uniformly slender, rounded at apex; two pairs of lateral papillary lobes, one at basal 1/4 and another at basal 2/3, both with long setae. Gnathos shorter than uncus; mesial plate broad tongue-shaped, rounded apically, distal 3/5 spiculate; basal arms shorter than mesial plate, slightly narrowed at base. Tegumen widened to posterior 2/5; lateral arms slightly narrowed to rounded apex. Valva elongate, basal 2/5 uniform in width, with a distinct basal opening, distal 3/5 slightly narrowed to rounded apex, with large dense setae and fine hairs along ventral margin and around apex. Sacculus wide at base, narrowed to distal end, apically reaching beyond basal 1/3 of ventral margin; saccus approximately half length of valva, narrowed to rounded apex. Juxta broad, triangularly produced distally; basal lobe clubbed. Aedeagus almost as long as valva, slightly curved; cornutus absent.
Female genitalia (Fig. 46). Papillae anales setose, rounded caudally. Apophyses posteriores 3 times length of apophyses anteriores. Lamella postvaginalis tubular, with sparse setae distally, straight apically; lamella antevaginalis broad cup-shaped, with a spine lateroapically. Ductus bursae with basal 2/3 heavily sclerotized, uniform in width, distal 1/3 broadened, membranous, with a narrow spiral belt bearing 1‒2 short spines. Corpus bursae 0.5 time length of ductus bursae, granulate; signum consisting of two short denticles, with a weakly sclerotized basal plate.
Distribution. China (Yunnan); Thailand.
Etymology. The specific epithet is derived from the Latin bini- and papillatus, referring to the two pairs of papillary lobes of the uncus.
description: Published as part of Wang, Shuxia & Liu, Chen, 2021, Taxonomic study of the genus Promalactis Meyrick, 1908 (Lepidoptera: Oecophoridae) X. The commotica species-group, with descriptions of twenty-two new species, pp. 293-330 in Zootaxa 4980 (2) on pages 302-303, DOI: 10.11646/zootaxa.4980.2.4, http://zenodo.org/record/4889068