FIGURES 11–12. Habitus and male genitalia of holotypes. 11. Hydrochus perpunctatus n. sp. 12. Hydrochus panamensis n. sp.Published as part of Perkins, Philip D., 2021, Taxonomy of Central American water beetles in the genus Hydrochus Leach, 1817 (Coleoptera: Hydrochidae), pp. 459-503 in Zootaxa 4974 (3) on page 486, DOI: 10.11646/zootaxa.4974.3.2, http://zenodo.org/record/477783
FIGURES 4A–B. Male genitalia characters of (A) H. pseudosecretus Oliva (ventral); (B) H. sagittarius...
FIGURE 27. Hydrochus kellymilleri n. sp., habitus and male genitalia of holotype.Published as part o...
FIGURE 9. Hydrochus lescheni n. sp., habitus and male genitalia of holotype.Published as part of Per...
FIGURES 12–13. Habitus and male genitalia of holotypes. 12. Hydrochus potenspiculatus n. sp. 13. Hyd...
FIGURES 10–11. Habitus and male genitalia of holotypes. 10. Hydrochus usualis n. sp. 11. Hydrochus m...
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...
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 21–22. Habitus and male genitalia. 21. Hydrochus beeneni Makhan, non-type Panama. 22. Hydroc...
FIGURE 32. Hydrochus collaris n. sp., habitus and male genitalia of holotype.Published as part of Pe...
FIGURE 6. Hydrochus maximus n. sp., habitus and male genitalia of holotype.Published as part of Perk...
FIGURES 25–27. 25. Hydrochus aeruginosus n. sp., holotype. 26. Hydrochus variolatus LeConte, type la...
FIGURE 1. Dorsal habitus of Hydrochus species.Published as part of Perkins, Philip D., 2019, Taxonom...
FIGURES 6A–C. (A) Male genitalia of H. ducalis Knisch, with parameres spread, showing shape of aedea...
FIGURES 4A–B. Male genitalia characters of (A) H. pseudosecretus Oliva (ventral); (B) H. sagittarius...
FIGURE 27. Hydrochus kellymilleri n. sp., habitus and male genitalia of holotype.Published as part o...
FIGURE 9. Hydrochus lescheni n. sp., habitus and male genitalia of holotype.Published as part of Per...
FIGURES 12–13. Habitus and male genitalia of holotypes. 12. Hydrochus potenspiculatus n. sp. 13. Hyd...
FIGURES 10–11. Habitus and male genitalia of holotypes. 10. Hydrochus usualis n. sp. 11. Hydrochus m...
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...
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 21–22. Habitus and male genitalia. 21. Hydrochus beeneni Makhan, non-type Panama. 22. Hydroc...
FIGURE 32. Hydrochus collaris n. sp., habitus and male genitalia of holotype.Published as part of Pe...
FIGURE 6. Hydrochus maximus n. sp., habitus and male genitalia of holotype.Published as part of Perk...
FIGURES 25–27. 25. Hydrochus aeruginosus n. sp., holotype. 26. Hydrochus variolatus LeConte, type la...
FIGURE 1. Dorsal habitus of Hydrochus species.Published as part of Perkins, Philip D., 2019, Taxonom...
FIGURES 6A–C. (A) Male genitalia of H. ducalis Knisch, with parameres spread, showing shape of aedea...
FIGURES 4A–B. Male genitalia characters of (A) H. pseudosecretus Oliva (ventral); (B) H. sagittarius...
FIGURE 27. Hydrochus kellymilleri n. sp., habitus and male genitalia of holotype.Published as part o...
FIGURE 9. Hydrochus lescheni n. sp., habitus and male genitalia of holotype.Published as part of Per...