Torrenticola multiserrater Gu & Guo, 2023
publication ID |
https://doi.org/ 10.11646/zootaxa.5257.1.10 |
publication LSID |
lsid:zoobank.org:pub:0C91F485-5AD2-432B-8C1D-1ACF9F13D88E |
DOI |
https://doi.org/10.5281/zenodo.7765687 |
persistent identifier |
https://treatment.plazi.org/id/9F5F521A-4E00-FFC7-FF39-FB8FA11CE363 |
treatment provided by |
Plazi (2023-03-24 07:30:29, last updated 2024-11-29 17:07:23) |
scientific name |
Torrenticola multiserrater Gu & Guo |
status |
sp. nov. |
Torrenticola multiserrater Gu & Guo sp. nov. ( Figures 1–4 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 )
Type Materials. Holotype male: No. CQ-TO-2022081101, China, Chongqing, Wuxi County, Yintiaoling National Nature Reserve, Linkouzi (31°28′35′′N, 109°53′18′′E, 1250 m a.s.l.), collected by Yuhao Zhang, 11-VIII-2022 GoogleMaps . Paratypes: 1/3/0, No. CQ-TO-2022081102 –CQ-TO-2022081105, same data as holotype.
Diagnosis. Dorsal plate arrangement: 4+1; P-2 with five dorsal setae, a jagged serrated extension on ventrum, and one ventral seta at the base of ventral extension; P-3 with an obvious serrated terminal-margin, one serrated ventral extension, and three dorsal and one ventral setae.
Description. Male (n = 2): Idiosoma elliptical, L 733 (730), W 442 (432), L/W ratio 1.66 (1.69). Dorsal plate arrangement: 4+1 ( Fig. 1A View FIGURE 1 ); dorsal shied L 598 (576), W 392 (385), dorsal plate L 532 (519), frontal platelets L 150 (122), W 60 (65), shoulder platelets L 180 (177), W 70 (70). Infracapitular bay V-shaped, L 121 (117); Cx-I L 246 (235), mL 126 (120), Cx-II+III mL 117 (127); genital field elliptical, L 138 (129), W 101 (97); C 4 at the same level as the 4 th pair of acetabula; V 1 anterior to V 2, V 2 almost at the same level of Ap ( Fig. 1B View FIGURE 1 ). Gnathosoma: dL 218 (225), vL 299 (305); rostrum long and dorsal apodeme short and blunt, ventral apodeme long and blunt; chelicera bs L 302 (301), claw L 43 (44) ( Fig. 1D View FIGURE 1 ). Palp ( Fig. 1C View FIGURE 1 ): P-1 short, with one dorsodistal seta; P-2 with five dorsal setae, and one ventral seta at the base of a jagged serrated extension; P-3 with an obvious serrated terminal-margin, one serrated ventral extension, and three dorsal and one ventral setae; P-4 with one thin dorsal seta and three ventral setae on two ventral extensions. L of palp segments: P-1, 31 (28); P-2, 78 (79); P-3, 52 (55); P-4, 115 (101); P-5, 14 (13). Legs ( Fig. 2 View FIGURE 2 ): L of leg segments: I-L-1–6: 30 (29), 54 (59), 62 (63), 71 (73), 85 (92), 86 (93); II-L-1–6: 28 (30), 70 (78), 54 (59), 69 (74), 78 (80), 67 (86); III-L-1–6: 34 (37), 82 (81), 57 (58), 79 (82), 92 (99), 92 (100); IV-L-1–6: 88 (91), 97 (94), 88 (98), 110 (120), 121 (128), 110 (114). Ejaculatory complex ( Fig. 1E View FIGURE 1 ), L 158 (148), aL 105 (-).
Female (n = 3). Body features same as the male except genital field pentagonal ( Fig. 3B View FIGURE 3 ). Idiosoma L 753 (725–753), W 464 (449–464), L/W ratio 1.6 (1.61–1.62). Dorsal shield L 607 (600–607), W 399 (399–409), L/W ratio 1.5 (1.48–1.52); dorsal plate L 543 (534–543), frontal platelets L 134 (134–148), W 53 (53–61), L/W ratio 2.5 (2.4–2.5). Infracapitular bay depth 132 (124–132); Cx-I L 258 (254–258), mL 123 (123–129), Cx-II + III mL 97 (97–103). Genital field L 156 (156–157), W 138 (138–140), L/W ratio 1.11 (1.11–1.13); distance between genital field and Ap 175 (164–175). Gnathosoma vL 323 (297–323), dL 231 (231–268), chelicera bs L 315 (315–335), claw L 45 (40–45). L of palp: P-1, 30 (30–32); P-2, 83 (81–83); P-3, 53 (53–58); P-4, 93 (88–93); P-5, 14 (13–14). L of leg segments: I-L-1–6: 32 (32–34), 76 (76–81), 62 (62–65), 76 (76–79), 86 (87–96), 87 (87–97); II-L-1–6: 31 (31–34), 76 (75–76), 59 (59–60), 69 (69–72), 80 (80–85), 84 (84–85); III-L-1–6: 35 (32–35), 86 (67–86), 59 (59–61), 87 (84–87), 98 (94–98), 88 (88–94); IV-L-1–6: 90 (90–97), 101 (97–101), 96 (96–101), 120 (117–120), 129 (123–129), 104 (104–116).
Habitat. Streamlet, about 0.3–0.5 m in depth, with many small stones at the bottom.
Remarks. Plap with serrated ventral extensions was also found in a small number of torrenticolid mites, such as T. dentifera Wiles, 1991 ( Gu et al. 2020b), T. dentipalpis Jin, 1997 ( Jin 1997) , T. alargada Goldschmidt, 2007 ( Goldschmidt 2007) and T. turkestanica (Sokolow, 1926) ( Pešić & Smit 2009) . However, the aforementioned torrenticolid mites only have a regular (rod-shaped or rectangular) ventral extension on P-2. T. multiserrater Gu & Guo sp. nov., can be distinguished from other members of the genus by P-2 with a jagged serrated extension on ventrum, which like a flower cluster or coral, and one ventral seta at the base of ventral extension; P-3 with an obvious serrated terminal-margin, one serrated ventral extension, and three dorsal setae and one ventral seta ( Figs. 1C View FIGURE 1 , 3C View FIGURE 3 ).
Etymology. The specific name, multiserrater , is a combination from the Latin words: “ multi- ” and “ serrated ”, referring to this species having multiple serrated extensions, forming a jagged serrated extension on ventrum ( Figs. 1C View FIGURE 1 , 3C View FIGURE 3 ); used as a noun in apposition.
Distribution. Known only on the type locality (Wuxi, Chongqing of China).
Goldschmidt, T. (2007) Studies on Latin American water mites of the genus Torrenticola Piersig, 1896 (Torrenticolidae, Hydrachnidia, Acari). Zoological Journal of the Linnean Society, 150, 443 - 678. https: // doi. org / 10.1111 / j. 1096 - 3642.2007.00305. x
Gu, X. Y., Jin, D. C. & Guo J. J. (2020 b) Three new species and one new record of Torrenticolidae (Acari, Hydrachnidia) from Wuyishan with an updated key for Chinese fauna. European Journal of Taxonomy, 625, 1 - 23. https: // doi. org / 10.5852 / ejt. 2020.625
Jin, D. C. (1997) Hydrachnellae-morphology systematics a primary study of Chinese fauna. Science and Technology Publishing House, Guiyang, 356 pp. [in Chinese]
Pesic, V. & Smit, H. (2009) Water mites of the family Torrenticolidae Piersig, 1902 (Acari: Hydrachnidia) from Thailand, Part I. The genera Torrenticola Piersig, 1896, Neoatractides Lundblad, 1941 and Pseudotorrenticola Walter, 1906. Zootaxa, 1982 (1), 38 - 62. https: // doi. org / 10.11646 / zootaxa. 1982.1.2
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