Ripeacma stigmosa Xu & Wang 2022, sp. nov.
Creators: name: Xu, Zhixin
name: Wang, Shuxia
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Oecophoridae
Ripeacma
Ripeacma stigmosa

description: Ripeacma stigmosa Wang, sp. nov.
(Figs 9, 21)
Type material. CHINA, Hainan: Holotype ♂, Tianchi (18.73°N, 108.87°E), Jianfengling, 787 m, 10.III.2016, leg. QY Wang et al., slide No. LiSR16228.
Paratype: Hainan: 1♂, same data as holotype except dated 7.III.2016, slide No. LiSR16279; Yunnan: 1♂, Jingdong, 1140 m, 23.VI.2013, leg. ZG Zhang, slide No. XZX20259.
Diagnosis. The new species can be distinguished by the forewing having two discocellular stigmata, the irregularly circled juxta arched outward lateromedially, and produced postero- and anteromedially, and the aedeagus with a large sub-triangular sclerite from about distal 1/4 reaching near apex.
Description. Adult (Fig. 9). Wingspan 13.5 mm.
Head whitish yellow. Labial palpus yellow, with black scales on outer surface. Antenna yellow; scape with black scales and flagellum ringed with black on dorsal surface.
Thorax and tegula black basally, yellow distally. Forewing yellow, with yellowish brown scales; costal margin with a wide black band along basal 1/3, with a large semicircular black spot at middle and two–three black dots in distal 1/3; discal, discocellular and plical stigmata black, discocellular stigmata doubled, placed one above the other; terminal dots black, evenly spaced along termen to tornus; fringe grey along termen and dorsum. Hindwing and fringe grey. Legs yellow; coxa of foreleg black on ventral surface; on dorsal surface, femur and tibia of foreleg black, tibia of midleg black, with yellow streak at basal 1/3, at middle and at apex, tarsi of fore- and midlegs black at middle of first tarsomere and at base of second tarsomere as well as on entire third and fourth tarsomeres, femur of hindleg with black scales; on outer surface, tibia of hindleg with black scales at base and on distal half, tarsus black at middle of first tarsomere and at base of second tarsomere.
Male genitalia (Fig. 21). Uncus elongate triangular, narrowed from wide base to pointed apex, with a seta at middle laterally. Gnathos membranous, ventral plate indistinct. Tegumen uniformly wide medially, with a large Vshaped anterior emargination; lateral arms slightly narrowed to apex, longer than median width. Valva with costal and ventral margins subparallel, apex obtusely rounded, with a tuft of stout long setae at basal 1/3 above ventral margin; costa uniformly banded, reaching tip of costal margin; transtilla lobes uniformly banded, joined mesially by membrane; sacculus triangular, more sclerotized apically. Saccus wide at base, narrowed to basal 1/3, distal 2/3 clubbed, with a small elliptical membranous lobe apically. Juxta a large irregular circle, arched outward laterally, produced postero- and anteromedially. Aedeagus about 3/4 length of valva, tapered to pointed apex; banded process extending from before laterobasal 1/3 to middle length of aedeagus, then fused and produced to a triangular process distally; large sub-triangular sclerite from about distal 1/4 reaching near apex, with a tooth at each angle.
Female unknown.
Distribution. China (Hainan, Yunnan).
Etymology. The specific epithet is derived from the Latin stigmosus, referring to the black spots on the forewing.
description: Published as part of Xu, Zhixin & Wang, Shuxia, 2022, Description of twelve new species of the genus Ripeacma Moriuti, Saito & Lewvanich (Lepidoptera: Autostichidae) from China, pp. 521-540 in Zootaxa 5168 (5) on page 529, DOI: 10.11646/zootaxa.5168.5.2, http://zenodo.org/record/6911445