Amphinemura kondratieffi Li, Yang & Li, 2023

Li, Mengyu, Yang, Ding & Li, Weihai, 2023, Two new species of Amphinemura (Plecoptera: Nemouridae) from Yunnan Province, southwestern China, Zootaxa 5231 (5), pp. 591-597 : 591-593

publication ID	https://doi.org/ 10.11646/zootaxa.5231.5.8
publication LSID	lsid:zoobank.org:pub:82592929-79FA-4A86-B061-97502D131D0C
DOI	https://doi.org/10.5281/zenodo.7609776
persistent identifier	https://treatment.plazi.org/id/6E1287E1-4144-7111-60FF-F8F4FB51FB4D
treatment provided by	Plazi
scientific name	Amphinemura kondratieffi Li, Yang & Li
status	sp. nov.

Treatment

Amphinemura kondratieffi Li, Yang & Li View in CoL , sp. nov.

( Figs. 1 View FIGURE 1 , 3a–3c View FIGURE 3 )

Male. Body length 6.0 mm. Forewing length 8.2 mm, hindwing length 7.8 mm (n=1). Body color dark brown. Head blackish; antennae dark brown; compound eyes black, palpi yellow brown; head wider than pronotum; pronotum rectangular, with distinct dark rugosities; legs dark brown but basal half of femora lighter. Wing membranes brownish, veins dark brown. Abdomen brown with darker terminal segments.

Tergum 9 sclerotized, but central portion darkly sclerotized, anterior margin deeply concaved, posteromedial incision triangular, laterally with several spinules and long hairs ( Figs. 1a View FIGURE 1 , 3a View FIGURE 3 ). Vesicle of sternum 9 claviform, length>3X maximum width, distinctly enlarged posterior to the typical basal constriction, then gradually tapering toward tip, apex obtusely rounded in ventral aspect but more pointed in lateral aspect ( Figs. 1b–c View FIGURE 1 , 3b–c View FIGURE 3 ). Hypoproct basally subquadrate, distal half gradually tapering, apex nipple-like ( Figs. 1b View FIGURE 1 , 3b View FIGURE 3 ). Tergum 10 distinctly sclerotized except an usual membranous concavity below the epiproct ( Figs. 1a View FIGURE 1 , 3a View FIGURE 3 ). Cercus short, medially curved inwards. Epiproct ( Figs. 1a, c–d View FIGURE 1 , 3a, c View FIGURE 3 ) basally subtriangular, distal half triangular but anterolaterally expanded after KOH treatment (comparing Fig. 1a View FIGURE 1 with Figs. 1d View FIGURE 1 and 3a View FIGURE 3 ). Dorsal sclerite mostly membranous, with band-like area of scaled surface along the stripe-like and sclerotized lateral arms that are ending near apex ( Figs. 1a, d View FIGURE 1 , 3a View FIGURE 3 ). Ventral sclerite strongly sclerotized, broad at basal third, then tapering towards tip, expanded into a large ventral ridge bearing two rows of stout spines ( Figs. 1c, d View FIGURE 1 , 3a, c View FIGURE 3 ). Paraproct inner lobe sclerotized and triangular ( Figs. 1b, e View FIGURE 1 , 3b View FIGURE 3 ); median lobe distinctly sclerotized, medial portion narrow and nearly parallel-sided, subapical portion curved laterally and dorsally and armed with 2–3 long spines ( Figs. 1a–c, e View FIGURE 1 , 3a–c View FIGURE 3 ), apex with several closely set long spines giving appearance of a single large prong ( Fig. 1a View FIGURE 1 , 3a View FIGURE 3 ); outer lobe heavily sclerotized, nearly as long as median lobe, with an irregular row of spines of similar size near apex ( Figs. 1a–c, e View FIGURE 1 , 3a–c View FIGURE 3 ).

Female. Body length 7.8–8.2 mm. Forewing length 9.5–10.0 mm, hind wing length 8.5–9.2 mm (n=2). General coloration and pronotal rugosities similar to males. Sternum 7 ( Fig. 1f View FIGURE 1 ) produced in a large, darkly sclerotized pregenital plate, its apex slightly concave medially and covering anterior half of subgenital plate. Sternum 8 ( Fig. 1f View FIGURE 1 ) forms sclerotized, bilobated subgenital plate with a medial indentation and posterolateral extensions. Paragenital plate paired, dark brown and banded, partly hidden by posterolateral corner of subgenital plate. Sternum 9 fully sclerotized, anterior margin triangularly protruded.

Nymph. Unknown.

Type material. Holotype male ( HIST), CHINA: Yunnan Province, Zhaotong City, Yanjin County, Miaoba Town , Xiaocaoba scenic spot, 1669 m, N 27.8344°, E 104.2921°, 3-IV-2021, leg. Yingying Wang. GoogleMaps Paratypes: 1 male, 1 female ( CAU) and 1 female ( HIST), same data as the holotype GoogleMaps .

Distribution. China (Yunnan Province).

Etymology. The specific epithet is named after our late friend and colleague Dr. Boris C. Kondratieff, from whose efforts we have greatly benefited.

Remarks. The cleared epiproct of A. kondratieffi sp. nov. is similar to A. auriculata Du & Wang, 2007 , a species also known from Yunnan Province. However, in A. auriculata , the outer lobe of the paraproct has a row of closely set spines at the apex (figs. 1, 4–5 in Du & Wang 2007) and the median lobe has an expanded apex with ear shaped projection bearing long hairs (figs. 1, 2 in Du & Wang 2007). In A. kondratieffi , the outer lobe has an irregular row of subapical spines and the median lobe apex is acute and spine-like ( Fig. 1a View FIGURE 1 , 3a View FIGURE 3 ).