Promalactis baoshana Wang, 2021

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, Zootaxa 4980 (2), pp. 293-330 : 297

Promalactis baoshana Wang , sp. nov.

( Figs 4 , 26 )

Type material. CHINA, Yunnan: Holotype ♂, Nankang (24.82°N, 98.78°E), Baoshan, 2009 m, 18.VII.2015, leg. KJ Teng & X Bai, slide No. JYY17588 . Paratypes (2♂): same data as holotype, except 17‒18.VII.2015, slide Nos. JYY17843, LC19779 .

Diagnosis. The new species is superficially similar to P. fortijuxtalis Wang, Du & Li, 2013 and P. diehli Lvovsky, 2000 in the shared possession of an arched antemedian streak and a tiny white tornal spot on the forewing. It can be distinguished from P. fortijuxtalis by an elongate asymmetrical distal process of the valva, which is symmetrical in the latter species. It can be distinguished from P. diehli by the valva extended to an elongate process distally and the juxta with dense long spines; in P. diehli , the valva is not extended distally and has two apical processes, and the juxta lacks dense long spines.

Description. Adult ( Fig. 4 ). Forewing length 6.0‒ 6.5 mm.

Head: Vertex shining white, frons silvery brown, occiput rust brown. Labial palpus with second palpomere orange yellow, paler on inner surface; third palpomere dark brown. Antenna with scape silvery white; flagellum black, ringed with white dorsally.

Thorax: Dorsum of mesothorax and tegula rust brown. Forewing orange yellow; markings white edged with black scales: costal spot sub-triangular, extending from basal 3/5 obliquely outward to above posterior angle of cell; basal streak oblique inward to base of fold, straight; antemedian streak from dorsal 1/3 to anterior margin of cell at approximately basal 1/4 of forewing, slightly arched outward; dorsal streak from basal 2/3 obliquely outward to before posterior angle of cell; apical spot round, incised by black scales from inner margin; two smaller terminal spots below apical spot; tornal spot small, with deep silvery grey scales extending inward to end of dorsal streak, forming an irregular stripe; fringe orange yellow except grey around tornus. Hindwing and fringe greyish brown. Fore- and midlegs white on dorsal surface, black on ventral surface, tibiae with white scale tufts at end, mid tibia with a white stripe at base and middle on ventral side respectively, basal two tarsomeres white distally; hindleg greyish brown, basal tarsomere white distally, rest tarsomeres white except second and third tarsomeres black distally.

Abdomen: Male genitalia ( Fig. 26 ). Uncus wide at base, slightly narrowed to triangularly produced apex. Gnathos longer than uncus; mesial plate lingulate, slightly narrowed laterally before middle; basal arms slender, approximately half length of mesial plate. Tegumen widened anteriorly, with a shallow anterior emargination. Valva wide at base, slightly narrowed to basal 3/5; distal 2/5 produced to a narrow process, asymmetrical: left process wider, almost uniform, with an apical spine; right process narrow, slightly widened and bifurcate distally. Saccus slightly shorter than uncus, rounded apically. Juxta heavily sclerotized, curved, reaching posterior 1/3 of tegumen, pointed apically, with a row of spines on inner margin of distal 2/3; basal lobe slender, longer than saccus. Aedeagus straight, shorter than valva, with dentations apically; cornutus small and thin, straight.

Female. Unknown.

Distribution. China (Yunnan).

Etymology. This epithet refers to the type locality, Baoshan, Yunnan.

Figures

FIGURES 1‒8. Adults of Promalactis spp. 1, P. apiculifera, holotype, ♂; 2, P. apisetosa, holotype, ♂; 3, P. arcicosta, holotype, ♂; 4, P. baoshana, holotype, ♂; 5, P. bicornuta, holotype, ♂; 6, P. bilobignatha, paratype, ♂; 7, P. binipapillata, paratype, ♀; 8, P. bispina, paratype, ♀. Scales = 2 mm.

FIGURES 23‒28. Male genitalia of Promalactis spp. 23, P. apiculifera, holotype, slide No. HXM14207; 24, P. apisetosa, holotype, slide No. DZH11066; 25, P. arcicosta, paratype, slide No. LC19399; 26, P. baoshana, holotype, slide No. JYY17588; 27, P. bicornuta, holotype, slide No. DZH10246; 28, P. bilobignatha, paratype, slide No. LC19354, 28a, enlarged aedeagus. Scales = 0.2 mm.