Haploperla valentinae Stark & Sivec, 2009

Rehman, Abdur, Huo, Qing-Bo & Du, Yu-Zhou, 2022, Two new synonyms of Haploperla valentinae Stark & Sivec, 2009 and supplementary redescription of H. tuanjiena Chen & Du, 2016 from western China, Zootaxa 5128 (1), pp. 119-128 : 120-122

publication ID	https://doi.org/ 10.11646/zootaxa.5128.1.7
publication LSID	lsid:zoobank.org:pub:551BFE9E-7F0A-45E8-87A4-817C82B3BDEA
DOI	https://doi.org/10.5281/zenodo.6498177
persistent identifier	https://treatment.plazi.org/id/038D87DE-636D-FFC2-FF37-EA074F0AFD36
treatment provided by	Plazi
scientific name	Haploperla valentinae Stark & Sivec, 2009
status

Treatment

Haploperla valentinae Stark & Sivec, 2009 View in CoL

http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org:TaxonName:3414

Haploperla valentinae Stark & Sivec 2009:162 View in CoL View Cited Treatment . Holotype male (PMSL), Pitiao River , Balangshan Pass, Sichuan Province, China.

Haploperla triangulata Chen & Du, 2016a:2 View in CoL View Cited Treatment . Holotype male (ICYZU), Shuixia , Huangzhong county, Qinghai Province, China (examined). syn. nov.

Haploperla datongensis Chen & Du, 2016b:418 View in CoL View Cited Treatment . Holotype male (ICYZU), Datong County, Qinghai Province, China (examined). syn. nov.

Material examined: 6 males, 62 females, China: Sichuan Province, Wanglang, Baimazhai ,> 2000 m, 2006-VII-24–26 , leg. unknown; 8 males, 28 females, China, Sichuan Province, Wolong Giant Panda Museum, near Qingyuan restaurant, 1980 m, 2006-VII-21 and 2006-VII-29 , leg. unknown; 4 males, 3 females, Sichuan Province, Wanglang Nature Reserve, Changbaigou River , 2016-VII-24, leg. Li Yi-Zhe.

Haploperla triangulata Chen & Du, 2016 , syn. nov. Holotype, 1 male, China: Qinghai Province, Huangzhong County, Shuixia , N 37.3794, E 101.6902, 2590 m, 2015-VIII-8, leg. Yu-Zhou Du, Zhi-Hou Li, Qiu-Yu Fan GoogleMaps ; Paratypes: 5 females, same data as holotype GoogleMaps .

Haploperla datongensis Chen & Du, 2016 , syn. nov. Holotype, 1 male, China: Qinghai Province, Datong County, Mt. Dabanshan, Haomen River , N 37.5475, E 101.6952, 3482 m, 2016-VIII-27, leg. Yu-Zhou Du, Zhi-Teng Chen, Qing-Bo Huo GoogleMaps ; Paratypes: 1 male, 1 female, same data as holotype GoogleMaps .

Adult habitus. Triocellate. General body color yellow and patterned with dark brown. Head slightly rounded, mostly yellow without any marking, ocelli and compound eyes black. Pronotum disk pale yellow, bearing an obscure median band, margins of disk brown, mesonotum and metanotum medially bearing dark brown U-shaped patterns with a strong mesal prong in the middle, legs pale yellowish ( Fig. 1A View FIGURE 1 ). Hyaline wings, Rs of both wings are branched, near base, A3 of forewing fused with A2. The anal field of hindwing is small and folded with three veins. The abdominal terga 1–8 each has a median longitudinal brown stripe; tergum 8 median stripe is smaller than other segments. Cerci yellowish-brown covered with long dark brown setae.

Male: Body length 5.0–6.0 mm, forewing length 6.2–6.6 mm, hindwing length 5.8–6.2 mm (n = 10). Tergum 9 slightly concave, yellowish, bearing long thick brown hairs, without posterior lobe; a dark brown medial broad Y-shaped patch arises from posterior margins of tergum 9 to tergum 10 beneath the epiproct. Tergum 10 divided medially bearing brown hairs ( Fig. 1B–C View FIGURE 1 ). Epiproct short, outline is subtriangular with slightly rounded margins dorsally ( Fig. 1D View FIGURE 1 ). The dorsal anterior and anteroventral portions of the epiproct are strongly sclerotized, while the posterodorsal area is membranous, covered with tiny setae, and the epiproct apex is rounded ( Fig. 1E View FIGURE 1 ). Aedeagus long, membranous and curved ventrally, apex of aedeagus divided into two lobes, tips bearing small thick spines extended through the anterior side of aedeagus; ventrally with two median elliptical rounded lobes, lobes dorsally and ventrally covered with small spines, each lobe connected with dark sclerotized stylus, in lateral view the stylus is S-shaped. The basal part of aedeagus is membranous, dorsally and ventrally covered with spines, medially with two dark brown sclerotized bands ( Fig. 2A–E View FIGURE 2 ).

Female: Body length 6.5–7.5 mm, forewing length 7.0– 7.5 mm, hindwing length 6.0– 6.5 mm (n = 10). General body color is similar to males. Head and thoracic segments same as male. The abdominal terga 1–7 each medially with dark brown oval stripes. However, tergum 8 with paler brown stripes and tergum 9 and 10 without brown stripes and covered with fine hairs. Abdominal sterna and terminalia are without any markings. Tergum 8 ventrally with distinct, broad subgenital plate, the plate originates from the median portion of tergum 8 to posterior portion of tergum 9, posterior margins of subgenital plate protruding, forming a bluntly rounded lobe and clothed with long pale hairs ( Fig. 3A–D View FIGURE 3 ).

Egg: Length ca. 0.32 mm, width ca. 0.20 mm, collar width ca. 0.05 mm. The collar of the egg with a single row. The chorion surface is rough and irregularly covered with tiny raised hexagonal-like projections ( Fig. 3E–G View FIGURE 3 ).

Nymph: Unknown.

Remarks: This species was reported for the first time by Stark & Sivec (2009) from Sichuan Province, Pitiao River, Balangshan Pass. According to Stark & Sivec (2009), this species is closely related to Haploperla lepnevae and H. ussurica Navás, 1934 , formerly reported from northeastern China. Both species have triangular-shaped epiproct with narrow tips but are easily distinguished from H. valentinae based on epiproct structure and aedeagus. We agree with Stark & Sivec (2009) that this species is closely related to the above two species. Besides these species, we found that the morphology of H. triangulata and H. datongensis , especially the epiproct and body pigmentation, are also closely similar to H. valentinae . For confirmation, we checked the type materials of H. datongensis ( Fig. 4A–D View FIGURE 4 ) and H. triangulata ( Fig. 5A–D View FIGURE 5 ) from Qinghai Province ( Chen & Du 2016a, Chen & Du 2016b) present at ICYZU. We found that the holotype morphology of both species is similar to the H. valentinae ( Fig. 1A–F View FIGURE 1 ). It is worth noting that the male of these species exhibits some minor differences, namely that the posterodorsal area of the epiproct of H. valentinae (see Stark & Sivec, 2009: figs. 12–13) and H. datongensis ( Fig. 4B View FIGURE 4 ) bear a sparse patch of short setae while the holotype of H. triangulata ( Fig. 5B View FIGURE 5 ) and the specimens collected from Sichuan Province ( Fig. 1B–C View FIGURE 1 ) have fewer setae, which are not obvious. We found that the aedeagus of the holotypes of H. datongensis and H. triangulata ( Figs. 4C View FIGURE 4 , 5C–D View FIGURE 5 ) are the same as the H. valentinae collected from Sichuan Province ( Fig. 2A– E View FIGURE 2 ). The illustration of aedeagus in the description of Chen & Du (2016a, figs. 5–6; 2016b, figs. 15–16) lacks some essential morphological characters. On the other hand, there is no aedeagus description present in the description of Stark & Sivec (2009), which mislead the identification of these species in the past. The female subgenital plate of H. valentinae ( Fig. 3C View FIGURE 3 ) and H. datongensis ( Fig. 4D View FIGURE 4 ) are similar, but the subgenital plate of H. triangulata extends more posteriorly ( Fig. 5E View FIGURE 5 ). This minute morphological difference maybe due to age, environment, or individual differences. Thus, we provide the detailed revised description of the H. valentinae Stark & Sivec (2009) from Sichuan Province with new images illustration, with H. triangulata and H. datongensis placed as new synonyms. Haploperla valentinae is widely distributed from northwestern Sichuan to Qinghai Province ( Fig. 9 View FIGURE 9 ).