Promalactis folivalvaris Wang, 2021

Wang, Shuxia & Liu, Chen, 2021, Taxonomic study of the genus Promalactis Meyrick, 1908 (Lepidoptera Oecophoridae) XI. The rubra species-group and the fuscimacularis species-group with descriptions of six new species, Zootaxa 4996 (2), pp. 309-321 : 315-317

publication ID	https://doi.org/ 10.11646/zootaxa.4996.2.5
publication LSID	lsid:zoobank.org:pub:2D49FEDC-9852-4C62-AE92-11668FD51B6C
persistent identifier	https://treatment.plazi.org/id/03BB87A7-FFE2-FF82-BA84-FC85DFF2F99E
treatment provided by	Plazi
scientific name	Promalactis folivalvaris Wang
status	sp. nov.

Treatment

Promalactis folivalvaris Wang , sp. nov.

( Figs 6 View FIGURES 1‒6 , 13, 14 View FIGURES 11‒14 )

Type material. China, Guangxi: Holotype ♂, Mt. Daming (23.40°N, 108.48°E), 1250 m, 27.V.2011, leg. LL Yang & YH Mou, slide No. DZH11041 GoogleMaps . Paratypes: 4♂ 3♀, 6, 27.V.2011, other data same as holotype, slide Nos. DZH11042 GoogleMaps ♀, DZH11075 ♂, DZH12340 ♂.

Diagnosis. The new species is similar to P. campanulata Wang, 2019 . It can be distinguished by the forewing with a white dorsal streak and a white apical spot, which are absent in P. campanulata ; in the male genitalia by the foliate valva with a small triangular apical process, the asymmetrical lateral lobes of the juxta and the presence of a cornutus; in P. campanulata the sub-campanulate valva has an elongate digitate apical process, the lateral arms of the juxta are absent, and the aedeagus lacks a cornutus.

Description. Adult ( Fig. 6 View FIGURES 1‒6 ). Forewing length 6.0‒ 7.5 mm. Head with vertex bright white, frons pale grey, oc- ciput dark brown. Labial palpus: first palpomere yellowish white on inner surface, dark brown on outer surface; second palpomere yellow on inner surface, ochreous brown on outer surface; third palpomere black except white at base and apex, with a longitudinal fine line on inner surface. Antenna: scape white, black apically on dorsal surface; flagellum white alternated with black on dorsal surface, dark brown on ventral surface. Thorax and tegula dark rust brown. Forewing ochreous yellow; costal margin black along basal 1/4, with a large sub-triangular black spot from basal 3/5 narrowed to posterior angle of cell, a few white scales within black spot anteriorly; basal spot quadrate, from dorsum reaching below anterior margin of cell, rust brown, with a fine white streak near its inner margin, another white streak arched on its outer margin and extending inward almost at right angle anteriorly, both white streaks edged with black scales; dorsal spot rectangular, from dorsal 3/4 oblique outward to before posterior angle of cell, rust brown, edged with black scales on anterior and outer margins; dorsal streak white, placed on inner margin of dorsal spot, edged with black scales; tornal spot deep grey with black scales, from beyond dorsal spot diffused to posterior angle of cell, nearly linked with costal spot; distal patch black, diffused and narrowed along termen, with a white elliptical spot at apex, below apical spot placed two small white spots on termen; fringe ochreous yellow except deep grey on costal margin distally and on extension of dorsal spot. Hindwing and fringe deep grey. Foreleg black except femur white ventrally, tibia with a white spot at base and middle, with a tuft of white scales at apex, tarsus with basal two and apical tarsomeres white apically; midleg white ventrally, black dorsally, tibia with a white longitudinal line at base, with a tuft of white scales at middle and apex, tarsus with basal two tarsomeres white apically, apical tarsomere white entirely; hindleg yellow ventrally, black dorsally, tarsus with basal four tarsomeres white apically, apical tarsomere white entirely.

Male genitalia ( Fig. 13 View FIGURES 11‒14 ). Uncus bell-shaped, broad at base, slightly narrowed to middle, distal half slender, pointed at apex, with sparse setae mediolaterally. Gnathos about 2/3 length of uncus; mesial plate wide at base, narrowed to basal 3/4, distal 1/4 slightly dilated, rounded, with scaly protuberances; lateral arm about 1/4 length of gnathos, band-like. Tegumen widened to posterior 3/5, divided from posterior 3/5; lateral arms narrowed triangularly. Valva foliate, narrow at base, widened to basal 2/3, then narrowed to apex, apex produced to a small triangular process; costa concave at base, arched distally; sacculus with basal 3/5 equally wide, distal 2/5 narrowed to apex, setose. Saccus about half length of uncus, broad triangular, rounded at apex. Juxta basally fused, rounded on anterior margin; lateral arms strong, wide at base, narrowed to pointed apex, left lateral arm shorter than right lateral arm. Aedeagus slightly curved, almost as long as valva, dilated basally, with a rounded sclerite distally, with a small apical spine; cornutus about 2/5 length of aedeagus, located at base of aedeagus, spine-shaped, very strong in basal 1/3, with several spines at its basal 1/3.

Female genitalia ( Fig. 14 View FIGURES 11‒14 ). Apophyses anteriores relatively thick, about half length of apophyses posteriores. Seventh sternum convex medially on posterior margin. Lamella postvaginalis mushroom-like, with dense tiny spines and sparse long setae on posterior margin. Ostium bursae large. Antrum large, broad posteriorly, narrow anteriorly, concave laterally, with a small square process anteromedially, right side with a small spine anteriorly. Ductus bursae long and curved, about 1.5 times length of corpus bursae, with longitudinal wrinkles; posterior 1/4 narrow, thick- ened from posterior 1/4 to anterior 3/4, sclerotized on dorsal side from basal 1/4 to 3/4, with three small spines near antrum. Corpus bursae large, pear-like, membranous; signum absent.

Distribution. China (Guangxi).

Etymology. The specific epithet of the new species is derived from the Latin foli - and valvaris, referring to the leaf-shaped valva of the male genitalia.

Checklist of the fuscimacularis species-group of the genus Promalactis Meyrick

Promalactis anteromacularis sp. nov.

Distribution. China (Hainan).

Promalactis biovata Wang, Kendrick et Sterling, 2009: 37 View Cited Treatment .

TL: China ( Hong Kong). TD: NKU.

Distribution. China ( Hong Kong).

Promalactis fengxianica Wang, Zheng et Li, 1997: 202 View in CoL .

TL: China (Shaanxi). TD: NKU .

Distribution. China (Henan, Shaanxi).

Promalactis folivalvaris sp. nov.

Distribution. China (Guangxi).

Promalactis fuscimacularis sp. nov.