taxonID	type	description	language	source
0396878D4426FFC7DFCE3BD6FE37F84D.taxon	materials_examined	Material examined. Holotype. Female, encountered in decomposing leaf litter, Xinping County (2159 m a. s. l., N 23 ° 57 ′ 15 ″, E 101 ° 30 ′ 41 ″), Yuxi City, Yunnan Province, China, June 19, 2022. Paratype. One female, encountered in decomposing leaf litter, Shiyun Township (652 m a. s. l., N 19 ° 3 ′ 2 ″, E 109 ° 33 ′ 49 ″), Qiongzhong Li Autonomous County, Hainan Province, China, March 22, 2022. Type material deposition. The holotype and paratype are deposited in the Institute of Entomology, Guizhou University, Guiyang, China (GUGC).	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4426FFC7DFCE3BD6FE37F84D.taxon	diagnosis	Diagnosis. Female. Dorsal setae z 2, s 6, r 2, R 1, R 2 and R 3 simple; opisthogastric shield bearing ten pairs of simple setae; opisthogastric soft cuticle with seven pairs of setae, two pairs pilose; gnathotectum emerging from base with small teeth and central prong longer than lateral ones; setae h 3 and pcx pilose.	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4426FFC7DFCE3BD6FE37F84D.taxon	description	Description Female (n = 2; Figures 1 – 11). Idiosoma well sclerotised, length 870 – 901, width 614 – 652. Dorsal idiosoma (Figure 1). Dorsum covered by reticulated podonotal and opisthonotal shields. Podonotal shield bearing 22 pairs of setae, setae z 1, z 2, s 1, s 2, s 6, r 2, r 4, r 5 simple, others pilose. Opisthonotal shield bearing 25 pairs of setae, the R series setae shorter than the J, Z and S series, and setae R 1, R 2, R 3 simple, others pilose. Seta r 6 fine and off shield. Length of dorsal setae: j 1 83 – 86, j 2 102 – 103, j 3 107 – 109, j 4 97 – 100, j 5 62 – 65, j 6 65 – 68, z 1 40 – 44, z 2 60 – 64, z 3 90 – 93, z 4 95 – 97, z 5 83 – 85, z 6 65 – 66, s 1 14 – 17, s 2 13 – 15, s 3 90 – 92, s 4 90 – 93, s 5 85 – 88, s 6 38 – 40, r 2 70 – 73, r 3 161 – 167, r 4 20 – 24, r 5 22 – 25, r 6 24 – 26, J 1 66 – 68, J 2 62 – 64, J 3 65 – 68, J 4 56 – 58, J 5 66 – 68, J 6 68 – 70, J 7 65 – 68, Z 1 84 – 87, Z 2 76 – 78, Z 3 68 – 71, Z 4 68 – 70, Z 5 55 – 57, Z 6 52 – 55, S 1 74 – 76, S 2 66 – 68, S 3 53 – 55, S 4 48 – 51, S 5 53 – 57, S 6 48 – 50, R 1 42 – 45, R 2 40 – 43, R 3 44 – 46, R 4 47 – 49, R 5 48 – 50, RX 44 – 46. Ventral idiosoma (Figure 2). Tritosternum flanked by two pairs of presternal platelets close to each other. Sternal shield reticulated and bearing three pairs of setae (st 1 – st 3) and two pairs of poroids (iv 1 – iv 2). Metasternal shield, bearing seta st 4 and poroids iv 3, separated from sternal and epigynal shields. Epigynal shields, bearing setae st 5, separated from opisthogastric shield. Endogynium lingulate, with symmetric horn-like protrusions at the anterolateral aspects and an inverted U-shaped structure accompanied by two posterior protrusions within the central region (Figure 3). Opisthogastric shield bearing ten pairs of ventral setae, setae ZV 1 and SV 1 fine. Opisthogastric soft cuticle with seven pairs of setae, two pairs pilose and longer than others. Peritrematal groove length 384 – 401. Lengths of setae on ventral shields: st 1 82 – 85, st 2 60 – 63, st 3 60 – 63, st 4 66 – 67, st 5 51 – 52, JV 1 49 – 52, JV 2 57 – 59, JV 3 55 – 56, JV 4 60 – 64, ZV 1 19 – 22, ZV 2 43 – 45, ZV 3 54 – 57, ZV 4 46 – 48, SV 1 19 – 21, SV 2 33 – 36, pa 18 – 20, po 27 – 30. Gnathosoma (Figures 4 – 7). Gnathotectum emerging from base with three to five small teeth on each side and anterior margin with three prongs, a number of small denticles basally between them; prongs apically sharp, central prong longer than lateral ones (Figure 4). Fixed and movable digits of chelicera with several small teeth (Figure 5). Deutosternal groove with 12 denticulate rows; setae h 1 (102 – 107) and h 2 (86 – 89) simple, h 3 (82 – 86) and pcx (90 – 93) slightly pilose (Figure 6). Palp length 436 – 451; seta v 2 on palptrochanter shorter than v 1; seta al on palpfemur pectinate, d 3 distally pilose; al 1 and al 2 on palpfemur rod-like, others simple (Figure 7). Legs (Figures 8 – 11). Lengths of legs: I 942 – 992, II 765 – 793, III 725 – 756, IV 989 – 1098. Leg I thinner than other legs. Setae av 1, al 1, pv 1 and pl 1 on tarsi II – IV modified to short and thick spurs. Most leg setae simple. Other stages. Unknown.	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4426FFC7DFCE3BD6FE37F84D.taxon	etymology	Etymology. The name of this new species, Cerogamasus cornutus, derives from its endogynium with two pairs of horned and prominent processes.	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4426FFC7DFCE3BD6FE37F84D.taxon	diagnosis	Differential diagnosis. The newly described species is morphologically similar to C. tibetensis in the number of setae on the opisthogastric shield and deutosternal groove and the shape of seta r 6. However, the female of C. cornutus sp. nov. differs from C. tibetensis as follows: (1) dorsal setae z 2, r 2, R 1, R 2 and R 3 simple, vs. pilose in C. tibetensis; (2) all setae on opisthogastric shield simple, vs. a pair of pilose setae in C. tibetensis; (3) setae h 3 and pcx pilose, vs. simple in C. tibetensis; (4) gnathotectum emerging from base with small teeth and central prong approximately three times longer than lateral prongs, vs. nude base and central prong and lateral prongs equal in length in C. tibetensis.	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4426FFCDDFCE3B3EFA38FB79.taxon	type_taxon	Type species: Cerogamasus tibetensis Jin & Yao, 2024	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4426FFCDDFCE3B3EFA38FB79.taxon	diagnosis	Diagnosis of genus. The diagnosis of Cerogamasus used here is based on that of Yao et al. 2024.	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4422FFCDDFCE3C89FE37FD65.taxon	materials_examined	Material examined. Holotype. Female, encountered in decomposing leaf litter, Shiyun Township (652 m a. s. l., N 19 ° 3 ′ 2 ″, E 109 ° 33 ′ 49 ″), Qiongzhong Li Autonomous County, Hainan Province, China, March 22, 2022. Paratype. two females with the same details as holotype. Type material deposition. The holotype and paratype are deposited in the Institute of Entomology, Guizhou University, Guiyang, China (GUGC).	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4422FFCDDFCE3C89FE37FD65.taxon	diagnosis	Diagnosis. Female. Dorsal setae z 2 and s 6 simple, r 2, R 1, R 2 and R 3 pilose; opisthogastric shield bearing ten pairs of setae, two pairs (JV 4, ZV 4) pilose; opisthogastric soft cuticle with five pairs of pilose setae; gnathotectum emerging from base with small teeth and central prong longer than lateral ones; seta pcx pilose.	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4422FFCDDFCE3C89FE37FD65.taxon	description	Description Female (n = 3; Figures 12 – 22). Idiosoma well sclerotised, length 779 – 799, width 539 – 556. Dorsal idiosoma (Figure 12). Dorsum covered by reticulated podonotal and opisthonotal shields. Podonotal shield bearing 22 pairs of setae, setae z 1, z 2, s 1, s 2, s 6, r 4, r 5 fine and simple, j 1, j 2, j 3, r 2 slightly pilose and others pilose. Opisthonotal shield bearing 24 pairs of pilose setae, the R series setae shorter than the J, Z and S series. Seta r 6 fine and off shield. Length of dorsal setae: j 1 74 – 78, j 2 75 – 78, j 3 74 – 76, j 4 69 – 72, j 5 55 – 58, j 6 51 – 53, z 1 23 – 25, z 2 47 – 50, z 3 65 – 68, z 4 59 – 63, z 5 71 – 73, z 6 54 – 56, s 1 20 – 23, s 2 19 – 20, s 3 60 – 62, s 4 66 – 68, s 5 66 – 68, s 6 35 – 37, r 2 59 – 63, r 3 140 – 147, r 4 15 – 17, r 5 24 – 27, r 6 22 – 26, J 1 56 – 58, J 2 49 – 51, J 3 48 – 51, J 4 49 – 52, J 5 43 – 45, J 6 40 – 43, Z 1 58 – 61, Z 2 57 – 60, Z 3 50 – 51, Z 4 48 – 50, Z 5 38 – 42, Z 6 44 – 46, S 1 50 – 53, S 2 54 – 56, S 3 45 – 47, S 4 43 – 46, S 5 37 – 40, S 6 43 – 47, R 1 31 – 34, R 2 29 – 31, R 3 28 – 30, R 4 28 – 31, R 5 30 – 32, RX 35 – 37. Ventral idiosoma (Figure 13). Tritosternum flanked by two pairs of presternal platelets close to each other. Sternal shield reticulated and bearing three pairs of setae (st 1 – st 3) and two pairs of poroids (iv 1 – iv 2). Metasternal shield, bearing seta st 4 and poroids iv 3, separated from sternal and epigynal shields. Epigynal shields, bearing setae st 5, separated from opisthogastric shield. Endogynium saccate, with a swallow kite-shaped principal structure in the center, posteriorly adjacent to a circular opening and laterally bordered by paired lamellar outgrowths (Figure 14). Opisthogastric shield bearing ten pairs of ventral setae, setae ZV 1 and SV 1 fine, JV 4 and ZV 4 pilose. Opisthogastric soft cuticle with five pairs of pilose setae, seta JV 5 (64 – 68) longer than others. Peritrematal groove length 344 – 361. Length of setae on ventral shields: st 1 60 – 64, st 2 53 – 55, st 3 51 – 54, st 4 44 – 47, st 5 51 – 53, JV 1 54 – 57, JV 2 47 – 50, JV 3 52 – 55, JV 4 55 – 58, ZV 1 17 – 19, ZV 2 45 – 48, ZV 3 56 – 58, ZV 4 54 – 56, SV 1 16 – 19, SV 2 31 – 34, pa 27 – 29, po 39 – 40. Gnathosoma (Figures 15 – 18). Gnathotectum anterior margin with three prongs and emerging from base with three to five small teeth on each side; prongs apically sharp, central prong longer than lateral ones (Figure 15). Palp length 345 – 361; seta v 2 on palptrochanter longer than v 1; seta al on palpfemur pectinate, setae d 1, d 2 and d 3 distally pilose; al 1 and al 2 on palpfemur spatulate, others simple (Figure 16). Deutosternal groove with 11 denticulate rows; setae h 1 (63 – 66) and h 2 (51 – 53) and h 3 (55 – 57) simple, pcx (70 – 75) slightly pilose (Figure 17). Fixed and movable digits of chelicera with several small teeth (Figure 18). Legs (Figures 19 – 22). Lengths of legs: I 902 – 935, II 649 – 676, III 598 – 622, IV 918 – 962. Leg I thinner than other legs. Coxa I with an apophysis ventrally (Figure 19). Femur II and Genu II each bearing a short and thickened pilose seta (Figure 20). Setae av 1, al 1, pv 1 and pl 1 on tarsi II – IV modified to short and thick spurs. Most setae on leg I – leg III simple, most setae on leg IV pilose. Other stages. Unknown.	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4422FFCDDFCE3C89FE37FD65.taxon	etymology	Etymology. This species is named after the morphological characteristics of its dorsal setae, which are thick (crassi-, from Latin crassus meaning " stout " or " robust ") and distally pilose (- pilosus, from Latin pilus meaning " seta ").	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
0396878D4422FFCDDFCE3C89FE37FD65.taxon	diagnosis	Differential diagnosis. The newly described species is morphologically similar to C. tibetensis in the number of setae on the opisthogastric and opisthonotal shields, as well as the shape of setae r 2 and r 6. However, the female of C. crassipilosus sp. nov. differs from C. tibetensis as follows: (1) dorsal seta z 2 simple, vs. pilose in C. tibetensis; (2) ventral seta ZV 4 simple, vs. pilose in C. tibetensis; (3) five pairs of pilose setae on opisthogastric soft cuticle, vs. a pair in C. tibetensis; (4) seta pcx pilose, vs. simple in C. tibetensis; (5) two pairs of presternal platelets, vs. three pairs in C. tibetensis; (6) central prong of gnathotectum more than two times longer than lateral prongs, vs. equal in length in C. tibetensis.	en	Yao, Mao-Yuan, Ren, Rong, Chen, Jian-Xin, Wu, You-Fang, Yi, Tian-Ci, Jin, Dao-Chao (2026): Two new species of Cerogamasus Jin & Yao, 2024 (Acari, Parasitiformes, Parasitidae) from China. Zootaxa 5785 (2): 352-361, DOI: 10.11646/zootaxa.5785.2.6, URL: https://doi.org/10.11646/zootaxa.5785.2.6
