Rhopalopsole jizushana Mo & Wang & Yang & Li 2018, sp. nov.

Rhopalopsole jizushana sp. nov.

(Figs. 3 & 4)

Description. Forewing length ca. 6.5 mm. Head (Fig. 3a) dark brown with small irregular darker markings, wider than pronotum; compound eyes black; antennae brown; pronotum (Fig. 3a) brown, subquadrate, all angles obtuse and surface with black irregular rugosities. Thorax brown; wings light grayish brown and veins brown; legs brown. Abdomen brown with terminalia dark brown.

Male (Figs. 3 & 4). Tergum 9 (Figs. 3b & 4a) moderately sclerotized except with a weakly sclerotized narrow longitudinal medial strip and a pair of strongly sclerotized paramedial bands which covered by dense tubercles at mid-posterior margin of tergum 9, distinctly protruding and overhanging anterior ⅓ of tergum 10. Sternum 9 (Fig. 4b) weakly sclerotized basally with tongue–like vesicle bearing dense hairs; subgenital plate broad, tip tongue–like and longer than wide. Tergum 10 (Figs. 3b & 4a) central plate with three fused portions: the lateral sclerites thin, triangular and strongly sclerotized; the mesal sclerite weakly sclerotized, with a strongly sclerotized bowl-shaped plate with tiny knobs at mid-posterior margin; transverse bars scalpel-like, distinctly sclerotized; lateral projections (Figs. 3c, 4a–4c) moderately sclerotized, slightly upcurved and nearly parallel-sided, acute in lateral view and basally subquadrate and gradually tapering to a sharp ending. Cercus (Figs. 3b–3c, 4a–4c) long, upcurved, rounded apically without an apical spine, abruptly constricted subapically. Epiproct small, apically forming a strongly upcurved hook, the dorsal apex of the epiproct appears darkly sclerotized (Figs. 3b & 4a), appearing erect as a sharp point in lateral view, in caudal view generally triangular with an acute apex (Figs. 3c, 4c–4d). Subanal lobe (Figs. 3c–3e, 4b–4c) nearly subquadrate in ventral view but triangular in lateral view; medially upturned, with distinct longitudinal furrows and two distinctly sclerotized, apically convergent, triangular lateral flaps; the tip of subanal lobe in caudal view with a darkly sclerotized lip-like structure, oval in ventral view.

Female. Unknown.

Type Material. Holotype male (HIST): China, Yunnan Province, Dali County, Jizu Mountain, Biyun Temple, inflow stream above Yulong Falls, N25°58.125' E100°21.373', 2200m, 24-VII-2017, leg. W.H. Li.

Etymology. The specific name refers to Jizu Mountain where the new species was collected.

Distribution. China, Yunnan Province.

Remarks. Rhopalopsole jizushana is also a typical species of R. magnicerca group sensu Sivec et al. (2008). The male of the new species is characterized by a pair of subquadrate paramedial bands that distinctly protrude and overhang the anterior ⅓ of tergum 10, by the subquadrate subanal lobe with large triangular lateral flaps in ventral view, and with a darkly sclerotized lip-like structure in caudal view. With the exception of R. sapa Stark & Sivec, 2012 (Stark et al. 2012), other species of the group the posterior margin of tergum 9 is truncate (Sivec et al. 2008, Chen & Du 2017, Li & Yang 2012, Li et al. 2017, Qian & Du 2013). However, R. sapa has an entire central plate and lateral projections of tergum 10 with truncate tips. The parallel-sided lateral projections also occur in R. emeishana, a species also recorded from Shaanxi, Sichuan, and Yunnan provinces of China. However, R. emeishana has the posterior margin of tergum 9 truncate, whereas that of R. jizushana is distinctly protruding.