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FIGURE 10 in Four new species of Hisonotus (Siluriformes: Loricariidae) from the upper rio Uruguay, southeastern South America, with a review of the genus in the rio Uruguay basin

FIGURE 10. Scanning electron micrograph of snout anterior rostral margin of Hisonotus leucophrys, MCN 12553, 37.4 mm SL. A—anterior view of rostrum; B—magnification of medial portion.

FIGURE 14 in Four new species of Hisonotus (Siluriformes: Loricariidae) from the upper rio Uruguay, southeastern South America, with a review of the genus in the rio Uruguay basin

FIGURE 14. Scanning electron micrograph of snout anterior rostral margin of Hisonotus montanus, MCP 41459, 41.4 mm SL. A—anterior view of rostrum; B—magnification of medial portion.

FIGURE 13 in Four new species of Hisonotus (Siluriformes: Loricariidae) from the upper rio Uruguay, southeastern South America, with a review of the genus in the rio Uruguay basin

FIGURE 13. Holotype of Hisonotus montanus, MCP 42578, female, 43.0 mm SL. Rio Rufino on highway SC-427 at city of Rio Rufino, Santa Catarina, Brazil.

FIGURE 19. Hisonotus ringueleti, MCP 11215 in Four new species of Hisonotus (Siluriformes: Loricariidae) from the upper rio Uruguay, southeastern South America, with a review of the genus in the rio Uruguay basin

FIGURE 19. Hisonotus ringueleti, MCP 11215, female, 37.0 mm SL. Arroio Quaraí-Mirim on road between Quaraí and Alegrete, Quaraí, Rio Grande do Sul, Brazil.

FIGURE 12 in Four new species of Hisonotus (Siluriformes: Loricariidae) from the upper rio Uruguay, southeastern South America, with a review of the genus in the rio Uruguay basin

FIGURE 12. Scanning electron micrograph of snout anterior rostral margin of Hisonotus megaloplax, MCP 41352, 40.9 mm SL. A—anterior view of rostrum; B—magnification of medial portion.

FIGURE 17 in Four new species of Hisonotus (Siluriformes: Loricariidae) from the upper rio Uruguay, southeastern South America, with a review of the genus in the rio Uruguay basin

FIGURE 17. Paratype of Hisonotus aky, AI 125, male, 34.5 mm SL. Anterior portion of body in ventrolateral view. Arrow indicates the developed fleshy flap on pelvic-fin unbranched ray of adult male.

FIGURE 18 in Four new species of Hisonotus (Siluriformes: Loricariidae) from the upper rio Uruguay, southeastern South America, with a review of the genus in the rio Uruguay basin

FIGURE 18. Anterior portion of axial skeleton in lateral view. A— Epactionotus bilineatus, MCP 29293, 36.5 mm SL, neural spine of seventh vertebra not contacting nuchal plate dorsally, and first proximal radial of dorsal fin contacting eighth vertebra. B— Hisonotus aky, MCP 41474, 37.2 mm SL, neural spine of seventh vertebra contacting nuchal plate, and first proximal radial of dorsal fin contacting the seventh vertebra. FR = first proximal radial; NP = nuchal plate; V = vertebra. Scale bar is 5 mm.

Figs. 37–39 in More New Species ofCyclocephalaDejean, 1821 from South America (Scarabaeidae: Dynastinae: Cyclocephalini)

Figs. 37–39. Cyclocephala saltini: 37) dorsal view of holotype; 38–39) parameres (caudal and lateral views).

Figs. 5–7 in More New Species ofCyclocephalaDejean, 1821 from South America (Scarabaeidae: Dynastinae: Cyclocephalini)

Figs. 5–7. Cyclocephala carlsoni: 5) dorsal view of holotype; 6–7) parameres (caudal and lateral views).

Figs. 21–25 in More New Species ofCyclocephalaDejean, 1821 from South America (Scarabaeidae: Dynastinae: Cyclocephalini)

Figs. 21–25. Cyclocephala hielkemaorum: 21) dorsal view of holotype; 22–23) parameres (caudal and lateral views); 24–25) right protarsus, median view, of 24) C. hielkemaorum and 25) C. longitarsis.

Figs. 1–4 in More New Species ofCyclocephalaDejean, 1821 from South America (Scarabaeidae: Dynastinae: Cyclocephalini)

Figs. 1–4. Cyclocephala acoma: 1) dorsal view of paratype; 2–3) parameres (caudal and lateral views); 4) right protarsus, median view.

Figs. 9–16 in More New Species ofCyclocephalaDejean, 1821 from South America (Scarabaeidae: Dynastinae: Cyclocephalini)

Figs. 9–16. Cyclocephala chiquitita: 9) dorsal view of holotype; 10–11) parameres (caudal and lateral views); 12) parameres of C. ovulum; 13–14) apex of right metatibia showing 13) thick spur in C. chiquitita and 14) more slender spur in C. ovulum; 15–16) left epipleuron (ventral view) of female of 15) C. chiquitita and 16) C. ovulum.

Fig. 25 in A New Genus and Species of Dynastinae (Coleoptera: Scarabaeidae) from the Galápagos Islands, Ecuador, other New Species of Cyclocephalini, Pentodontini, and Phileurini from South America, and a Revised Key to the Genera of New World Pentodontini

Fig. 25. La Esperanza, Cundinamarca, Colombia, type locality for Hemiphileurus cornutus. Photograph courtesy of Stuart Oswald (Bogotá, Colombia).

Fig. 20 in A New Genus and Species of Dynastinae (Coleoptera: Scarabaeidae) from the Galápagos Islands, Ecuador, other New Species of Cyclocephalini, Pentodontini, and Phileurini from South America, and a Revised Key to the Genera of New World Pentodontini

Fig. 20. El Junco area on Isla San Cristóbal, Galápagos Islands, possible habitat for Adelaeus anachoretus. Photograph courtesy of K. Thalia Grant (Isla Santa Cruz, Galapágos Islands).

Fig. 12 in A New Genus and Species of Dynastinae (Coleoptera: Scarabaeidae) from the Galápagos Islands, Ecuador, other New Species of Cyclocephalini, Pentodontini, and Phileurini from South America, and a Revised Key to the Genera of New World Pentodontini

Fig. 12. Salt catchments at Salineras de Maras, Cusco, Peru, type locality for Hiekeianus halophilus. Photograph by M. L. Jameson.

Fig. 8 in A New Genus and Species of Dynastinae (Coleoptera: Scarabaeidae) from the Galápagos Islands, Ecuador, other New Species of Cyclocephalini, Pentodontini, and Phileurini from South America, and a Revised Key to the Genera of New World Pentodontini

Fig. 8. Estirão do Equador, Amazonas, Brazil, type locality for Stenocrates caiporae. Image courtesy of Google Maps and Diogobgz via Share Alike.

Fig. 4 in A New Genus and Species of Dynastinae (Coleoptera: Scarabaeidae) from the Galápagos Islands, Ecuador, other New Species of Cyclocephalini, Pentodontini, and Phileurini from South America, and a Revised Key to the Genera of New World Pentodontini

Fig. 4. Type locality for Cyclocephala dupuisi near Flora and Fauna Lodge near Buena Vista, Santa Cruz, Bolivia. Photograph by BCR.

Figs. 1–3. Cyclocephala dupuisi, holotype. 1 in A New Genus and Species of Dynastinae (Coleoptera: Scarabaeidae) from the Galápagos Islands, Ecuador, other New Species of Cyclocephalini, Pentodontini, and Phileurini from South America, and a Revised Key to the Genera of New World Pentodontini

Figs. 1–3. Cyclocephala dupuisi, holotype. 1) Habitus; 2) Parameres, caudal view; 3) Parameres, lateral view.

Figs. 21–24. Hemiphileurus cornutus, holotype. 21 in A New Genus and Species of Dynastinae (Coleoptera: Scarabaeidae) from the Galápagos Islands, Ecuador, other New Species of Cyclocephalini, Pentodontini, and Phileurini from South America, and a Revised Key to the Genera of New World Pentodontini

Figs. 21–24. Hemiphileurus cornutus, holotype. 21) Habitus; 22) Anterolateral view; 23) Parameres, caudal view;

Figs. 13–15. Neoryctes similis, holotype. 13 in A New Genus and Species of Dynastinae (Coleoptera: Scarabaeidae) from the Galápagos Islands, Ecuador, other New Species of Cyclocephalini, Pentodontini, and Phileurini from South America, and a Revised Key to the Genera of New World Pentodontini

Figs. 13–15. Neoryctes similis, holotype. 13) Habitus; 14) Parameres, caudal view; 15) Parameres, lateral view.