Zapada kondratieffi, Chen, 2022
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publication ID |
https://doi.org/10.11646/zootaxa.5115.4.6 |
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publication LSID |
lsid:zoobank.org:pub:46D7276F-20D1-413B-8BBC-52C47BFDCA7D |
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DOI |
https://doi.org/10.5281/zenodo.6365356 |
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persistent identifier |
https://treatment.plazi.org/id/03C987C8-1E24-0826-FF6A-71BBFCD8B704 |
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Plazi (2022-03-16 08:45:36, last updated 2024-11-29 08:52:11) |
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scientific name |
Zapada kondratieffi |
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sp. nov. |
Zapada kondratieffi View in CoL sp. nov.
Figs. 1–9 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 View FIGURE 8 View FIGURE 9
Type material. Holotype male (ICJUST), Sichuan Province, Xiaojin County, Siguniangshan Town, Siguniang Mountain Scenic Area , an unnamed stream ( Fig. 1A–C View FIGURE 1 ), 30.9336°N, 102.8845°E, alt. 4100 m, 16.VII.2021, Zhi-Teng Chen leg. GoogleMaps Paratype: one male (ICJUST), same data as holotype GoogleMaps .
Etymology. The new species is named after Dr. Boris C. Kondratieff, who has made great contributions to Plecoptera science.
Description. Measurements. Holotype: BL = 6.0 mm; FL = 6.5 mm; HL = 5.0 mm. Paratype: BL = 6.0 mm; FL = 6.0 mm; HL = 5.0 mm.
Head. Head dark ( Figs. 2–3 View FIGURE 2 View FIGURE 3 ); two ocelli pale; compound eyes dark and protruding. Antennae dark brown, subequal in length to body. Mouthparts brown ( Figs 3–4 View FIGURE 3 View FIGURE 4 ), maxillary palp slender, apical segment similar to previous two segments; labial palp strongly shortened ( Fig. 4A View FIGURE 4 ); apical segment oval in shape. Cervix with five identical finger-shaped, simple gills ( Fig. 4A–C View FIGURE 4 ); each lateral cervical sclerite with both inside and outside gills; an extra median gill present between lateral cervical sclerites.
Thorax. Thorax brown ( Fig. 2 View FIGURE 2 ). Pronotum subquadrate, surface brown with dark rugosities, corners obtuse; anterior margin truncate, posterior margin concave. Legs dark brown, distal ends of femur and tibia darker ( Figs. 2–3 View FIGURE 2 View FIGURE 3 ).
Wings. Macropterous ( Figs. 2–3 View FIGURE 2 View FIGURE 3 ), forewing membrane a translucent charcoal-gray, most cells with rounded pale spots; veins brown; margins of wings fringed with short bristles. Hindwings without spots. Both wing pairs with the X-structure typical of the family. In forewings, C strong and setose; h short and stout; Sc subapically nearly touching C, ScP joins RA before ra-rp; single crossvein present between C and Sc besides h; RA slightly curved, terminal costal crossvein joins RA after ra-rp; RP forked shortly after ra-rp; M forked basal to the fork of RP; joint of r-m and M interrupted; four to five crossveins present between M and CuA; six to seven crossveins present between CuA and CuP; CuP ended before half of wing length; cu-a present; AA1 sinuous, AA2 forked near midpoint. In hindwings, C, Sc, RA and RP similar to forewings; M forked distal to the fork of RP; m-cu and the single crossvein between CuA and CuP simple; CuP simple; anal area large and folded with five simple anal veins.
Abdomen. Abdominal segments 1‒7 pale brown, with medially interrupted anterior margins ( Figs. 2–3 View FIGURE 2 View FIGURE 3 ). Tergum 7 with a deep, subtriangular anterior notch ( Fig. 5A View FIGURE 5 ). Terga 8‒10 dark brown ( Fig. 5A–D View FIGURE 5 ), with complete anterior margins. Tergum 9 shortened, with slightly concave anterior margin ( Figs. 5A View FIGURE 5 , 6A View FIGURE 6 ). Tergum 10 strongly sclerotized, with a broad membranous median area ( Figs. 5A–D View FIGURE 5 , 6A–F View FIGURE 6 ), posterior margin protruded medially and fused with two subtriangular lateral sclerites. Cerci reduced into a small rounded knob ( Figs. 5–6 View FIGURE 5 View FIGURE 6 ); inner surface membranous, glabrous and concave; outer surface weakly sclerotized, covered with dense long spines; apex with a membranous circular area and a dark, stout apical spine.
Genitalia. Epiproct elongate-elliptical in both dorsal and ventral views ( Fig. 7 View FIGURE 7 ), extending to the anterior edge of T10, two membranous apical lobes extended posteriad along lateral margins. Median part of dorsal sclerite of epiproct near inverted V-shaped ( Fig. 7A–B View FIGURE 7 ), anteriorly fused with ventral sclerite, posteriorly fused with paired lateral arms; lateral arms of dorsal sclerite directed obliquely and posteroventrally connected by a slender sclerite ( Fig. 7C–D View FIGURE 7 ). Ventral sclerite of epiproct anteriorly fused with dorsal sclerite ( Fig. 7E–F View FIGURE 7 ), gradually widened posteriad ( Fig. 7G–H View FIGURE 7 ), medially with a longitudinal suture which widened posteriad, posterolateral extensions curved anterodorsally. Basal sclerite of epiproct near semicircular in both dorsal and ventral views ( Fig. 7A, B, G, H View FIGURE 7 ), anteriorly with two small fusiform sclerites projecting anterolaterally ( Fig. 7 E–F View FIGURE 7 ), laterally expanded into two hookshaped arms beneath ventral sclerite of epiproct ( Fig. 7E–F View FIGURE 7 ). Vesicle of sternum 9 elliptical ( Fig. 8A–B View FIGURE 8 ), pedicel short and constricted, margins sclerotized; hypoproct broad and elliptical ( Fig. 8A–B View FIGURE 8 ), apex extended posteriad, forming a short median spine. Paraproct simple ( Fig. 8A, C, D View FIGURE 8 ), outer lobe broad, beneath outer margin with an isolated hemispherical knob; inner lobe vestigial, reduced into a small posterior protuberance along inner margin.
Diagnosis. The new species can be easily distinguished from its Nearctic congeners by presence of five simple cervical gills and vestigial inner paraproct lobes ( Baumann 1975, Baumann & Mingo 1987, Grubbs et al. 2015). It is closely related to the Asian Z. quadribranchiata ( Zhiltzova, 1977) by sharing reduced inner paraproct lobes but can be distinguished by the bilobed epiproct apex and absence of Y-shaped structure on ventral epiproct sclerite apart from the unique presence of an extra median cervical gill ( Zhiltzova 1977, Zhiltzova & Teslenko 2001).
Distribution. China: central Sichuan Province ( Fig. 1A View FIGURE 1 ).
Baumann, R. W. (1975) Revision of the stonefly family Nemouridae (Plecoptera): a study of the world fauna at the generic level. Smithsonian Contributions to Zoology, 211, 1 - 74. https: // doi. org / 10.5479 / si. 00810282.211
Baumann, R. W. & Mingo, T. M. (1987) Zapada katahdin, a new stonefly (Plecoptera: Nemouridae) from the Northeast. Journal of the New York Entomological Society, 95 (2), 252 - 257.
Grubbs, S. A., Baumann, R. W. & Sheldon, A. L. (2015) A review of eastern Nearctic Zapada (Plecoptera, Nemouridae) with a new species from the Great Smoky Mountains. Freshwater Science, 34 (4), 1312 - 1323. https: // doi. org / 10.1086 / 683037
Zhiltzova, L. A. (1977) New species of stoneflies (Plecoptera) from Primorye Territory. Trudy Zoologicheskogo Instituta Akademia Nauk, 70, 3 - 9.
Zhiltzova, L. A. & Teslenko, V. A. (2001) Zapada Ricker, 1952 - a genus of Nemourinae (Plecoptera: Nemouridae) new for Asia. Russian Entomological Journal, 10 (2), 125 - 128.
FIGURE 1. Zapada kondratieffi sp. nov., A–B. map of collecting site; C. habitat stream in Siguniang Mountain Scenic Area, Sichuan Province, China.
FIGURE 4. Zapada kondratieffi sp. nov., holotype, A. male head and thorax, ventral view; B–C. details of cervical gills. Abbreviations: mp = maxillary palp; lp = labial palp; cg = cervical gill; cs = cervical sclerite.
FIGURE 5. Zapada kondratieffi sp. nov., holotype, male abdomen before NaOH treatment, A. dorsal view; B. ventral view; C. lateral view; D. caudal view. Abbreviations: T, abdominal tergum; ST, abdominal sternum; ce = cerci; pp = paraproct; ep = epiproct; ve = vesicle; hp = hypoproct.
FIGURE 6. Zapada kondratieffi sp. nov., holotype, male terminalia after NaOH treatment, A. dorsal view; B. detail of tergum 10, dorsal view; C–D. dorsolateral view; E. lateral view; F. caudal view. Abbreviations: T, abdominal tergum; ce = cerci; pp = paraproct; ep = epiproct; ve = vesicle.
FIGURE 7. Zapada kondratieffi sp. nov., holotype, male epiproct, A–B. dorsal view; C–D. caudal view; E–F. lateral view; G– H. ventral view. Abbreviations: ds = dorsal sclerite of epiproct; vs = ventral sclerite of epiproct; bs = basal sclerite of epiproct.
FIGURE 8. Zapada kondratieffi sp. nov., holotype, A. male terminalia after NaOH treatment, ventral view; B. detail of sternum 10, ventral view; C. male right paraproct, ventral view; D. male right paraproct, ventral view. Abbreviations: ST, abdominal sternum; ce = cerci; pp = paraproct; ep = epiproct; ve = vesicle; hp = hypoproct; ppok, outer knob of paraproct; ppip, inner protuberance of paraproct.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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