taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
50AE4B6884D65937A4845E1B2DDE2230.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742077	https://doi.org/10.3897/zookeys.1289.202453.figure1	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
50AE4B6884D65937A4845E1B2DDE2230.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742078	https://doi.org/10.3897/zookeys.1289.202453.figure2	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
50AE4B6884D65937A4845E1B2DDE2230.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742079	https://doi.org/10.3897/zookeys.1289.202453.figure3	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
50AE4B6884D65937A4845E1B2DDE2230.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742080	https://doi.org/10.3897/zookeys.1289.202453.figure4	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
50AE4B6884D65937A4845E1B2DDE2230.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742081	https://doi.org/10.3897/zookeys.1289.202453.figure5	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
50AE4B6884D65937A4845E1B2DDE2230.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742082	https://doi.org/10.3897/zookeys.1289.202453.figure6	Figure 6. Claws of Hydrobiomorpha species. A – L. Hydrobiomorpha bachmanni sp. nov.; M. Hydrobiomorpha corumbaensis; N. Hydrobiomorpha longa; O. Hydrobiomorpha rudesculpta. A, G, O. Anterior claws of prothoracic leg; B, J. Posterior claws of prothoracic leg; C, H. Anterior claws of mesothoracic leg; D, K. Posterior claws of mesothoracic leg; E, I. Anterior claws of metathoracic leg; F, L, M, N. Posterior claws of metathoracic leg; A – F, M – O. Male specimens; G – L. Female specimen. Scale bar: 500 µm.	Figure 6. Claws of Hydrobiomorpha species. A – L. Hydrobiomorpha bachmanni sp. nov.; M. Hydrobiomorpha corumbaensis; N. Hydrobiomorpha longa; O. Hydrobiomorpha rudesculpta. A, G, O. Anterior claws of prothoracic leg; B, J. Posterior claws of prothoracic leg; C, H. Anterior claws of mesothoracic leg; D, K. Posterior claws of mesothoracic leg; E, I. Anterior claws of metathoracic leg; F, L, M, N. Posterior claws of metathoracic leg; A – F, M – O. Male specimens; G – L. Female specimen. Scale bar: 500 µm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
50AE4B6884D65937A4845E1B2DDE2230.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742083	https://doi.org/10.3897/zookeys.1289.202453.figure7	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
50AE4B6884D65937A4845E1B2DDE2230.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742085	https://doi.org/10.3897/zookeys.1289.202453.figure8	Figure 8. Scanning electron micrographs of Hydrobiomorpha bachmanni sp. nov. paratype (MACN - En 46708). A. Head, dorsal aspect; B. Pronotum, dorsal aspect; C. Elytron, dorsal aspect; D – F. Details of head; G – I. Details of pronotum; J, K. Details of elytron. Scale bars: 1 mm (A – C), 200 µm (D, E, J), 10 µm (F), 100 µm (G – H), 20 µm (I), 60 µm (K).	Figure 8. Scanning electron micrographs of Hydrobiomorpha bachmanni sp. nov. paratype (MACN - En 46708). A. Head, dorsal aspect; B. Pronotum, dorsal aspect; C. Elytron, dorsal aspect; D – F. Details of head; G – I. Details of pronotum; J, K. Details of elytron. Scale bars: 1 mm (A – C), 200 µm (D, E, J), 10 µm (F), 100 µm (G – H), 20 µm (I), 60 µm (K).	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
1B2260200A1A585D9E649CFE39BDF1F9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742077	https://doi.org/10.3897/zookeys.1289.202453.figure1	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
1B2260200A1A585D9E649CFE39BDF1F9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742078	https://doi.org/10.3897/zookeys.1289.202453.figure2	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
1B2260200A1A585D9E649CFE39BDF1F9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742079	https://doi.org/10.3897/zookeys.1289.202453.figure3	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
1B2260200A1A585D9E649CFE39BDF1F9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742080	https://doi.org/10.3897/zookeys.1289.202453.figure4	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
1B2260200A1A585D9E649CFE39BDF1F9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742081	https://doi.org/10.3897/zookeys.1289.202453.figure5	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
1B2260200A1A585D9E649CFE39BDF1F9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742082	https://doi.org/10.3897/zookeys.1289.202453.figure6	Figure 6. Claws of Hydrobiomorpha species. A – L. Hydrobiomorpha bachmanni sp. nov.; M. Hydrobiomorpha corumbaensis; N. Hydrobiomorpha longa; O. Hydrobiomorpha rudesculpta. A, G, O. Anterior claws of prothoracic leg; B, J. Posterior claws of prothoracic leg; C, H. Anterior claws of mesothoracic leg; D, K. Posterior claws of mesothoracic leg; E, I. Anterior claws of metathoracic leg; F, L, M, N. Posterior claws of metathoracic leg; A – F, M – O. Male specimens; G – L. Female specimen. Scale bar: 500 µm.	Figure 6. Claws of Hydrobiomorpha species. A – L. Hydrobiomorpha bachmanni sp. nov.; M. Hydrobiomorpha corumbaensis; N. Hydrobiomorpha longa; O. Hydrobiomorpha rudesculpta. A, G, O. Anterior claws of prothoracic leg; B, J. Posterior claws of prothoracic leg; C, H. Anterior claws of mesothoracic leg; D, K. Posterior claws of mesothoracic leg; E, I. Anterior claws of metathoracic leg; F, L, M, N. Posterior claws of metathoracic leg; A – F, M – O. Male specimens; G – L. Female specimen. Scale bar: 500 µm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
1B2260200A1A585D9E649CFE39BDF1F9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742083	https://doi.org/10.3897/zookeys.1289.202453.figure7	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
67E4541AC6BA5F2FBB444EB104463DE8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742077	https://doi.org/10.3897/zookeys.1289.202453.figure1	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
67E4541AC6BA5F2FBB444EB104463DE8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742078	https://doi.org/10.3897/zookeys.1289.202453.figure2	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
67E4541AC6BA5F2FBB444EB104463DE8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742079	https://doi.org/10.3897/zookeys.1289.202453.figure3	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
67E4541AC6BA5F2FBB444EB104463DE8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742080	https://doi.org/10.3897/zookeys.1289.202453.figure4	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
67E4541AC6BA5F2FBB444EB104463DE8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742081	https://doi.org/10.3897/zookeys.1289.202453.figure5	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
141480FD9D835135990A4D0FAA1A3EA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742077	https://doi.org/10.3897/zookeys.1289.202453.figure1	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
141480FD9D835135990A4D0FAA1A3EA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742078	https://doi.org/10.3897/zookeys.1289.202453.figure2	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
141480FD9D835135990A4D0FAA1A3EA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742079	https://doi.org/10.3897/zookeys.1289.202453.figure3	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
141480FD9D835135990A4D0FAA1A3EA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742080	https://doi.org/10.3897/zookeys.1289.202453.figure4	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
141480FD9D835135990A4D0FAA1A3EA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742081	https://doi.org/10.3897/zookeys.1289.202453.figure5	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
141480FD9D835135990A4D0FAA1A3EA4.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742083	https://doi.org/10.3897/zookeys.1289.202453.figure7	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
B590A4CC7FEB57D9A39A4F93E1CD0496.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742077	https://doi.org/10.3897/zookeys.1289.202453.figure1	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
B590A4CC7FEB57D9A39A4F93E1CD0496.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742078	https://doi.org/10.3897/zookeys.1289.202453.figure2	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
B590A4CC7FEB57D9A39A4F93E1CD0496.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742079	https://doi.org/10.3897/zookeys.1289.202453.figure3	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
B590A4CC7FEB57D9A39A4F93E1CD0496.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742080	https://doi.org/10.3897/zookeys.1289.202453.figure4	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
B590A4CC7FEB57D9A39A4F93E1CD0496.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742081	https://doi.org/10.3897/zookeys.1289.202453.figure5	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
B590A4CC7FEB57D9A39A4F93E1CD0496.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742082	https://doi.org/10.3897/zookeys.1289.202453.figure6	Figure 6. Claws of Hydrobiomorpha species. A – L. Hydrobiomorpha bachmanni sp. nov.; M. Hydrobiomorpha corumbaensis; N. Hydrobiomorpha longa; O. Hydrobiomorpha rudesculpta. A, G, O. Anterior claws of prothoracic leg; B, J. Posterior claws of prothoracic leg; C, H. Anterior claws of mesothoracic leg; D, K. Posterior claws of mesothoracic leg; E, I. Anterior claws of metathoracic leg; F, L, M, N. Posterior claws of metathoracic leg; A – F, M – O. Male specimens; G – L. Female specimen. Scale bar: 500 µm.	Figure 6. Claws of Hydrobiomorpha species. A – L. Hydrobiomorpha bachmanni sp. nov.; M. Hydrobiomorpha corumbaensis; N. Hydrobiomorpha longa; O. Hydrobiomorpha rudesculpta. A, G, O. Anterior claws of prothoracic leg; B, J. Posterior claws of prothoracic leg; C, H. Anterior claws of mesothoracic leg; D, K. Posterior claws of mesothoracic leg; E, I. Anterior claws of metathoracic leg; F, L, M, N. Posterior claws of metathoracic leg; A – F, M – O. Male specimens; G – L. Female specimen. Scale bar: 500 µm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
B590A4CC7FEB57D9A39A4F93E1CD0496.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742083	https://doi.org/10.3897/zookeys.1289.202453.figure7	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
7B5F145CEA0E57C197F87608D3CA7724.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742077	https://doi.org/10.3897/zookeys.1289.202453.figure1	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
7B5F145CEA0E57C197F87608D3CA7724.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742078	https://doi.org/10.3897/zookeys.1289.202453.figure2	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
7B5F145CEA0E57C197F87608D3CA7724.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742079	https://doi.org/10.3897/zookeys.1289.202453.figure3	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
7B5F145CEA0E57C197F87608D3CA7724.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742080	https://doi.org/10.3897/zookeys.1289.202453.figure4	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
7B5F145CEA0E57C197F87608D3CA7724.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742081	https://doi.org/10.3897/zookeys.1289.202453.figure5	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
7B5F145CEA0E57C197F87608D3CA7724.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742082	https://doi.org/10.3897/zookeys.1289.202453.figure6	Figure 6. Claws of Hydrobiomorpha species. A – L. Hydrobiomorpha bachmanni sp. nov.; M. Hydrobiomorpha corumbaensis; N. Hydrobiomorpha longa; O. Hydrobiomorpha rudesculpta. A, G, O. Anterior claws of prothoracic leg; B, J. Posterior claws of prothoracic leg; C, H. Anterior claws of mesothoracic leg; D, K. Posterior claws of mesothoracic leg; E, I. Anterior claws of metathoracic leg; F, L, M, N. Posterior claws of metathoracic leg; A – F, M – O. Male specimens; G – L. Female specimen. Scale bar: 500 µm.	Figure 6. Claws of Hydrobiomorpha species. A – L. Hydrobiomorpha bachmanni sp. nov.; M. Hydrobiomorpha corumbaensis; N. Hydrobiomorpha longa; O. Hydrobiomorpha rudesculpta. A, G, O. Anterior claws of prothoracic leg; B, J. Posterior claws of prothoracic leg; C, H. Anterior claws of mesothoracic leg; D, K. Posterior claws of mesothoracic leg; E, I. Anterior claws of metathoracic leg; F, L, M, N. Posterior claws of metathoracic leg; A – F, M – O. Male specimens; G – L. Female specimen. Scale bar: 500 µm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
7B5F145CEA0E57C197F87608D3CA7724.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742083	https://doi.org/10.3897/zookeys.1289.202453.figure7	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
AFB0D82B5B985A6284CA5A2BF54D87B6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742077	https://doi.org/10.3897/zookeys.1289.202453.figure1	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 1. Habitus of Hydrobiomorpha species, dorsal aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
AFB0D82B5B985A6284CA5A2BF54D87B6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742078	https://doi.org/10.3897/zookeys.1289.202453.figure2	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 2. Habitus of Hydrobiomorpha species, ventral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
AFB0D82B5B985A6284CA5A2BF54D87B6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742079	https://doi.org/10.3897/zookeys.1289.202453.figure3	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	Figure 3. Habitus of Hydrobiomorpha species, lateral aspect. A. Hydrobiomorpha bachmanni sp. nov. (holotype, MACN - En 46706); B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha iguazu (holotype, MACN - En 2213); D. Hydrobiomorpha irina irina; E. Hydrobiomorpha longa; F. Hydrobiomorpha rudesculpta; G. Hydrobiomorpha spinosa. Scale bar: 5 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
AFB0D82B5B985A6284CA5A2BF54D87B6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742080	https://doi.org/10.3897/zookeys.1289.202453.figure4	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
AFB0D82B5B985A6284CA5A2BF54D87B6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742083	https://doi.org/10.3897/zookeys.1289.202453.figure7	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	Figure 7. Mesotibiae of Hydrobiomorpha species. A, G. Hydrobiomorpha bachmanni sp. nov.; B. Hydrobiomorpha corumbaensis; C. Hydrobiomorpha irina irina; D, H. Hydrobiomorpha longa; E, I. Hydrobiomorpha rudesculpta; F, J. Hydrobiomorpha spinosa. A – F. Ventral (inner) views; G – J. Details of distal portion. Scale bars: 300 µm (A – F), 100 µm (G, I – J), 60 µm (H).	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
AFB0D82B5B985A6284CA5A2BF54D87B6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742081	https://doi.org/10.3897/zookeys.1289.202453.figure5	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
A34ABB4E3A365C0CA802A7F2C61C2073.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742081	https://doi.org/10.3897/zookeys.1289.202453.figure5	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	Figure 5. Male genitalia of Hydrobiomorpha species. A – D. Hydrobiomorpha bachmanni sp. nov. (paratype, MACN - En 46707); E – H. Hydrobiomorpha corumbaensis; I – L. Hydrobiomorpha iguazu (holotype, MACN - En 2213); M – P. Hydrobiomorpha irina irina; Q – T. Hydrobiomorpha longa; U – X. Hydrobiomorpha rudesculpta; Y – AB. Hydrobiomorpha spinosa; AC – AF. Hydrobiomorpha utiariti (holotype, MACN - En 2746). A, E, I, M, Q, U, Y, AC. Dorsal aspect; B, F, J, N, R, V, Z, AD. Ventral aspect; C, G, K, O, S, W, AA, AE. Right lateral aspect; D, H, L, P, T, X, AB, AF. Dorsal right-oblique aspect. Scale bars: 1 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
A34ABB4E3A365C0CA802A7F2C61C2073.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742086	https://doi.org/10.3897/zookeys.1289.202453.figure9	Figure 9. A – C. Habitus of Hydrobiomorpha utiariti holotype (MACN - En 2746); A. Dorsal aspect; B. Ventral aspect; C. Lateral aspect; D. Labels of the Hydrobiomorpha utiariti holotype; E. Abdominal ventrites IV – V of Hydrobiomorpha utiariti holotype, ventral aspect; F. Abdominal ventrites IV – V of Hydrobiomorpha utiariti female labelled as allotype (MACN - En 2747), ventral aspect. Scale bars: 5 mm (A – C), 2 mm (E, F).	Figure 9. A – C. Habitus of Hydrobiomorpha utiariti holotype (MACN - En 2746); A. Dorsal aspect; B. Ventral aspect; C. Lateral aspect; D. Labels of the Hydrobiomorpha utiariti holotype; E. Abdominal ventrites IV – V of Hydrobiomorpha utiariti holotype, ventral aspect; F. Abdominal ventrites IV – V of Hydrobiomorpha utiariti female labelled as allotype (MACN - En 2747), ventral aspect. Scale bars: 5 mm (A – C), 2 mm (E, F).	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
A34ABB4E3A365C0CA802A7F2C61C2073.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://binary.pensoft.net/fig/1742080	https://doi.org/10.3897/zookeys.1289.202453.figure4	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	Figure 4. Abdominal ventrites IV – V of Hydrobiomorpha species, ventral aspect. A, B. Hydrobiomorpha bachmanni sp. nov.; C, D. Hydrobiomorpha corumbaensis; E, F. Hydrobiomorpha iguazu; G, H. Hydrobiomorpha irina irina; I, J. Hydrobiomorpha longa; K, L. Hydrobiomorpha rudesculpta; M, N. Hydrobiomorpha spinosa. A, C, E, G, I, K, M. Males; B, D, F, H, J, L, N. Females. Scale bar: 2 mm.	2026-08-11	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.		Zenodo	biologists	Urcola, Matías R.;Rodriguez, Georgina;Michat, Mariano C.;Torres, Patricia L. M.			
