FIGURES 1 – 9. Figs. 1 – 2: Hind wings from two female paratypes of Ulmeritoides fidalgoi. Figs. 3 – 9: Hagenulus marshalli sp. n., male: 3, forewing; 4, hind wing (proportional); 5, hind wing enlarged; 6, lateral outline of head and thorax showing position of hind wing; 7, genitalia, ventral view; 8, detail of penis lobe; 9, lateral view of abdominal segments 4 – 6. Concave longitudinal veins stippled in Figs. 1 – 5
FIGURES 2–4. Thraulodes solstitium sp. nov., male imago: 2) habitus, (dorsal view); 3) head and thor...
FIGURES 5–8. Hermanella angeli sp nov., male imago. 5a. forewing; 5b. color of C and Sc area of fore...
FIGURES 1 – 5. Thraulodes jones sp. nov. Male imago. 1. Fore leg. 2. Forewing. 3. Hind wing. 4 — Abd...
FIGURES 5–9. Ulmeritoides angelus sp. nov., male imago. 5. fore wing; 6. hind wing; 7. hind wing (en...
FIGURES 5–9. Ulmeritoides aurantifrons sp. nov., (5) Forewing; (6) Hind wing; (7) Hind wing enlarged...
FIGURE 10 – 15, holotype of Thraulus costalis: 10, fore wing; 11, hind wing enlarged (actual size ab...
FIGURES 14 – 17. Ulmeritoides passorum. 14 – 16, female imago; 17, nymph. 14, lateral view; 15, fore...
FIGURES 4 – 7. Ulmeritoides amajari sp. nov., male imago. 4, forewing; 5, hind wing; 5 a, hind wing ...
FIGURE 6. Hagenulopsis perere sp. nov., nymph. (A) Female in dorsal habitus; (B) wings pad; (C) hind...
FIGURES 15 – 18. Ulmeritoides angelus sp. nov., imago and subimago. 15. male subimago; 16. male imag...
FIGURES 8–13. Ulmeritoides amajari sp. nov., nymph. 8, labrum; 8a, detail of anterior margin of labr...
FIGURE 3. Male imagos, wings. A–C) Simothraulopsis gracilianus sp. nov. A, forewing; B, hind wing; C...
FIGURES 8 – 13. Ulmeritoides amajari sp. nov., nymph. 8, labrum; 8 a, detail of anterior margin of l...
FIGURES 1 – 11. Ulmeritoides uruguayensis: 1, labrum; 2, left mandible (dorsal view); 3, right maxil...
FIGURE 9. Thraulodes Ulmer (Ephemeroptera: Leptophlebiidae), male imago, fore and hind wings. A) Thr...
FIGURES 2–4. Thraulodes solstitium sp. nov., male imago: 2) habitus, (dorsal view); 3) head and thor...
FIGURES 5–8. Hermanella angeli sp nov., male imago. 5a. forewing; 5b. color of C and Sc area of fore...
FIGURES 1 – 5. Thraulodes jones sp. nov. Male imago. 1. Fore leg. 2. Forewing. 3. Hind wing. 4 — Abd...
FIGURES 5–9. Ulmeritoides angelus sp. nov., male imago. 5. fore wing; 6. hind wing; 7. hind wing (en...
FIGURES 5–9. Ulmeritoides aurantifrons sp. nov., (5) Forewing; (6) Hind wing; (7) Hind wing enlarged...
FIGURE 10 – 15, holotype of Thraulus costalis: 10, fore wing; 11, hind wing enlarged (actual size ab...
FIGURES 14 – 17. Ulmeritoides passorum. 14 – 16, female imago; 17, nymph. 14, lateral view; 15, fore...
FIGURES 4 – 7. Ulmeritoides amajari sp. nov., male imago. 4, forewing; 5, hind wing; 5 a, hind wing ...
FIGURE 6. Hagenulopsis perere sp. nov., nymph. (A) Female in dorsal habitus; (B) wings pad; (C) hind...
FIGURES 15 – 18. Ulmeritoides angelus sp. nov., imago and subimago. 15. male subimago; 16. male imag...
FIGURES 8–13. Ulmeritoides amajari sp. nov., nymph. 8, labrum; 8a, detail of anterior margin of labr...
FIGURE 3. Male imagos, wings. A–C) Simothraulopsis gracilianus sp. nov. A, forewing; B, hind wing; C...
FIGURES 8 – 13. Ulmeritoides amajari sp. nov., nymph. 8, labrum; 8 a, detail of anterior margin of l...
FIGURES 1 – 11. Ulmeritoides uruguayensis: 1, labrum; 2, left mandible (dorsal view); 3, right maxil...
FIGURE 9. Thraulodes Ulmer (Ephemeroptera: Leptophlebiidae), male imago, fore and hind wings. A) Thr...
FIGURES 2–4. Thraulodes solstitium sp. nov., male imago: 2) habitus, (dorsal view); 3) head and thor...
FIGURES 5–8. Hermanella angeli sp nov., male imago. 5a. forewing; 5b. color of C and Sc area of fore...
FIGURES 1 – 5. Thraulodes jones sp. nov. Male imago. 1. Fore leg. 2. Forewing. 3. Hind wing. 4 — Abd...