taxonID	type	description	language	source
992C3264FFF4FFEDA0D9FB35D0A5CE7F.taxon	type_taxon	Type species: Ueckermannopalpus mineirus Castro, Ochoa & Beard sp. nov.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFF4FFEDA0D9FB35D0A5CE7F.taxon	diagnosis	Diagnosis (adult female). Palps usually three-segmented, rarely two-segmented (unguibus); distal palp segment (tarsus) with 1 terminal phanere. Anterior margin of prodorsum usually with distinct median forked projection forming a notch, rarely small (iraniensis) or absent (thymus); dorsal opisthosoma with 9 pairs of setae (c 1, c 3, d 1, d 3, e 1, e 3, f 3, h 1, h 2 present; c 2, d 2, e 2, f 2 absent); dorsal setae fine, usually short (c 1 long in iraniensis). Ventral and genital plates not developed, both regions merged together into ventro-genital region; 2 pairs of ps setae, anal plates membranous, ps 2 – 3 inserted longitudinally on anal plates; setae 4 a elongate and fine; usually lacking supernumerary coxal setae 4 a 2 (present in thymus); lacking supernumerary coxal setae 3 a 2. Trochanter setal formula 1 - 1 - 2 - 1, all trochantal setae acicular. Femora formula 4 - 4 - 2 - 2 or 4 - 4 - 2 - 1; femur III seta d present; femur IV seta d usually absent, rarely present (thymus). Genua formula 3 - 3 - 0 - 0 or 3 - 3 - 1 - 1; genua III – IV usually lacking seta l′, rarely present (thymus). Tibiae with five setae (lʹʹ present). Femora I – IV, genua I – II, tibiae I – IV usually with seta d and l ″ acicular, smooth or barbed. Where known, ontogenetic addition of setae typical for family. Empodia pad-like and tarsal claws usually pad-like, rarely uncinate (unguibus), both with tenent hairs. Opisthonotal pores present.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFF4FFEDA0D9FB35D0A5CE7F.taxon	discussion	Remarks. Ueckermannopalpus gen. nov. is closest to Amblypalpus in sharing several characteristics, such as the palps usually three-segmented, reduction of the dorsal opisthosomal setae (c 2, d 2, e 2, f 2 absent), ventral and genital shields not developed, similar leg setation, and the morphology of the pretarsus. The new genus is distinguished from Amblypalpus by having the opisthosomal setae h 2 present, which represents a significant plesiomorphic retention. Ueckermannopalpus gen. nov. is also close to Goodeniacarus Beard & Seeman, 2025 and Inglacarus Beard & Seeman, 2025 in sharing many of the same characteristics shared with Amblypalpus listed above. The new genus is distinguished from Goodeniacarus by having e 1 and h 2 present (absent in Goodeniacarus); femora I – IV, genua I – II, tibiae I – IV usually with seta d and l ″ acicular, smooth or barbed (blunt in Goodeniacarus). The new genus is distinguished from Inglacarus by having e 1 present (absent in Inglacarus); and two or three segmented palps (one segmented in Inglacarus).	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFF4FFEDA0D9FB35D0A5CE7F.taxon	etymology	Etymology. The genus Ueckermannopalpus is named in honour of our colleague and dear friend Dr. Edward (Eddie) A. Ueckermann, who was a research scientist and professor at the North-West University, South Africa, and has dedicated more than 40 years to the study of mites.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFF7FFE9A0D9FE4DD35BC8C1.taxon	description	(Figs. 1 – 9)	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFF7FFE9A0D9FE4DD35BC8C1.taxon	diagnosis	Diagnosis FEMALE: Prodorsal and opisthosomal setae short to minute. Central region of prodorsum smooth; sublateral region with longitudinal to oblique striae; opisthosoma with longitudinal striae sublaterally; central region between setae c 1 and e 1 mostly smooth; region posterior to setae e 1 with transverse and broken striae. Palps three-segmented; second segment elongate and bearing one seta; distal (third) segment bearing one eupathidium. Ventral seta 4 a 2 absent; ventral cuticle mostly smooth; ventral propodosoma with longitudinal striae; ventro-genital and anal plates poorly developed. Trochanters I – IV 1 - 1 - 2 - 1, genua I – IV 3 - 3 - 0 - 0. Tarsal claws pad-like. MALE: Dorsal setae similar to those of female.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFF7FFE9A0D9FE4DD35BC8C1.taxon	materials_examined	Type material. Holotype: female collected on Lychnophora ericoides Mart. (Asteraceae), from the Parque Nacional da Serra da Canastra, located in São Roque de Minas, Minas Gerais, Brazil, (20 ° 10 ’ S, 46 ° 26 ’ W), 21 September 2016, coll. E. B. Castro (DZSJRP). Paratypes: 2 females, 1 male, same data as holotype (DZSJRP); 1 female, same data as holotype (DEES).	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFF7FFE9A0D9FE4DD35BC8C1.taxon	description	Description FEMALE (Figs. 1 – 5, n = 4). Dorsum (Figs. 1 – 2): Distance between setae v 2 – h 1 200 (190 – 205), sc 2 – sc 2 120 (100 – 120). Anterior margin of prodorsum with one pair of median lobes, forming a forked projection with a notch. Central region of prodorsum smooth; sublateral region with longitudinal to oblique striae; opisthosoma with longitudinal striae sublaterally; central region between setae c 1 and e 1 mostly smooth; region posterior to setae e 1 with transverse and broken striae. Opisthosomal pores present. Prodorsal and opisthosomal setae short to minute, similar in length. Setal lengths: v 2 5 (5 – 6), sc 1 5 (5 – 8), sc 2 6 (6 – 8), c 1 missing (6), c 3 5 (4 – 6), d 1 3 (3 – 5), d 3 5 (4 – 5), e 1 4 (3 – 6), e 3 3 (3 – 5), f 3 3 (3 – 4), h 1 4 (4 – 5), h 2 3 (3 – 4). Distance between setae: v 2 – v 2 18 (16 – 18), sc 1 – sc 1 75 (68 – 75), c 1 – c 1 45 (38 – 46), c 3 – c 3 135 (115 – 135), d 1 – d 1 31 (23 – 31), d 3 – d 3 123 (112 – 124), e 1 – e 1 9 (9 – 11), e 3 – e 3 100 (90 – 100), f 3 – f 3 77 (72 – 78), h 2 – h 2 45 (42 – 50), h 1 – h 1 14 (14 – 15). Gnathosoma (Fig. 4): Palps three-segmented, basal (first) segment short; second segment elongate and bearing one long, acicular seta d 13 (13 – 14); distal (third) segment bearing one eupathidium ul′ 8 (8 – 9). Ventral setae m 16 (14 – 16), smooth; distance between setae m – m 11 (11 – 13). Venter (Fig. 3): Ventral cuticle mostly smooth; ventral prodorsum with longitudinal striae laterally; cuticle between setae 3 a and 4 a with weakly transverse striae; ventro-genital and anal plates poorly developed. Coxal, genital and anal setae fine; setae 1 a elongate filiform. Setal lengths: 1 a 65 (65 – 80), 1 b 30 (27 – 30), 1 c 15 (10 – 15), 2 b 16 (15 – 18), 2 c 13 (11 – 13), 3 a 10 (10 – 13), 3 b 9 (9 – 12), 4 a 10 (9 – 12), 4 b 11 (11 – 13), ag 5 (5 – 8), g 1 4 (4 – 5), g 2 4 (4 – 5), ps 2 8 (5 – 8), ps 3 8 (7 – 8). Spermatheca: Not visible. Legs (Fig. 5): Setal formula for legs I – IV (coxae to tarsi): 2 - 2 - 1 - 1, 1 - 1 - 2 - 1, 4 - 4 - 2 - 1, 3 - 3 - 0 - 0, 5 - 5 - 3 - 3, 9 (1) - 9 (1) - 5 - 5. Tarsi I and II each with one solenidion ω ” 6 (6 – 7) and two eupathidia pζ′ – pζ ” (all 8 – 9). Femora with dorsal setae d, thin, smooth. Genua III and IV nude. Tarsal claws pad-like. MALE (Figs. 6 – 9, n = 1). Dorsum (Figs. 6 – 7): Distance between setae v 2 – h 1 150, sc 2 – sc 2 88. Anterior margin of prodorsum with one pair of median lobes, forming a forked projection with a notch. Central region of prodorsum smooth; sublateral region with longitudinal to oblique striae; opisthosoma with longitudinal striae sublaterally. Opisthosomal pores present. Prodorsal and opisthosomal setae short to minute, similar in length. Setal lengths: v 2 6, sc 1 6, sc 2 7, c 1 6, c 3 6, d 1 missing, d 3 5, e 1 4, e 3 5, f 3 5, h 1 4, h 2 4. Distance between setae: v 2 – v 2 13, sc 1 – sc 1 55, c 1 – c 1 29, c 3 – c 3 88, d 1 – d 1 22, d 3 – d 3 80, e 1 – e 1 9, e 3 – e 3 62, f 3 – f 3 55, h 2 – h 2 33, h 1 – h 1 12. Gnathosoma: Palps similar to those of females. Seta d on second segment 11, eupathidium ul′ on distal (third) segment 7. Ventral setae m 12; distance between setae m – m 12. Venter (Fig. 8): Cuticle between setae 1 a and 4 a with fine weak striae centrally; prodorsal region with longitudinal to oblique striae laterally. Genital plate with transverse striae centrally. Anal valves with weakly longitudinal striae. Coxal, genital and anal setae fine; setae 1 a elongate filiform; setae ps 3 modified and inserted in a ventral and distal position on anal valves. Setal lengths: 1 a 18 broken, 1 b 20, 1 c 9, 2 b 15, 2 c 12, 3 a 10, 3 b 12, 4 a 10, 4 b 9, ag 11, g 1 13, g 2 12, ps 2 7, ps 3 7. Legs (Figs. 8 – 9): Setal formula for legs I – IV (coxae to tarsi): 2 - 2 - 1 - 1, 1 - 1 - 2 - 1, 4 - 4 - 2 - 1, 3 - 3 - 0 - 0, 5 - 5 - 3 - 3, 10 (2) - 10 (2) - 5 - 5. Tarsi I and II with two solenidia (one abaxial, one adaxial), tarsi I ω ” 7, ω’ 7, tarsi II ω ” 7, ω’ 6 and two eupathidia pζ′ – pζ ” (7, 7; 8, 8 respectively). Other setae similar to those of female. IMMATURES: Unknown.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFF7FFE9A0D9FE4DD35BC8C1.taxon	etymology	Etymology. The specific name mineirus in honour of the state of Minas Gerais, southeastern Brazil, where the species was collected.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFF7FFE9A0D9FE4DD35BC8C1.taxon	diagnosis	Differential diagnosis. Ueckermannopalpus mineirus sp. nov. resembles U. cerradoensis sp. nov., here described, by the shape of dorsal setae and dorsal ornamentation, but can be separated by having ventral setae 4 a short (elongate and filiform in U. cerradoensis sp. nov.) and setal formula of tibia 5 - 5 - 3 - 3 (5 - 5 - 3 - 2 in U. cerradoensis sp. nov.).	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFFEFFE0A0D9FBE6D330C8D1.taxon	description	(Figs. 10 – 14)	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFFEFFE0A0D9FBE6D330C8D1.taxon	diagnosis	Diagnosis. FEMALE: Prodorsal and opisthosomal setae short to minute. Anterior region of prodorsum with longitudinal striae; central region of prodorsum smooth; sublateral and lateral regions with longitudinal striae; opisthosoma with longitudinal striae sublaterally; cuticle between setae d 1 and e 1 with transverse and broken striae. Palps three-segmented; second segment elongate and bearing one seta; distal (third) segment bearing one eupathidium. Ventral seta 4 a 2 absent; ventral cuticle mostly striated; ventral propodosoma with irregular striae centrally and longitudinal striae laterally; ventro-genital and anal plates poorly developed. Ventro-genital plate with irregular striae. Trochanters I – IV 1 - 1 - 2 - 1, genua I – IV 3 - 3 - 0 - 0, tibiae I – IV 5 - 5 - 3 - 2. Tarsal claws pad-like.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFFEFFE0A0D9FBE6D330C8D1.taxon	materials_examined	Type material. Holotype: female collected on Vernonia polyanthes Less. (Asteraceae), from the Parque Nacional da Serra da Canastra, located in São Roque de Minas, Minas Gerais, Brazil, (20 ° 10 ’ S, 46 ° 26 ’ W), 21 September 2016, coll. E. B. Castro (DZSJRP). Paratypes: 3 females, same data as holotype (DZSJRP); 1 female, same data as holotype (DEES).	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFFEFFE0A0D9FBE6D330C8D1.taxon	description	Description FEMALE (Figs. 10 – 14, n = 5). Dorsum (Figs. 10 – 11): Distance between setae v 2 – h 1 215 (205 – 215), sc 2 – sc 2 135 (130 – 140). Anterior margin of prodorsum with one pair of median lobes, forming a forked projection with a notch. Anterior region of prodorsum with longitudinal striae; central region of prodorsum smooth; sublateral and lateral regions with longitudinal striae; opisthosoma with longitudinal striae sublaterally; cuticle between setae d 1 and e 1 with transverse to broken striae. Opisthosomal pores present. Prodorsal and opisthosomal setae short to minute, similar in length. Setal lengths: v 2 6 (6), sc 1 5 (5 – 6), sc 2 6 (5 – 6), c 1 4 (3 – 4), c 3 5 (5 – 6), d 1 5 (5), d 3 5 (5), e 1 5 (4 – 5), e 3 5 (4 – 5), f 3 5 (4 – 5), h 1 4 (4 – 5), h 2 5 (4 – 5). Distances between setae: v 2 – v 2 23 (17 – 23), sc 1 – sc 1 95 (91 – 96), c 1 – c 1 23 (22 – 27), c 3 – c 3 150 (145 – 160), d 1 – d 1 17 (15 – 17), d 3 – d 3 135 (130 – 140), e 1 – e 1 14 (10 – 14), e 3 – e 3 115 (105 – 120), f 3 – f 3 100 (85 – 100), h 2 – h 2 53 (53 – 60), h 1 – h 1 10 (10 – 13). Gnathosoma (Fig. 13): Palps three-segmented, basal (first) segment short; second segment elongate and bearing one long, barbed setae d 10 (10 – 11); distal (third) segment short and bearing one eupathidium ul′ 7 (7 – 8). Ventral setae m 10 (9 – 10) barbed; distance between setae m – m 18 (16 – 18). Venter (Fig. 12): Ventral cuticle mostly striated; ventral prodorsum with irregular striae centrally and longitudinal striae laterally; ventro-genital and anal plates poorly developed. Ventro-genital plate with irregular striae. Coxal, genital and anal setae fine; setae 1 a, 4 a elongate filiform. Setal lengths: 1 a 90 (55 – 90), 1 b 25 (22 – 28), 1 c 10 (10 – 11), 2 b 20 (20 – 25), 2 c 14 (14 – 17), 3 a 9 (9 – 12), 3 b 12 (9 – 12), 4 a 50 (35 – 55), 4 b 9 (6 – 9), ag 4 (4 – 5), g 1 5 (4 – 6), g 2 5 (5 – 6), ps 2 7 (8 – 10), ps 3 10 (10 – 11). Spermatheca: Not visible. Legs (Figs. 14): Setal formula for legs I – IV (coxae to tarsi): 2 - 2 - 1 - 1, 1 - 1 - 2 - 1, 4 - 4 - 2 - 1, 3 - 3 - 0 - 0, 5 - 5 - 3 - 2, 9 (1) - 9 (1) - 5 - 5. Tarsi I and II each with one solenidion ω ” 7 (7 – 8), 6 (6 – 7) and two eupathidia pζ′ – pζ ” (all 7 – 8). Femora with dorsal setae d, thin, slightly barbed. Genua III and IV nude. Tibia IV with two setae (seta d absent). Tarsal claws pad-like. MALE AND IMMATURES: Unknown.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFFEFFE0A0D9FBE6D330C8D1.taxon	etymology	Etymology. The name cerradoensis is given in reference to the Cerrado biome, where the mites were collected.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFFEFFE0A0D9FBE6D330C8D1.taxon	diagnosis	Differential diagnosis. Ueckermannopalpus cerradoensis sp. nov. resembles U. mineirus sp. nov., here described, by the shape of dorsal setae and dorsal ornamentation, but can be separated by having ventral setae 4 a elongate and filiform (4 a short in U. mineirus sp. nov.), setal formula of tibia 5 - 5 - 3 - 2 (5 - 5 - 3 - 3 in U. mineirus sp. nov.), and seta d on the second palp segment and seta m on infracapitulum barbed (setae d and m smooth in U. mineirus sp. nov.).	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFE5FFFEA0D9F908D111C86B.taxon	description	(Figs. 15 – 21)	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFE5FFFEA0D9F908D111C86B.taxon	diagnosis	Diagnosis. FEMALE: Prodorsal and opisthosomal setae short to minute. Central region of prodorsum smooth; lateral and sublateral regions with longitudinal to oblique striae; opisthosoma with oblique striae laterally; central region between c 1 – c 1 to h 1 – h 1 smooth. Palps two-segmented; distal (second) segment elongate and bearing one seta and one eupathidium. Ventral seta 4 a 2 absent; ventral cuticle mostly striated; ventro-genital and anal plates poorly developed. Trochanters I – IV 1 - 1 - 2 - 1, genua I – IV 3 - 3 - 0 - 0. Tarsal claws uncinate. DEUTONYMPH: Dorsal setae sc 2, c 3 and d 3 acicular, barbed; other dorsal setae short to minute.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFE5FFFEA0D9F908D111C86B.taxon	materials_examined	Type material. Holotype: female collected on Echinolaena inflexa (Poir.) Chase. (Poaceae), from Brasília, Distrito Federal, Brazil, (15 º 52 ’ 31.1 ” S 47 ° 50 ’ 29.1 ” W), 02 August 2018, coll. A. D. Tassi (DZSJRP). Paratypes: 6 females, 1 deutonymph, same data as holotype (DZSJRP); 3 females, same data as holotype (DEES).	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFE5FFFEA0D9F908D111C86B.taxon	description	Description FEMALE (Figs. 15 – 19, n = 4). Dorsum (Figs. 15 – 16): Distance between setae v 2 – h 1 262 (245 – 265), sc 2 – sc 2 170 (150 – 160). Anterior margin of prodorsum with one pair of central median lobes, forming a forked projection with a notch, and one pair of lateral projections. Central region of prodorsum smooth; lateral and sublateral region with longitudinal to oblique striae; opisthosoma with longitudinal striae laterally; central region between c 1 – c 1 to h 1 – h 1 smooth. Opisthosomal pores present. Prodorsal and opisthosomal setae short to minute, similar in length. Setal lengths: v 2 5 (5 – 6), sc 1 4 (4 – 7), sc 2 10 (10 – 12), c 1 10 (9 – 10), c 3 7 (7 – 10), d 1 5 (5 – 6), d 3 9 (8 – 11), e 1 4 (3 – 5), e 3 6 (4 – 6), f 3 5 (5 – 6), h 1 6 (4 – 6), h 2 5 (5 – 7). Distance between setae: v 2 – v 2 30 (27 – 30), sc 1 – sc 1 95 (94 – 98), c 1 – c 1 51 (47 – 52), c 3 – c 3 157 (147 – 162), d 1 – d 1 34 (31 – 38), d 3 – d 3 136 (131 – 142), e 1 – e 1 20 (17 – 22), e 3 – e 3 102 (97 – 102), f 3 – f 3 83 (77 – 87), h 2 – h 2 50 (50 – 61), h 1 – h 1 20 (17 – 20). Gnathosoma (Fig. 18): Palps two-segmented, basal (first) segment short; distal (second) segment elongated and bearing one long seta d 17 (13 – 17) and one setiform eupathidium ul′ 8 (8 – 11). Ventral setae m 8 (8 – 13), smooth; distance between setae m – m 14 (12 – 15). Venter (Fig. 17): Ventral cuticle mostly striated; ventral propodosoma with longitudinal striae laterally and irregular striae centrally; cuticle between setae 3 a and 4 a with transverse striae; ventro-genital and anal plates poorly developed; region between setae ag and ps 3 with transverse striae. Coxal, genital and anal setae fine, short to minute; setae 1 a and 4 a elongate filiform. Setal lengths: 1 a 80 (62 – 84), 1 b 27 (15 – 27), 1 c 14 (12 – 15), 2 b 17 (15 – 20), 2 c 14 (11 – 15), 3 a 12 (9 – 12), 3 b 15 (10 – 15), 4 a 93 (57 – 93), 4 b 13 (12 – 16), ag 5 (4 – 6), g 1 4 (4 – 5), g 2 3 (3 – 5), ps 2 9 (6 – 9), ps 3 10 (7 – 10). Spermatheca: Not visible. Legs (Fig. 19): Setal formula for legs I – IV (coxae to tarsi): 2 - 2 - 1 - 1, 1 - 1 - 2 - 1, 4 - 4 - 2 - 1, 3 - 3 - 0 - 0, 5 - 5 - 3 - 3, 9 (1) - 9 (1) - 5 - 5. Tarsi I and II each with one solenidion ω ″ 7 (6 – 9), ω ″ 7 (6 – 7), respectively, and two eupathidia pζ′ – pζ ″ 12 (11 – 12), 11 (10 – 13), respectively. Femora with dorsal setae d, acicular, barbed. Genua III and IV nude. Tarsal claws well-developed, uncinate. DEUTONYMPH (Figs. 20 – 21, n = 1). Dorsum (Fig. 20): Distance between setae v 2 – h 1 187, sc 2 – sc 2 105. Anterior margin of prodorsum shield rounded without projections or notch. Prodorsum smooth; region between setae c 1 and d 1 with widely spaced, incomplete transverse folds and striae; posterior opisthosoma smooth. Dorsal setae sc 2, c 3 and d 3 barbed, longer and thicker than other dorsal setae; other dorsal setae short to minute. Setal lengths: v 2 4, sc 1 5, sc 2 16, c 1 6, c 3 16, d 1 3, d 3 18, e 1 3, e 3 4, f 3 3, h 1 3, h 2 3. Distance between setae: v 2 – v 2 28, sc 1 – sc 1 73, c 1 – c 1 35, c 3 – c 3 110, d 1 – d 1 24, d 3 – d 3 91, e 1 – e 1 8, e 3 – e 3 70, f 3 – f 3 58, h 2 – h 2 39, h 1 – h 1 14. Gnathosoma: Palps similar to those of females. Seta d on second segment 7, eupathidium ul′ 6. Ventral setae m 8; distance between setae m – m 13. Venter: Cuticle between setae 1 a and g 1 with fine transverse striae; coxal, genital and anal setae fine; setae 1 a and 4 a elongate filiform. Setal lengths: 1 a 45, 1 b 7, 1 c 6, 2 b 6, 2 c 5, 3 a 5, 3 b 5, 4 a 20, 4 b 6, ag 3, g 1 3, ps 2 5, ps 3 4. Legs (Fig. 21): Setal formula for legs I – IV (coxae to tarsi): 2 - 2 - 1 - 1, 1 - 1 - 2 - 1, 4 - 4 - 2 - 1, 3 - 3 - 0 - 0, 5 - 5 - 3 - 3, 9 (1) - 9 (1) - 5 - 3. Tarsi I and II each with one solenidion ω ” 4, 5, respectively, and two eupathidia pζ′ – pζ ″ 9, 10, respectively. Tarsus IV with tc′ – tc ” absent. Other setae similar to those of female. MALE: Unknown.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFE5FFFEA0D9F908D111C86B.taxon	etymology	Etymology. The specific name unguibus (claw, L.) refers to the presence of uncinated tarsal claws.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFE5FFFEA0D9F908D111C86B.taxon	diagnosis	Differential diagnosis. Ueckermannopalpus unguibus sp. nov. can be easily separated from the other species in the genus by the unique presence of uncinated tarsal claws.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFECFFF6A0D9FF6CD10BCB40.taxon	type_taxon	Type species: Amblypalpus narsikulovi Mitrofanov & Strunkova, 1978	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFECFFF6A0D9FF6CD10BCB40.taxon	diagnosis	Diagnosis (adult female) Palps three-segmented; palp tarsus usually with 1 terminal phanere, or with highly reduced second phanere (narsikulovi). Anterior margin of prodorsum with distinct median forked projection forming a notch, sometimes flanked by lateral projections (masakii, thomissus); dorsal opisthosoma with 7 – 8 pairs of setae (c 3, d 1, d 3, e 1, e 3, f 3, h 1 present; c 2, d 2, e 2, f 2, h 2 absent; c 1 present, or absent in masakii); dorsal setae variable: fine, short (masakii, narsikulovi) or heteromorphic (thomissus with sc 1, c 1, e 1 very long, lateral setae thickened). Ventral and genital plates merged together into ventro-genital region (masakii, narsikulovi), or genital plate developed (thomissus); 2 pairs of ps setae (not known for masakii); anal plate membranous with ps 2 – 3 inserted longitudinally (narsikulovi, thomissus), or unknown (masakii); setae 4 a elongate fine (masakii, narsikulovi), or short (thomissus); supernumerary coxal setae 4 a 2 present (narsikulovi) or absent (masakii, thomissus), supernumerary coxal setae 3 a 2 absent. Trochanter setal formula 1 - 1 - 2 - 1 or unknown (thomissus). Femora formula 4 - 4 - 2 - 2 or 4 - 4 - 2 - 1; femur III seta d present, femur IV seta d present or absent (masakii). Genua formula 3 - 3 - 1 - 0 or 3 - 3 - 0 - 0; genua III with l seta present (narsikulovi) or absent (masakii, thomissus). Tibiae with five setae (lʹʹ present). Femora I – IV, genua I – II, tibiae I – IV usually with seta d and lʹʹ acicular, smooth (narsikulovi, masakii) or unknown (thomissus). Ontogeny of leg setae unknown. Tarsal claws pad-like. Opisthonotal pores present (masakii, narsikulovi) or absent (thomissus).	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
992C3264FFECFFF6A0D9FF6CD10BCB40.taxon	discussion	Remarks. We propose that Amblypalpus includes just three species, A. narsikulovi Mitrofanov & Strunkova (the type species), A. masakii (Ehara & Ueckermann), and A. thomissus (Meyer). The diagnosis of the genus has been modified to exclude the species A. iraniensis and A. thymus, which are here moved to Ueckermannopalpus gen. nov. The three species of Amblypalpus have opisthosomal setae h 2 absent (Table 1), and the dorsal opisthosoma bearing 7 – 8 pairs of setae (i. e., c 3, d 1, d 3, e 1, e 3, f 3, h 1 present; c 1 present or absent). The absence of setae h 2 is considered a synapomorphy of the tribe Obuloidini (Beard et al. 2022) and is also observed in the genera Terminalichus Anwarullah & Khan, 1973 and Goodeniacarus.	en	Castro, Elizeu B., Tassi, Aline D., Machado, Vinicius B. G., Ochoa, Ronald, Beard, Jennifer J., Seeman, Owen D., Lofego, Antonio C. (2025): A new genus of flat mites (Acariformes: Tenuipalpidae), with the description of three new species from Brazil. Zootaxa 5653 (1): 33-62, DOI: 10.11646/zootaxa.5653.1.2, URL: https://doi.org/10.11646/zootaxa.5653.1.2
