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FIGURES 55–67. Cloeodes penai. Nymph. 55 in The genus Cloeodes (Ephemeroptera: Baetidae) in Argentina with new generic synonymy and new species

FIGURES 55–67. Cloeodes penai. Nymph. 55, antennae. Mouthparts (Figs. 56–61): 56, labrum, left d.v., right v.v.; 57, left mandible v.v.; 58, right mandible v.v.; 59, hypopharynx v.v.; 60, maxilla v.v.; 61, labium, left d.v., right v.v. 62, leg I; 63, femur I apical margin; 64, tarsal claw I. 65, posterior margin of tergum IV. 66, gill IV. 67, paraproct.

FIGURES 31–42. Cloeodes incus n in The genus Cloeodes (Ephemeroptera: Baetidae) in Argentina with new generic synonymy and new species

FIGURES 31–42. Cloeodes incus n. comb. Nymph. Mouthparts (Figs. 31–36): 31, labrum d.v., left d.v., right v.v.; 32, left mandible v.v.; 33, right mandible v.v.; 34, hypopharynx v.v.; 35, maxilla v.v.; 36, labium, left d.v., right v.v. 37, leg I; 38, tarsal claw I. 39, posterior margin of tergum IV. 40, gill IV. 41, paraproct. 42, terminal filament, left cercus, right caudal filament.

FIGURES 43–51. Cloeodes opacus n in The genus Cloeodes (Ephemeroptera: Baetidae) in Argentina with new generic synonymy and new species

FIGURES 43–51. Cloeodes opacus n. sp. Nymph. 43, general view, dorsal. Mouthparts (Figs. 44–46): 44, labrum, left d.v., right v.v.; 45, labrum: anterior margin; 46, labium, left d.v., right v.v. 47, leg I; 48, dorsal margin of femur I. 49, posterior margin of tergum IV. 50, gill IV. 51, paraproct. Figs. 52–54. Cloeodes penai. Male imago: 52, fore wing; 53a, hind wing; 53b, hind wing detail; 54, genitalia v.v.

FIGURES 20–30. Cloeodes espinillo n in The genus Cloeodes (Ephemeroptera: Baetidae) in Argentina with new generic synonymy and new species

FIGURES 20–30. Cloeodes espinillo n. sp. Nymph. 20, general view. Mouthparts (Figs. 21–24): 21, labrum, left d.v., right v.v.; 22, left mandible v.v.; 23, hypopharynx v.v.; 24, labium, left d.v., right v.v. 25, leg I; 26, dorsal margin of femur I. 27, posterior margin of tergum IV; 28, sternum IV. 29, gill IV. 30, cercus.

FIGURES 15–19. Cloeodes espinillo n in The genus Cloeodes (Ephemeroptera: Baetidae) in Argentina with new generic synonymy and new species

FIGURES 15–19. Cloeodes espinillo n. sp. Male imago: 15, head and thorax, dorsal; 16, fore wing; 17a, hind wing;

FIGURES 5–14. Cloeodes barituensis n in The genus Cloeodes (Ephemeroptera: Baetidae) in Argentina with new generic synonymy and new species

FIGURES 5–14. Cloeodes barituensis n. sp. Nymph. 5, general view, dorsal. 6, antennae. Mouthparts (Figs. 7–10): 7, labrum, left d.v., right v.v.; 8, right mandible v.v.; 9, hypopharynx v.v.; 10, maxilla v.v. 11, leg I. 12, posterior margin of tergum IV. 13, gill IV. 14, terminal filament, left cercus, right caudal filament.

FIGURES 1–4. Cloeodes barituensis n in The genus Cloeodes (Ephemeroptera: Baetidae) in Argentina with new generic synonymy and new species

FIGURES 1–4. Cloeodes barituensis n. sp. Male imago. 1, head and thorax, d.v.; 2, fore wing; 3, genitalia v.v. Female imago. 4, fore wing.

FIGURES 50−52. Cloeodes itajara, male imago. 50. Dorsal view. 51 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 50−52. Cloeodes itajara, male imago. 50. Dorsal view. 51. Head and thorax, d.v. 52. Lateral view.

FIGURES 40−45 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 40−45. Cloeodes aymore, male and female imago. 40. Dorsal view, male. 41. Dorsal view, female. 42. Lateral view, male. 43. Head, lateral view, male. 44. Lateral view, female. 45. Genitalia, v.v., male.

FIGURES 29−34. Cloeodes aymore, nymph. 29. Fore leg, anterior surface. 30 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 29−34. Cloeodes aymore, nymph. 29. Fore leg, anterior surface. 30. Projections of femur apex (a, fore femur, b, mid femur, c, hind femur). 31. Subtending bristle, anterior surface. 32. Posterior margin of terga IV. 33. Gill IV (a, general appearance, b, details of gill margin). 34. Paraproct (d.v.).

FIGURES 23−28. Cloeodes aymore, nymph. 23 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 23−28. Cloeodes aymore, nymph. 23. Labrum (a, left d.v., right v.v., b, details of submarginal row of ventral setae). 24. Left mandible (d.v.). 25. Right mandible (d.v.). 26. Hypopharynx (d.v.). 27. Maxilla (v.v.). 28. Labium (a, left d.v., right v.v.).

FIGURES 17−22. Cloeodes itajara, nymph. 17. Fore leg, anterior surface. 18 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 17−22. Cloeodes itajara, nymph. 17. Fore leg, anterior surface. 18. Projections of femur apex (a, fore femur, b, mid femur, c, hind femur). 19. Subtending bristle, anterior surface. 20. Posterior margin of terga IV. 21. Gill IV (a, general appearance, b, details of gill margin). 22. Paraproct.

FIGURES 11−16. Cloeodes itajara, nymph. 11 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 11−16. Cloeodes itajara, nymph. 11. Labrum (a, left d.v., right v.v., b, details of submarginal row of ventral setae). 12. Left mandible (d.v.). 13. Right mandible (d.v.). 14. Hypopharynx (d.v.). 15. Maxilla (v.v.). 16. Labium (a, left d.v., right v.v., b, details of segment III of labial palp).

FIGURES 46−49 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 46−49. Wings and genitalia of new species of Cloeodes. 46. Wings of C. itajara (a, fore wing, b, hind wing). 47. Wings of C. aymore (a, fore wing, b, hind wing). 48. Male genitalia of C. itajara. 49. Male genitalia of C. aymore.

FIGURES 35−39. Cloeodes itajara, male imago. 35. Dorsal view. 36. Lateral view. 37 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 35−39. Cloeodes itajara, male imago. 35. Dorsal view. 36. Lateral view. 37. Head and thorax, d.v. 38. Abdominal terga V−VII, showing the black, triangular, anterolateral marks. 39. Thorax, lateral view, showing the metascutellar protuberance.

FIGURES 7−10. Cloeodes aymore, nymph. 7. Dorsal view. 8. Ventral view. 9 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 7−10. Cloeodes aymore, nymph. 7. Dorsal view. 8. Ventral view. 9. Dorsal view (intraspecific variation). 10. Ventral view (intraspecific variation).

FIGURES 4−6. Cloeodes itajara, nymph. 4. General habitus. 5 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 4−6. Cloeodes itajara, nymph. 4. General habitus. 5. Dorsal view, smooth antero-sublateral area of terga. 6. Gill coloration.

FIGURES 2−3 in Two new species of Cloeodes Traver (Ephemeroptera: Baetidae) from Espírito Santo, Southeastern Brazil

FIGURES 2−3. Geographic distribution of new species of Cloeodes from Espírito Santo. 2. Cloeodes itajara. 3. C. aymore.

FIGURES 26–35 in Three new species of the genus Cloeodes Traver (Ephemeroptera: Baetidae) from Uruguay

FIGURES 26–35. Cloeodes vaimaca sp. nov. Nymph. Mouthparts (Figs. 26–31): 26a, labrum, left d.v., right v.v.; 26b, labrum: apical setae; 27, left mandible v.v.; 28, right mandible v.v.; 29, hypopharynx v.v.; 30, maxilla v.v.; 31, labium, left d.v., right v.v. 32, leg I. 33, posterior margin of tergum IV. 34, paraproct. 35, gill IV.

FIGURES 4–14 in Three new species of the genus Cloeodes Traver (Ephemeroptera: Baetidae) from Uruguay

FIGURES 4–14. Cloeodes dialutoi sp. nov. Nymph. Mouthparts (Figs. 4–9): 4, labrum, left d.v., right v.v.; 5, left mandible v.v.; 6, right mandible v.v.; 7, hypopharynx v.v.; 8, maxilla v.v.; 9, labium, left d.v., right v.v. 10, leg I. 11, posterior margin of tergum IV. 12, paraproct. 13, gill IV. 14a, cercus and terminal filament; 14b, cercus, detail of setae.