Kuwayamachrysa wujiaoensis, Wang & Lai & Liu, 2025

Kuwayamachrysa wujiaoensis sp. nov.

( Figs 3 View FIGURE 3 , 4 View FIGURE 4 )

Diagnosis. Forewing veins mostly brown but longitudinal veins pale; hind wings with costal crossveins and outer gradate crossveins brown. Abdomen red ventrally, red stripes present dorsally.

Description. Body mostly green, 12.00– 13.80 mm long ( Fig. 3A, B View FIGURE 3 ).

Head. 1.30-1.40 mm wide (including compound eyes). Mostly green, with genal markings and lateral markings. Mandibles asymmetrical, broad; labial palpomeres marked black, maxillary palpus black apically, brownish and tapered apically. Antenna shorter than forewing, brownish, pale at base; scape and pedicel greenish, unmarked, flagellar setae arranged in four rings, flagellum yellowish, setae brownish ( Fig. 3B, C View FIGURE 3 ).

Thorax. Greenish, pronotum about as long as wide; setae dark, with brown, broad stripes on lateral pronotum; transverse sulci present. A yellowish longitudinal median stripe present on pro-, meso-, and metanotum ( Fig. 3B, C View FIGURE 3 ).

Legs. Greenish, unmarked, covered with short black setae; claws curved, brown.

Forewing. 13.60-15.10 mm long. Wing membrane transparent, rounded apically, tegula unmarked; longitudinal veins mostly greenish, base of anal veins greenish, other veins marked brown. Costa area narrow basally, costal crossveins simple, straight, slightly sinuous on third and fourth crossveins, 16 costal crossveins present; basal subcostal crossvein present, crossveins posteriad pterostigma absent; 12 radial crossveins present; intramedian cell (im) triangular, subdistally connected by 1rp-m crossvein; series of gradate corssveins varied in number, three gradate series of crossveins present in most individuals but two present occasionally, number of gradates (inner/ middle/outer: 6/2/7, or inner/outer: 7/8); basal crossveins of first gradate series not meeting PsM; dcc open, CuP not forked ( Fig. 3A View FIGURE 3 ).

Hind wing. Pterostigma greenish, veins greenish, but costal crossveins, anterior half of radial crossveins and outer gradate veins marked brown, inner gradate greenish basally and brownish distally; 12 costal crossveins present; seven crossveins between PsC and PsM; two gradate series of crossveins present, number of gradates (inner/outer): 5/7 ( Fig. 3A View FIGURE 3 ).

Abdomen. Greenish; red stripe present on sterna 2-7, brownish markings on terga present; sterna covered with short black setae; spiracles small, round, not enlarged, atria not enlarged ( Fig. 3A View FIGURE 3 ).

Male genitalia. Terminalia broad; tergum 9 and ectoprocts fused; ectoproct rounded; dorsal invagination shallow; thick setae on ectoproct absent; sterna 8 and 9 fused, regular, without strong apical setae; gonarcus medially fused, lateral arm expanded; entoprocessus slender, slightly curved, bifurcated and slightly expend; mediuncus closely associated with gonarcus, elongate, laterally expended, mediuncus process absent; gonosaccus robust, with gonosetae and spinellae; parameres absent; numerous gonostae present; gonapsis constituted by a pair of asymmetrical lobes, with lateral lobe expanded and right lobe tapering distad, curved; tignum absent ( Fig. 4A, C, D, E, F View FIGURE 4 ).

Female genitalia. Tergum 9 and ectoprocts fused; sternum 7 simple, apically rounded; subgenitale broader than long, attached on a broad membranous structure; spermatheca small, more flat than other; vela thick and elongate; spermathecal twisted ( Fig. 4B, G, H View FIGURE 4 ).

Type material. Holotype ♂, CHINA, Sichuan: Muli, Wujiao (屋¶), 27.9624°N, 100.7473°E, 2823 m, 24.VII.2020 (L), Yuezheng Tu ( CAU) GoogleMaps . Paratypes: 2♂ 2♀, same data as holotype ( CAU) GoogleMaps .

Etymology. The new species is named after its type locality, i.e., Wujiao Village in southwestern Sichuan.

Distribution. China (Sichuan).

Remarks. This new species can be differentiated by the red stripes present on terga, and the smaller size of the gonapsis in the male genitalia.

DNA barcode sequence

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