taxonID	type	description	language	source
03BF9858FFE06E4EDCE0FC5B48E683D2.taxon	description	(Figs. 1 – 4)	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE06E4EDCE0FC5B48E683D2.taxon	materials_examined	Material examined. Holotype male, No. JL-TO- 20190701, Songhuajiangsanhu National Nature Reserve (LJAE ỨĀOiDZğȐŊ ṂṚṔṈ), Jilin Province, P. R. China (42 ° 22 ′ 54 ′′ N, 127 ° 9 ′ 36 ′′ E, 617 m a. s. l.), collected by Zhuhui Ding and Caiyun Li, 29 - VII- 2019. Paratype: 1 / 1 / 0, No. JL-TO- 20190702, JL-TO- 20190703, same data as holotype.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE06E4EDCE0FC5B48E683D2.taxon	diagnosis	Diagnosis. Dorsal plate arrangement: 2 + 2 p + 1; infracapitular bay U-shaped; V 1 anterior to V 2, V 2 almost at the same level of Ap; P- 4 with three ventral extensions, with one long setae on each; rostrum short (<1 / 2 of gnathosoma dL).	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE06E4EDCE0FC5B48E683D2.taxon	description	Description. Male (n = 2): Idiosoma elliptical, L 748 (764), W 503 (506), L / W ratio 1.5 (1.5). Dorsal plate arrangement: 2 + 2 p + 1 (Fig. 1 A); dorsal shied L 617 (630), W 466 (467), dorsal plate L 589 (593), frontal platelets L 137 (135), W 51 (48), shoulder platelets W 79 (63). Infracapitular bay U-shaped, L 145 (148); Cx-I L 286 (269), mL 116 (124), Cx-II + III mL 96 (95); Gf L 172 (172), W 123 (122); E 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. 1 B). Gnathosoma: dL 236 (256), vL 303 (301); rostrum and dorsal apodeme short, ventral apodeme slender; chelicera bs L 337 (338), claw L 40 (36), (Fig. 1 D). Palp (Fig. 1 C): P- 1 long, with one dorsodistal seta; P- 2 with three dorsal setae, and one ventral seta at the base of ventral projection; P- 3 with two short and one long dorsal setae, and one ventral seta at the base of ventral projection; P- 4 with three dorsal setae and three ventral extensions, with one long setae on each. L of palp segments: P- 1, 48 (41); P- 2, 103 (102); P- 3, 67 (55); P- 4, 85 (81); P- 5, 17 (16). Legs (Fig. 2 A – E): L of leg segments: I-L- 1 – 6: 49 (54), 95 (98), 85 (84), 100 (103), 109 (108), 105 (116); II-L- 1 – 6: 51 (57), 96 (83), 81 (81), 101 (98), 115 (118), 139 (136); III-L- 1 – 6: 70 (72), 85 (73), 88 (88), 117 (114), 127 (136), 156 (157); IV-L- 1 – 6: 116 (115), 123 (95), 120 (119), 154 (157), 183 (180), 169 (172). Ejaculatory complex (Fig. 2 F), L 218 (223), aL 163 (167). Female (n = 1). Body features same as the male except: E 4 at the same level as the 5 th pair of acetabulaand P- 3 with three short dorsal setae. Idiosoma L 870, W 587, L / W ratio 1.5 (Fig. 3 B). Dorsal shied L 718, W 535, dorsal plate L 661, frontal platelets L 143, W 61, shoulder platelets W 48. Infracapitular bay L 181; Cx-I L 327, mL 143, Cx-II + III mL 60; Gf L 183, W 159; distance between Gf and Ap 205. Gnathosoma dL 254, vL 345; chelicera bs L 387, claw L 41. L of palp segments: P- 1, 43; P- 2, 112; P- 3, 65; P- 4, 97; P- 5, 17. Legs (Fig. 4): L of leg segments: I-L- 1 – 6: 71, 102, 89, 105, 110, 98; II-L- 1 – 6: 60, 107, 83, 116, 129, 145; III-L- 1 – 6: 73, 110, 94, 131, 161, 169; IV- L- 1 – 6: 123, 121, 133, 170, 203, 199. Habitat. Streamlet, about 8 m wide, 0.3 – 0.5 m depth, with many small stones at the bottom; water is cold.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE06E4EDCE0FC5B48E683D2.taxon	discussion	Remarks. Due to the shape of infracapitulum, chelicera, and P- 4 stocky and relatively shorter, Torrenticola triextensio sp. nov. closely resembles T. taiwanicus Pešić, Semenchenko, Chatterjee, Yam, Chan, 2011 (Pešić et al. 2011). The new species differs from T. taiwanicus, in: (1) P- 4 with three extensions in this new species, but without in T. taiwanicus; (2) P- 3 distal margin without denticles in this new species, but with denticles in T. taiwanicus; (3) dorsal plate arrangement 2 + 2 p + 1 in this new species, but 2 + 1 in T. taiwanicus.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE06E4EDCE0FC5B48E683D2.taxon	etymology	Etymology. The specific name, triextensio, is from Latin words: “ triplex ” (we used tri -) and “ extensio ”, referring to this species has three ventral extensions on P- 4; used as a noun in apposition.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE06E4EDCE0FC5B48E683D2.taxon	distribution	Distribution. China (Jilin).	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE46E44DCE0F96648E683F1.taxon	description	(Figs. 5 – 6)	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE46E44DCE0F96648E683F1.taxon	materials_examined	Material examined. Holotype female, No. JL-TO- 20190704, Songhuajiangsanhu National Nature Reserve (LJAE ỨĀOiDZğȐŊ ṂṚṔṈ), Jilin Province, P. R. China (42 ° 32 ′ 34 ′′ N, 127 ° 38 ′ 12 ′′ E, 713 m a. s. l.), collected by Zhuhui Ding and Caiyun Li, 30 - VII- 2019. Paratype: 0 / 1 / 0, No. JL-TO- 20190705, same data as holotype.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE46E44DCE0F96648E683F1.taxon	diagnosis	Diagnosis. Dorsal plate arrangement: 2 + 2 p + 1; E 4 on the same line with the 6 th pair of acetabula; V 1 anterior to V 2, Ap between V 2 and V 1; the posterior margin of gnathosoma straight; rostrum short and straight, dorsal apodeme short, ventral apodeme long and sharp.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE46E44DCE0F96648E683F1.taxon	description	Description. Female (n = 2): Idiosoma elliptical, L 774 (730), W 556 (519), L / W ratio 1.4 (1.4). Dorsal plate arrangement: 2 + 2 p + 1 (Fig. 5 A), the posterior half of the dorsal plate reddish; dorsal shied L 639 (614), W 484 (461), dorsal plate L 593 (566), frontal platelets L 138 (132), W 63 (58), shoulder platelets W 73 (45). Infracapitular bay U-shaped, L 163 (156); Cx-I L 270 (268), mL 106 (110), Cx-II + III mL 61 (45); Gf L 176 (159), W 158 (145); E 4 on the same line with the 6 th pair of acetabula; V 1 anterior to V 2, Ap between V 2 and V 1; distance between Gf and Ap 170 (178). Gnathosoma: dL 214 (212), vL 299 (281), posterior margin straight; rostrum short and straight, dorsal apodeme short, ventral apodeme long and sharp; chelicera bs L 329 (305), claw L 33 (35) (Fig. 5 D). Palp (Fig. 5 C): P- 1 short, with one long dorsodistal seta; P- 2 long and wide, with three dorsal setae and one ventral extension, one short seta laterally at the base of the extension; P- 3 with one long dorsal seta, and one short seta on the ventral prolongation; P- 4 with one short dorsal seta and one small ventral extension, on which with one long and two short setae. L of palp segments: P- 1, 35 (32); P- 2, 96 (98); P- 3, 59 (54); P- 4, 95 (87); P- 5, 20 (18). Legs (Fig. 6): L of leg segments: I-L- 1 – 6: 49 (41), 83 (85), 78 (72), 93 (81), 105 (96), 89 (98); II-L- 1 – 6:, 50 (55), 97 (87), 72 (67), 93 (88), 114 (106), 98 (114); III-L- 1 – 6: 55 (-), 96 (98), 83 (79), 115 (109), 129 (125), 137 (131); IV-L- 1 – 6: 99 (106), 124 (95), 121 (109), 144 (139), 155 (142), 164 (130). Male. Unknown. Habitat. Streamlet, about 4 m wide, 0.3 – 0.5 m depth, with many small stones at the bottom and opulent sunlight; water is cold.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE46E44DCE0F96648E683F1.taxon	discussion	Remarks. This new species is distinguished by the straight posterior margin of gnathosoma. Due to this characters, this new species resembles Torrenticola bomiensis Cook, 1966 (Pešić & Smit 2014). The new species differs from T. bomiensis in: (1) the posterior half of the dorsal plate reddish in this new species, but without obvious color on the dorsal palte in T. bomiensis; (2) dorsal plate arrangement 2 + 2 p + 1 in this new species, but 4 + 1 in T. bomiensis; (3) the extension of P- 2, 3 sharp and smooth in this new species, but blunt and serrated in T. bomiensis. In addition, Torrenticola songhuaensis is similar to Torrenticola triextensio in the shape of dorsal plate and gnathosoma. But two species have obvious differences in: (1) P- 4 with three ventral extensions in T. triextensio, and with two in T. songhuaensis; (2) T. triextensio is with no obvious color on the dorsal palte, but the posterior half of the dorsal plate reddish in T. songhuaensis; (3) the posterior margin of gnathosoma pitched in T. triextensio, straight (perpendicular to ventral apodeme) in T. songhuaensis; (4) the ventral extensions of P- 2, 3 in T. triextensio is stouter than T. songhuaensis.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE46E44DCE0F96648E683F1.taxon	etymology	Etymology. This new species is named after the place (Songhua River), where the new species was collected.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE46E44DCE0F96648E683F1.taxon	distribution	Distribution. China (Jilin).	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE96E46DCE0FE0B48E681D5.taxon	description	(Figs. 7 – 8)	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE96E46DCE0FE0B48E681D5.taxon	materials_examined	Material examined. Holotype male, No. JL-TO- 20190706, Changbaishan National Nature Reserve KHƜOi Ẏ ȐŊ ṂṚṔṈ), Jilin Province, P. R. China (42 ° 24 ′ 19 ′′ N, 128 ° 17 ′ 38 ′′ E, 721 m a. s. l.), collected by Zhuhui Ding and Caiyun Li, 30 - VII- 2019. Paratype: 3 / 0 / 0, No. JL-TO- 20190707 – JL-TO- 20190709, same data as holotype.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE96E46DCE0FE0B48E681D5.taxon	diagnosis	Diagnosis. Dorsal plate arrangement: 2 + 2 p + 1 (Fig. 7 A); E 4 on the same line with the 3 rd pair of acetabula; infracapitular bay U-shaped; V 1 anterior to V 2, V 2 almost at the same level of Ap; P- 4 with one small dorsal seta and two developed ventral extensions, with one long and one short setae on each.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE96E46DCE0FE0B48E681D5.taxon	description	Description. Male (n = 4): Idiosoma elliptical (Fig. 7 B), L 666 (649 – 675), W 459 (459 – 505), L / W ratio 1.5 (1.3 – 1.5). Dorsal plate arrangement: 2 + 2 p + 1 (Fig. 7 A), dorsal shied L 544 (519 – 563), W 422 (403 – 432), dorsal plate L 504 (483 – 512), frontal platelets L 132 (132 – 153), W 57 (47 – 57), shoulder platelets W 68 (46 – 69). Infraca- pitular bay U-shaped, L 142 (137 – 142); Cx-I L 255 (247 – 258), mL 115 (111 – 117), Cx-II + III mL 95 (94 – 101); Gf L 168 (155 – 168), W 128 (117 – 129), E 4 on the same line with the 3 rd pair of acetabula; distance between Gf and Ap 97 (88 – 97); V 1 anterior to V 2, V 2 almost at the same level of Ap (Fig. 7 B). Gnathosoma dL 206 (205 – 212), vL 275 (258 – 275); rostrum short (<1 / 2 of gnathosoma dL), dorsal apodemeshort, ventral apodeme slender and craved to dorsum; chelicera bs L 291 (288 – 291), claw L 31 (30 – 33). Palp (Fig. 7 C): P- 1 short, with one dorsodistal seta; P- 2 with three dorsal setae, and one ventral seta on the ventral extension; P- 3 with two dorsal setae and one long ventral seta on the extension; P- 4 with one small dorsal seta, one long and one short ventral setae on two ventral extensions respectively. L of palp segments: P- 1, 32 (31 – 36); P- 2, 91 (87 – 93); P- 3, 58 (46 – 58); P- 4, 87 (87 – 93); P- 5, 17 (14 – 18). Legs (Fig. 8 B-F): L of leg segments: I-L- 1 – 6: 45 (44 – 54), 86 (78 – 86), 76 (72 – 78), 94 (84 – 94), 99 (82 – 99), 91 (91 – 93); II-L- 1 – 6: 48 (48 – 62), 82 (81 – 88), 69 (69 – 72), 89 (84 – 89), 100 (100 – 108), 106 (106 – 115); III-L- 1 – 6: 48 (44 – 49), 96 (86 – 96), 91 (91 – 110), 113 (101 – 113), 127 (122 – 128), 124 (124 – 132); IV-L- 1 – 6: 100 (100 – 104), 115 (96 – 115), 110 (110 – 112), 138 (136 – 138), 140 (139 – 156), 134 (134 – 154). Ejaculatory complex (Fig. 8 A) L 223 (223 – 280), aL 156 (150 – 157). Female. Unknown. Habitat. River, about 8 m wide, 1 m depth; water is cold and torrential. The river is about 15 m away from the highway.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE96E46DCE0FE0B48E681D5.taxon	discussion	Remarks. The new species is characterized by dorsal plate arrangement 2 + 2 p + 1; E 4 on the same line with the 3 rd pair of acetabula; P- 4 with two developed ventral extensions; dorsal apodeme short, ventral apodeme slender and craved to dorsum. This species can be easily distinguished from other species by those characteristics.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE96E46DCE0FE0B48E681D5.taxon	etymology	Etymology. This new species is named after the place (Changbai Mountain), where the new species was collected.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFE96E46DCE0FE0B48E681D5.taxon	distribution	Distribution. China (Jilin).	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFEB6E47DCE0FC2F48E68315.taxon	description	(Figs. 9 – 10)	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFEB6E47DCE0FC2F48E68315.taxon	materials_examined	Material examined. Holotype male, No. JL-TO- 20190710, Songhuajiangsanhu National Nature Reserve (LJAE ỨĀOiDZğȐŊ ṂṚṔṈ), Jilin Province, P. R. China (42 ° 32 ′ 34 ′′ N, 127 ° 38 ′ 12 ′′ E, 713 m a. s. l.), collected by Zhuhui Ding and Caiyun Li, 30 - VII- 2019. Paratype: 1 / 0 / 0, No. JL-TO- 20190711, same data as holotype.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFEB6E47DCE0FC2F48E68315.taxon	diagnosis	Diagnosis. Dorsal plate arrangement: 2 + 2 p + 1; E 4 on the same line with the 2 nd pair of acetabula; gnathosoma rostrum tapering and sharp, dorsal apodeme short, ventral apodeme long; P- 2 wide, with four dorsal setae and one ventral seta on the ventral extension.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFEB6E47DCE0FC2F48E68315.taxon	description	Description. Male (n = 2): Idiosoma elliptical, L 616 (611), W 415 (424), L / W ratio 1.5 (1.4). Dorsal plate arrangement: 2 + 2 p + 1 (Fig. 9 A), dorsal shied L 492 (504), W 352 (378), dorsal plate L 452 (474), frontal platelets L 115 (115), W 43 (39), shoulder platelets W 60 (49). Infracapitular bay U-shaped, L 129 (132); Cx-I L 230 (238), mL 102 (108), Cx-II + III mL 106 (96); Gf L 154 (156), W 117 (131); E 4 on the same line with the 2 nd pair of acetabula; Ap slightly posterior to V 2; distance between Gf and Ap 82 (79). Gnathosoma dL 200 (193), vL 262 (247); rostrum tapering and sharp, dorsal apodeme short, ventral apodeme long; chelicera bs L 265 (271), claw L 26 (28). Palp (Fig. 9 C): P- 1 short, with one dorsodistal seta; P- 2 wide, with four dorsal setae and one ventral seta on the ventral extension; P- 3 with three dorsal setae, and one long ventral seta on the ventral prolongation; P- 4 with one dorsal seta and two small dorsodistal setae, one ventral extension, on which with one long and two short setae. L of palp segments: P- 1, 37 (24); P- 2, 85 (83); P- 3, 52 (48); P- 4, 84 (78); P- 5, 19 (15). Legs (Fig. 10 A – E): L of leg segments: I-L- 1 – 6: 44 (57), 81 (80), 80 (68), 91 (82), 94 (93), 84 (89); II-L- 1 – 6: 39 (41), 77 (82), 69 (66), 81 (84), 101 (98), 103 (106); III-L- 1 – 6: 41 (-), 88 (87), 79 (71), 105 (99), 121 (119), 121 (128); IV-L- 1 – 6: 101 (88), 111 (85), 112 (106), 137 (129), 147 (150), 142 (149). Ejaculatory complex (Fig. 10 F) L 183 (188), aL 135 (139). Female. Unknown. Habitat. Streamlet, about 4 m wide, 0.3 – 0.5 m depth, with many small stones at the bottom and opulent sunlight; water is cold.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFEB6E47DCE0FC2F48E68315.taxon	discussion	Remarks. The present species is similar to T. semicolor K. O. Viets, 1977, in having elongated-oval dorsal shield, a short and compact P- 3; elongated Cx-I, rounded tips; and a slender rostrum (K. O. Viets, 1977; Goldschmidt 2007). The new species differs from T. semicolor in several characters: (1) Ap away from the line of primary sclero- tization in this new species, but fused together in T. semicolor; (2) E 4 on the same line with the 2 nd pair of acetabula in this new species, but with the 4 th one in T. semicolor; (3) dorsal plate arrangement 2 + 2 p + 1 in this new species, but 4 + 1 in T. semicolor.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFEB6E47DCE0FC2F48E68315.taxon	etymology	Etymology. The specific name is from Latin words: “ acris ” which means sharp and “ rostrum ”, referring to the rostrum tapering and sharp; used as a noun in apposition.	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
03BF9858FFEB6E47DCE0FC2F48E68315.taxon	distribution	Distribution. China (Jilin).	en	Gu, Xinyao, Jia, Lan, Jin, Daochao, Guo, Jianjun (2020): Four new species of Torrenticola (Acari, Hydrachnidia, Torrenticolidae) from Northeastern China. Zootaxa 4779 (2): 245-259, DOI: 10.11646/zootaxa.4779.2.6
