Amphinemura pentaspina Kong, Yang & Li, 2025

Kong, Xiangfei, Lin, Aili, Bozdoğan, Hakan, Yang, Ding & Li, Weihai, 2025, Two new species of the Amphinemura luteipes species group (Plecoptera: Nemouridae) from Xizang, China, Zootaxa 5566 (1), pp. 185-192 : 187-191

publication ID	https://doi.org/ 10.11646/zootaxa.5566.1.9
publication LSID	lsid:zoobank.org:pub:E17139EB-1205-421D-BBF0-C82E83321B7C
DOI	https://doi.org/10.5281/zenodo.14613135
persistent identifier	https://treatment.plazi.org/id/524E87DE-402A-FFF3-8DE0-2038FCDAF9AB
treatment provided by	Plazi
scientific name	Amphinemura pentaspina Kong, Yang & Li
status	sp. nov.

Treatment

Amphinemura pentaspina Kong, Yang & Li , sp. nov.

( Figs. 1b View FIGURE 1 , 3 View FIGURE 3 , 4d–4f View FIGURE 4 )

Male habitus. Body color generally brownish ( Fig. 1b View FIGURE 1 ). Head dark brown; antennae and palpi yellowish brown; compound eyes black; head slightly wider than pronotum; pronotum dark brown, corners obtuse and lateral margins bulging, with brown dotted and scattered larger rugosities. Legs yellow, tibia of hindlegs with dark distal band. Wing membranes brownish, veins brown. Abdominal segments including terminalia dark brown.

Male. Forewing length 5.9–6.0 mm, hind wing length 4.6–4.7 mm (n=2). Tergum 9 lightly sclerotized, with irregular rows of short spines and bristles at posterior margin ( Fig. 4d View FIGURE 4 ). Slender vesicle of sternum 9 claviform, length barely 6.0X maximum width, slightly constricted medially ( Figs. 3b View FIGURE 3 , 4e View FIGURE 4 ). Hypoproct subquadrate at basal half, medial portion gradually tapering toward nipple-like tip ( Figs. 3b View FIGURE 3 , 4e View FIGURE 4 ). Tergum 10 sclerotized, a membranous concavity present below the epiproct, bearing many black spines along either side of the concavity ( Figs. 3a View FIGURE 3 , 4d View FIGURE 4 ). Cercus membranous, length approximately 2.0X width ( Figs. 3a View FIGURE 3 , 4d View FIGURE 4 ). Epiproct nearly rectangular ( Figs. 3c View FIGURE 3 , 4d View FIGURE 4 ), apex triangularly notched ( Fig. 4d View FIGURE 4 ). Dorsal sclerite mostly membranous, lateral arms darkly sclerotized, basally band-like distinctly tapering medially, apical half stripe-like ( Figs. 3c View FIGURE 3 , 4d View FIGURE 4 ). Ventral sclerite distinctly sclerotized, wide at base, tapering toward apex, apical portion extended over dorsal sclerite forming a posteriorly directed tube ( Figs. 3d View FIGURE 3 , 4f View FIGURE 4 ), ventral ridge located at apex, arcuate with rows of tiny black spines ( Fig. 4f View FIGURE 4 ). Paraproct inner lobe slightly sclerotized, nearly triangular, most hidden by hypoproct ( Figs. 3e View FIGURE 3 , 4e View FIGURE 4 ); median lobe slightly sclerotized, curved upward medially, with three ventrally directed spines apically ( Figs. 3e View FIGURE 3 , 4e View FIGURE 4 ); outer lobe shorter than median lobe, basal portion stripe-like and distinctly sclerotized, apical half membranous, curved upward entirely fused with median lobe, with two larger apical spines ( Fig.3e View FIGURE 3 ).

Female and nymph. Unknown.

Type material. Holotype male ( CAU): CHINA, Xizang Autonomous region , Motuo County, 885m, N 29.3288°, E95.3227°, 28-VII-2014, leg. Tingting Zhang. GoogleMaps Paratype: 1 male ( CAU), the same data as the holotype GoogleMaps .

Etymology. The specific name refers to the number of spines of the paraproct.

Distribution. China (Xizang Autonomous Region).

Diagnosis. Amphinemura beibeng sp. nov. appears to be closely related to A. pentaspina sp. nov. after comparing members of the A. luteipes species group ( Aubert 1967). Both species share similarities with regards to the epiproct apical tube and ventral ridge, paraproct characteristics, and pronotal color pattern.

Paraproct characteristics distinguishes the two species from each other. The apex of the outer paraproct lobe of A. beibeng sp. nov. terminates into an outcurved projection and forming prominent fork with the fingerlike apex of the median lobe ( Figs. 2a View FIGURE 2 , 4a View FIGURE 4 ) whereas for A. pentaspina sp. nov. the outer paraproct lobe is entirely fused with median lobe ( Figs. 3e View FIGURE 3 , 4e View FIGURE 4 ). The two new species also resemble two Himalayan species of the group, A. bomdilai Aubert, 1967 and A. paraluteipes , in having similarly curved ventral ridge of the epiproct, but they can be separated from them by details of paraproct as summarized in Table 2 View TABLE 2 .