FIGURES 12–13. Habitus and male genitalia of holotypes. 12. Hydrochus potenspiculatus n. sp. 13. Hydrochus clandestinus n. sp.Published as part of Perkins, Philip D., 2021, Taxonomy of water beetles in the genus Hydrochus Leach, 1817, from Bolivia, Brazil and Paraguay (Coleoptera: Hydrochidae), pp. 1-93 in Zootaxa 4994 (1) on page 59, DOI: 10.11646/zootaxa.4994.1.1, http://zenodo.org/record/504326
FIGURE 6. Hydrochus maximus n. sp., habitus and male genitalia of holotype.Published as part of Perk...
FIGURE 2. Dorsal habitus of Hydrochus species.Published as part of Perkins, Philip D., 2019, Taxonom...
FIGURES 25–27. 25. Hydrochus aeruginosus n. sp., holotype. 26. Hydrochus variolatus LeConte, type la...
FIGURES 11–12. Habitus and male genitalia of holotypes. 11. Hydrochus perpunctatus n. sp. 12. Hydroc...
FIGURES 10–11. Habitus and male genitalia of holotypes. 10. Hydrochus usualis n. sp. 11. Hydrochus m...
FIGURES 48–49. Habitus and male genitalia of holotypes. 48. Hydrochus sculptissimus n. sp. 49. Hydro...
FIGURES 44–45. Habitus and male genitalia of holotypes. 44. Hydrochus longissimus n. sp. 45. Hydroch...
FIGURES 19–20. Habitus and male genitalia of holotypes. 19. Hydrochus elineae Makhan, non-type. 20. ...
FIGURES 9–10. Habitus and male genitalia. 9. Hydrochus brianbrowni Makhan. 10. Hydrochus nayaritensi...
FIGURE 32. Hydrochus collaris n. sp., habitus and male genitalia of holotype.Published as part of Pe...
FIGURE 1. Dorsal habitus of Hydrochus species.Published as part of Perkins, Philip D., 2019, Taxonom...
FIGURES 4A–B. Male genitalia characters of (A) H. pseudosecretus Oliva (ventral); (B) H. sagittarius...
FIGURES 21–22. Habitus and male genitalia. 21. Hydrochus beeneni Makhan, non-type Panama. 22. Hydroc...
FIGURES 6A–C. (A) Male genitalia of H. ducalis Knisch, with parameres spread, showing shape of aedea...
FIGURE 27. Hydrochus kellymilleri n. sp., habitus and male genitalia of holotype.Published as part o...
FIGURE 6. Hydrochus maximus n. sp., habitus and male genitalia of holotype.Published as part of Perk...
FIGURE 2. Dorsal habitus of Hydrochus species.Published as part of Perkins, Philip D., 2019, Taxonom...
FIGURES 25–27. 25. Hydrochus aeruginosus n. sp., holotype. 26. Hydrochus variolatus LeConte, type la...
FIGURES 11–12. Habitus and male genitalia of holotypes. 11. Hydrochus perpunctatus n. sp. 12. Hydroc...
FIGURES 10–11. Habitus and male genitalia of holotypes. 10. Hydrochus usualis n. sp. 11. Hydrochus m...
FIGURES 48–49. Habitus and male genitalia of holotypes. 48. Hydrochus sculptissimus n. sp. 49. Hydro...
FIGURES 44–45. Habitus and male genitalia of holotypes. 44. Hydrochus longissimus n. sp. 45. Hydroch...
FIGURES 19–20. Habitus and male genitalia of holotypes. 19. Hydrochus elineae Makhan, non-type. 20. ...
FIGURES 9–10. Habitus and male genitalia. 9. Hydrochus brianbrowni Makhan. 10. Hydrochus nayaritensi...
FIGURE 32. Hydrochus collaris n. sp., habitus and male genitalia of holotype.Published as part of Pe...
FIGURE 1. Dorsal habitus of Hydrochus species.Published as part of Perkins, Philip D., 2019, Taxonom...
FIGURES 4A–B. Male genitalia characters of (A) H. pseudosecretus Oliva (ventral); (B) H. sagittarius...
FIGURES 21–22. Habitus and male genitalia. 21. Hydrochus beeneni Makhan, non-type Panama. 22. Hydroc...
FIGURES 6A–C. (A) Male genitalia of H. ducalis Knisch, with parameres spread, showing shape of aedea...
FIGURE 27. Hydrochus kellymilleri n. sp., habitus and male genitalia of holotype.Published as part o...
FIGURE 6. Hydrochus maximus n. sp., habitus and male genitalia of holotype.Published as part of Perk...
FIGURE 2. Dorsal habitus of Hydrochus species.Published as part of Perkins, Philip D., 2019, Taxonom...
FIGURES 25–27. 25. Hydrochus aeruginosus n. sp., holotype. 26. Hydrochus variolatus LeConte, type la...