identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
EC7D9E2D8A60FFBF1105FD8EFB386F55.text	EC7D9E2D8A60FFBF1105FD8EFB386F55.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Parathyas weichangensis Zhong 2026	<div><p>Parathyas weichangensis Zhong sp. nov.</p><p>urn:lsid:zoobank.org:act: 497657AB-90E8-4560-98CB-F268EAA53622</p><p>Figs 1–3</p><p>Diagnosis</p><p>A 1 smooth, thick and short. Coxae with very few fine setae. Pregenital sclerite extremely large, with a Y-shaped sclerite and anteriorly an arc-shaped ring. Ac-2 and Ac-3 fused into a common sclerite in trapezoidal arrangement. Setae of palp smooth. Legs slender and leg IV relatively long.</p><p>Etymology</p><p>The species is named after the Weichang County, where the holotype was collected.</p><p>Type material</p><p>Holotype P.R. CHINA • ♀; Hebei Province, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=117.1617&amp;materialsCitation.latitude=42.3915" title="Search Plazi for locations around (long 117.1617/lat 42.3915)">Chengde City</a>, Weichang County; 42.3915° N, 117.1617° E; 1488 m a.s.l.; 26 Jun. 2021; Hai-Tao Li leg.; puddle still water; slide no. HB-HY-2021062601; GUGC.</p><p>Paratype P.R. CHINA • 1 ♀; same data as for holotype; slide no. HB-HY-2021062602; GUGC .</p><p>Description</p><p>Female (n = 2)</p><p>Idiosoma elliptical (Fig. 1A–B), red in colour. Integument papillate. Muscle attachment sclerites present. Median eye free in integument, external diameter of frontal ring approximately ½ × as long as eye capsule. Prefrontalia and postfrontalia separated. A 1 smooth, thick and short. O 1 located near anterior idiosoma margin. Dc1 and Dc2 fused to form rounded platelet on each side, Dc3–5 of small size (Figs 1A, 3A). Coxae in four groups, setae on coxae minute and sparse. Anteromedial margin of Cx-I with three setae, anterolateral margin of Cx-I with one seta; lateral margin of Cx-II with two setae; lateral margin of Cx-III with three setae (Fig. 3B). Genital plate with transverse anterior; pregenital sclerite extremely large, with Y-shaped sclerite and anteriorly arc-shaped ring (Fig. 3J); medial margin of genital plate with very small setae, and with longer setae posteriorly. Three pairs of acetabula, arranged more or less in line on each side. Ac-1 lying anterior to anterior margin of genital plate, Ac-2 and Ac-3 fused into common sclerite in trapezoidal arrangement (Fig. 2A). Excretory pore slit-shaped, with large crescent-shaped anterior sclerite, posterior sclerite small, not forming continuous ring, and with knobshaped anterior extension. Setae of palp smooth, dorsal margin of P-I with two setae; P-II with four setae; P-III with one long seta; P-IV with small dorsodistal extension, and with one homomorphic hair-like seta on ventrodistal and dorsodistal ends, respectively; P-V sharp, with two small setae (Figs 2B, 3C). Gnathosoma with short rostrum (Figs 2C, 3E). Chelicera chela serrated (Figs 2D, 3D). Legs slender and leg IV relatively long, with many peg-like setae and without swimming setae (Fig. 3F–I).</p><p>MEASUREMENTS.. Idiosoma length 1650 (1815), width 1313 (1382). ACG 376 (393) in length, 297 (320) in width. PCG 378 (426) in length, 339 (412) in width. Genital field (including pregenital sclerite) 347 (346) in length, 197 (205) in width. Ib-Ap 888 (996). Ib-Gf 211 (275). Dorsal lengths of palp segments: P-I, 56 (62); P-II, 120 (132); P-III, 100 (109); P-IV, 195 (218) (including small distal extension); P-V, 43 (46). Gnathosoma 306 (323) in length. Chelicera length 390 (401). Dorsal lengths of segments of legs I–V: I-L-1, 85 (109); I-L-2, 115 (120); I-L-3, 129 (165); I-L-4, 191 (246); I-L-5, 243 (281); I-L-6, 188 (243) (Fig. 1C); II-L-1, 95 (90); II-L-2, 108 (136); II-L-3, 143 (189); II-L-4, 249 (285); II-L-5, 330 (346); II-L-6, 288 (313) (Fig. 1D); III-L-1, 87 (97); III-L-2, 123 (122); III-L-3, 166 (167); III-L-4, 232 (287); III-L-5, 317 (367); III-L-6, 307 (308) (Fig. 1E); IV-L-1, 198 (249); IV-L-2, 147 (165); IV-L-3, 219 (250); IV-L-4, 398 (456); IV-L-5, 406 (449); IV-L-6, 321 (342) (Fig. 1F).</p><p>Male</p><p>Not collected.</p><p>Remarks</p><p>This new species resembles Parathyas barbigera (K. Viets, 1908) . But there are obvious differences: (1) A 1 smooth, thick and short in the new species, but A 1 plumose, slender and long in P. barbigera (Tuzovskij 2007); (2) setae of P-I–III smooth in the new species, but plumose in P. barbigera (Tuzovskij 2007; Di Sabatino et al. 2010); (3) setae on coxae minute and sparse in the new species, but coxae with numerous setae especially Cx-I and Cx-III in P. barbigera (Tuzovskij 2007); (4) pregenital sclerite extremely large, with a Y-shaped sclerite and anteriorly an arc-shaped ring in the new species, but pregenital sclerite inverted water droplet-shaped in P. barbigera (Tuzovskij 2007); (5) dorsal and ventral plates of small size in the new species, but dorsal and ventral plates rather large, especially in females of P. barbigera (Tuzovskij 2007); (6) excretory pore slit-shaped, with a large crescent-shaped anterior sclerite, posterior sclerite small, not forming a continuous ring in the new species, but excretory pore surrounded by a sclerotized ring in P. barbigera (Tuzovskij 2007; Di Sabatino et al. 2010).</p></div>	https://treatment.plazi.org/id/EC7D9E2D8A60FFBF1105FD8EFB386F55	Public Domain	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.		Plazi	Zhong, Hao;Guo, Jian-Jun;Jin, Dao-Chao;Li, Hai-Tao;Gu, Xin-Yao	Zhong, Hao, Guo, Jian-Jun, Jin, Dao-Chao, Li, Hai-Tao, Gu, Xin-Yao (2026): Description of two new species of the genus Parathyas Lundblad, 1926 (Acari: Hydryphantoidea: Hydryphantidae: Euthyadinae) from China. European Journal of Taxonomy 1034: 259-270, DOI: 10.5852/ejt.2026.1034.3155, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3155/14047
EC7D9E2D8A64FFB3110AFEE3FC026D8E.text	EC7D9E2D8A64FFB3110AFEE3FC026D8E.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Parathyas jinghongensis Zhong 2026	<div><p>Parathyas jinghongensis Zhong sp. nov.</p><p>urn:lsid:zoobank.org:act: 5AF260D0-CB66-417E-83D4-5DBA91AB5162</p><p>Figs 4–7</p><p>Diagnosis</p><p>Median eye large. A 1 smooth, short and thick. Acetabula large, Ac-2 and Ac-3 not fused into a common sclerite at their base. Genital plate narrow. Legs slender and long.</p><p>Etymology</p><p>The species is named after Jinghong City, where the holotype was collected.</p><p>Type material</p><p>Holotype P.R. CHINA • ♂; Yunnan Province, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=101.2157&amp;materialsCitation.latitude=21.9581" title="Search Plazi for locations around (long 101.2157/lat 21.9581)">Jinghong City</a>; 21.9581° N, 101.2157° E; 562 m a.s.l.; 4 Jul. 2023; Ping Li and Lan Jia leg.; stream with gravel (Fig. 4); slide no. YN-HY-2023070401; GUGC.</p><p>Paratype P.R. CHINA • 1 ♂; same data as for holotype; slide no. YN-HY-2023070402; GUGC .</p><p>Description</p><p>Male (n = 2)</p><p>Idiosoma elliptical (Fig. 5A–B). Integument papillate. Median eye large (external diameter of frontal ring approximately ⅔ × as long as eye capsule). Prefrontalia and postfrontalia separated (Figs 5A, 7A). A 1 smooth, short and thick. Dc1 and Dc2 fused to longish platelet on each side. Coxae in four groups, setae on coxae minute and sparse. Cx-I anteromedially with two setae; Cx-II with two setae at lateral margin; lateral margin of Cx-III with two setae (Fig. 7B). Pregenital sclerite distanced from genital field. Genital plate narrow, with longer setae posteriorly. Acetabula large, Ac-2 and Ac-3 near posterior margin of genital plate, Ac-2 located anterior to Ac-3, and not fused into common sclerite at their base, pair of short setae on posterior end of genital plate (Fig. 6A). Excretory pore slit-shaped, with large crescent-shaped anterior sclerite, posterior sclerite small, not forming continuous ring. Dorsal margin of P-I with two setae; P-II with two setae; P-III with one long seta; P-IV with one dorsodistal extension, and with one homomorphic hair-like seta ventrodistally and dorsodistally; P-V with two setae (Figs 6B, 7C). Gnathosoma with short rostrum (Figs 6C, 7E). Chelicera chela serrated (Figs 6D, 7D). Legs slender and long, with many peg-like setae and without swimming setae (Fig. 7F–I).</p><p>MEASUREMENTS .. Idiosoma length 1227 (1198), width 953 (910). ACG 293 (279) in length, 238 (233) in width. PCG 338 (332) in length, 280 (272) in width. Genital field (including pregenital sclerite) 285 (263) in length, 209 (213) in width. Ib-Ap 731 (760). Ib-Gf 188 (179). Dorsal lengths of palp segments: P-I, 55 (53); P-II, 121 (115); P-III, 68 (63); P-IV, 179 (167) (including distal extension); P-V, 46 (41). Gnathosoma 259 (253) in length (Figs 6C, 7E). Chelicera length 338 (337) (Figs 6D, 7D). Dorsal lengths of segments of legs I–IV: I-L-1, 81 (78); I-L-2, 75 (86); I-L-3, 124 (101); I-L-4, 170 (157); I-L-5, 202 (200); I-L-6, 207 (181) (Fig. 5C); II-L-1, 81 (52); II-L-2, 79 (102); II-L-3, 115 (123); II-L-4, 196 (202); II-L-5, 239 (245); II-L-6, 257 (256) (Fig. 5D); III-L-1, 87 (72); III-L-2, 105 (81); III-L-3, 109 (106); III-L-4, 191 (197); III-L-5, 243 (244); III-L-6, 223 (213) (Fig. 5E); IV-L-1, 179 (191); IV-L-2, 106 (112); IV-L-3, 163 (165); IV-L-4, 305 (304); IV-L-5, 310 (307); IV-L-6, 239 (213) (Fig. 5F).</p><p>Female</p><p>Not collected.</p><p>Remarks</p><p>In Parathyas, sexual dimorphism is minimal, males typically exhibit the pregenital sclerite positioned distally from the genital field, while females display this sclerite either near the anterior gonopore edge or distanced similarly to males (Di Sabatino et al. 2010). Therefore, aside from the pregenital sclerite placement, most morphological characteristics remain consistent between sexes.</p><p>From the new species Parathyas jinghongensis Zhong sp. nov. only the male is known, their genital plate has similarities with Parathyas qilianensis Zhong &amp; Guo, 2025, but from the latter species only females are known. Although sex-different P. jinghongensis and P. qilianensis, the comparison in other morphological characteristics is still applicable except for the pregenital sclerite, but there are the following differences (Zhong et al. 2025): (1) median eye large (external diameter of frontal ring approximately ⅔ × as long as the eye capsule) in the new species, but median eye small (external diameter of frontal ring about 3 × as short as length of the eye capsule) in P. qilianensis; (2) acetabula large in the new species, but acetabula small in P. qilianensis; (3) setae on coxae minute and sparse in the new species, but coxae with clearly visible setae, especially Cx-I anteromedially with a pair of long setae in P. qilianensis .</p><p>At present, we identify the species by their morphological characters. In subsequent studies, if we are able to collect more specimens, we will carry out molecular studies.</p></div>	https://treatment.plazi.org/id/EC7D9E2D8A64FFB3110AFEE3FC026D8E	Public Domain	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.		Plazi	Zhong, Hao;Guo, Jian-Jun;Jin, Dao-Chao;Li, Hai-Tao;Gu, Xin-Yao	Zhong, Hao, Guo, Jian-Jun, Jin, Dao-Chao, Li, Hai-Tao, Gu, Xin-Yao (2026): Description of two new species of the genus Parathyas Lundblad, 1926 (Acari: Hydryphantoidea: Hydryphantidae: Euthyadinae) from China. European Journal of Taxonomy 1034: 259-270, DOI: 10.5852/ejt.2026.1034.3155, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3155/14047
