Amphinemura kondratieffi Li, Yang & Li 2023, sp. nov.
Creators: name: Li, Mengyu
name: Yang, Ding
name: Li, Weihai
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Nemouridae
Amphinemura
Amphinemura kondratieffi

description: Amphinemura kondratieffi Li, Yang & Li, sp. nov.
(Figs. 1, 3a–3c)
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, 3a). 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, 3b–c). Hypoproct basally subquadrate, distal half gradually tapering, apex nipple-like (Figs. 1b, 3b). Tergum 10 distinctly sclerotized except an usual membranous concavity below the epiproct (Figs. 1a, 3a). Cercus short, medially curved inwards. Epiproct (Figs. 1a, c–d, 3a, c) basally subtriangular, distal half triangular but anterolaterally expanded after KOH treatment (comparing Fig. 1a with Figs. 1d and 3a). 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, 3a). 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, 3a, c). Paraproct inner lobe sclerotized and triangular (Figs. 1b, e, 3b); 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, 3a–c), apex with several closely set long spines giving appearance of a single large prong (Fig. 1a, 3a); 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, 3a–c).
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) produced in a large, darkly sclerotized pregenital plate, its apex slightly concave medially and covering anterior half of subgenital plate. Sternum 8 (Fig. 1f) 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. Paratypes: 1 male, 1 female (CAU) and 1 female (HIST), same data as the holotype.
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, 3a).
description: Published as part of Li, Mengyu, Yang, Ding & Li, Weihai, 2023, Two new species of Amphinemura (Plecoptera: Nemouridae) from Yunnan Province, southwestern China, pp. 591-597 in Zootaxa 5231 (5) on pages 591-593, DOI: 10.11646/zootaxa.5231.5.8, http://zenodo.org/record/7609756