Tachycines (Gymnaeta) wuxiensis Zhu & Shi, 2026, sp. nov.

Tachycines (Gymnaeta) wuxiensis sp. nov. urn:lsid:zoobank.org:act: C9049DC1-C8D2-4684-983A-679C622898DC Figs 2C–D, 3–4 Diagnosis The new species is similar to Tachycines (Gymnaeta) buyii Zhou & Yang, 2022 and T. (G.) portae Zhou & Yang, 2022 in the male genitalia, but it can be distinguished by the basal area of the dorsal sclerite of the male genitalia being less concave and the apical area distinctly wider (Fig. 2C–D). In T. (G.) buyii, the dorsal sclerite of the male genitalia is nearly H-shaped (Zhou & Yang 2022: 128, fig. 7a), and in T. (G.) portae, the dorsal sclerite of the male genitalia is nearly door-shaped (Zhou & Yang 2022: 129, fig. 8a). Etymology The name of the new species derives from the type locality. Material examined Holotype CHINA • ♂; Chongqing, Wuxi, Shuangyang; 31°29′12″ N, 109°49′14″ E; 1022 m a.s.l.; 12 Aug. 2022; Q.D. Zhu leg.; JXAUM. Paratypes CHINA • 4 ♂♂, 5 ♀♀; same data as for holotype; JXAUM. Other material CHINA • 2 ♂♂, 6 ♀♀; Chongqing, Wuxi, Shuangyang, Longtandong; 31°30′58″ N, 109°49′43″ E; 1217 m a.s.l.; 11 Aug. 2022; Q.D. Zhu leg.; JXAUM • 1 ♂, 3 ♀♀; Chongqing, Wuxi, Shuangyang, Suidaodong; 31°28′23″ N, 109°51′29″ E; 1386 m a.s.l.; 13 Aug. 2022; Q.D. Zhu leg.; JXAUM • 2 ♂♂, 3 ♀♀; Chongqing, Wuxi, Lanying; 31°25′22″ N, 109°48′23″ E; 822 m a.s.l.; 18 Aug. 2022; Q.D. Zhu leg.; JXAUM • 1 ♂, 1 ♀; Chongqing, Wuxi, Shuangyang; 31°28′13″ N, 109°47′47″ E; 1796 m a.s.l.; 19 Aug. 2022; Q.D. Zhu leg.; JXAUM. Description BODY. Medium-sized. HEAD. Fastigium verticis short, with two conical tubercles, apices obtuse, separated, pointing forwards. Eyes ovoid, protruding forwards; median ocellus oval, located between antennal sockets, lateral ocelli nearly circular, situated on lateral surface of basal rostral tubercles. Apical segment of maxillary palp obviously longer than subapical one, apex globular. THORAX. Pronotum broad, anterior margin of disc straight, posterior margin arcuate; lateral lobe longer than high, ventral margin arc-shaped. Mesonotum and metanotum short, posterior margin of mesonotum arcuate, posterior margin of metanotum straight. Fore coxa with one small spine; femur unarmed on ventral surface, internal genicular lobe with one small spine, external genicular lobe with one long spine; tibia with one inner spine and two outer spines on ventral surface, apex with one outer spine on dorsal surface and a pair of spines on ventral surface with one small spine in between. Middle femur unarmed on ventral surface, internal and external genicular lobes with one long spine, respectively; tibia with one inner spine and one outer spine on ventral surface, apex with a pair of dorsal spines and a pair of ventral spines with one small spine in between. Hind femur unarmed on ventral surface, internal and external genicular lobes with one small spine, respectively; tibia with 57–62 inner spines and 60–63 outer spines on dorsal surface, subapex with a pair of dorsal spines, apex with a pair of dorsal spines and two pairs of ventral spines, intero-dorsal spine obviously shorter than hind basitarsus; hind basitarsus with one dorsal spine. MALE ABDOMEN. Posterior margins of all abdominal tergites straight. Epiproct tongue-shaped, paraproct triangular in lateral view. Cercus long, conical, apex acute. Genitalia with dorsal sclerite, basal area narrow, anterior margin slightly concave, gradually widenening to apical area, posterior margin deeply concave, dorso-median lobe with lateral sclerite, nearly oval, anterior margin straight, posterior margin blunt, extended to subapical area, apical area with a pair of lobes, dorso-lateral lobe cylindrical, longer than dorso-median lobe, ventro-lateral lobe nearly equal to dorso-lateral lobe, ventro-median lobe short, with a concavity. Subgenital plate transverse and broad, in the middle with conical protuberance, posterior margin straight. FEMALE ABDOMEN. Ovipositor narrow and long, slightly curved upwards, dorsal margin smooth, apical areas of ventral margin denticulate. Subgenital plate triangular. COLORATION. Body uniformly light brown. Eyes black, ocelli yellowish-brown. Basal half of hind femur with penniform yellowish-brown stripes. Measurements (mm) Body length: ♂: 16.08–19.66, ♀: 17.66–21.04; length of pronotum: ♂: 5.66–5.82, ♀: 5.56–5.72; length of fore femur: ♂: 14.56–15.56, ♀: 13.28–14.20; length of hind femur: ♂: 26.56–27.40, ♀: 24.66–26.14; length of hind tibia: ♂: 30.78–30.90, ♀: 27.46–29.48; length of hind basitarsus: ♂: 6.04–6.24, ♀: 5.50– 5.54; length of ovipositor: 14.20–14.74. Distribution China (Chongqing).