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FIGURES 48–52. Lutrochus minutus n in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURES 48–52. Lutrochus minutus n. sp.: 48. Habitus, dorsal view; 49. Habitus, ventral view; 50. Habitus, lateral view; 51. Scutellum; 52. Elytra, showing sculpturing 53. Head, three-quarters view, showing shape of apical maxillary palpomere; 54. Aedeagus, dorsal and lateral views (scale bar = 0.62 mm).

FIGURES 55–60. Lutrochus violaceus n in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURES 55–60. Lutrochus violaceus n. sp.: 55. Habitus, dorsal view; 56. Habitus, ventral view; 57. Habitus, lateral view; 58. Protarsus; 59. Metatarsus; 60. Aedeagus, dorsal and lateral views (scale bar = 0.50 mm).

FIGURES 40–47. Lutrochus meridaensis n in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURES 40–47. Lutrochus meridaensis n. sp.: 40. Habitus, dorsal view; 41. Habitus, ventral view; 42. Habitus, lateral view; 43. Head, three-quarters view, showing shape of apical maxillary palpomere; 44. Mesotibia; 45. SEM of metasternum, showing medial bare patch; 46. SEM of scutellum; 47. Aedeagus, lateral view (scale bar = 0.62 mm).

FIGURES 27–33 in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURES 27–33. Lutrochus vestitus Sharp: 27. Habitus, dorsal view; 28. Habitus, ventral view; 29. Habitus, lateral view; 30. Head, ventral view, showing shape of apical maxillary palpomere; 31. Mesotibia, showing apical notch; 32. Metatarsus; 33. Aedeagus, dorsal and lateral views (scale bar = 0.62 mm).

FIGURES 20–26. Lutrochus gustafsoni n in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURES 20–26. Lutrochus gustafsoni n. sp.: 20. Habitus, dorsal view; 21. Habitus, ventral view; 22. Habitus, lateral view; 23. Protarsus; 24. Mesotarsus; 25. Metatarsus; 26. Aedeagus, dorsal and lateral views (scale bar = 0.62 mm).

FIGURES 34–39. Lutrochus maldonadoi n in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURES 34–39. Lutrochus maldonadoi n. sp.: 34. Habitus, dorsal view; 35. Habitus, ventral view; 36. Habitus, lateral view; 37. Head, three-quarters view, showing shape of apical maxillary palpomere; 38. Metatarsus; 39. Aedeagus, dorsal and lateral views (scale bar = 0.62 mm).

FIGURES 8–13 in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURES 8–13. Lutrochus acuminatus Grouvelle: 8. Habitus, dorsal view; 9. Habitus, ventral view; 10. Habitus, lateral view; 11. Head, three-quarters view, showing shape of apical maxillary palpomere; 12. Prosternum, ventral view; 13. Aedeagus, dorsal and lateral views (scale bar = 0.62 mm).

FIGURES 14–19. Lutrochus cauraensis n in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURES 14–19. Lutrochus cauraensis n. sp.: 14. Habitus, dorsal view; 15. Habitus, ventral view; 16. Habitus, lateral view; 17. Aedeagus, dorsal and lateral views (scale bar = 0.62 mm); 18. Protarsus; 19. Metatarsus.

FIGURES 4–7. 4 in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURES 4–7. 4. Map of Venezuela showing collection localities of L. acuminatus (red circles) and L. cauraensis (yellow square). 5. Map of Venezuela showing collection localities of L. vestitus (red circles). 6. Map of Venezuela showing collection localities of L. meridaensis (red circles), L. minutus (orange circles), and L. maldonadoi (yellow circles). 7. Map of Venezuela showing collection localities of L. violaceus (red circles) and L. gustafsoni (yellow circles).

FIGURE 1 in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURE 1. Habitat of Lutrochus acuminatus: Venezuela, Aragua State, Rio Castaño (collecting event VZ09-0106-01A). A) Arrow indicates a previously submerged log on which specimens were found (B).

FIGURE 3 in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURE 3. Habitat of Lutrochus species. A) L. meridaensis: Venezuela, Mérida State, Cascada Velo de la Novia; specimens were collected on the vertical wet rocks adjacent to the waterfall (collecting event VZ09-0719-01A). B) L.vestitus: Venezuela, Falcón State, Cataratas del Hueque; specimens were found in the exposed tree root mats along the margin (collecting event VZ09-0709-01B).

FIGURE 2 in A revision of the Lutrochidae (Coleoptera) of Venezuela, with description of six new species

FIGURE 2. Habitat of Lutrochus violaceus: A) Venezuela, Mérida State, 12 km SE Santo Domingo (collecting event VZ12- 0122-03B). Specimens (B) were found clinging to submerged stick and log debris (C).

FIGURE 18. Lutrochus grenadensis n in Review of the Lutrochidae (Coleoptera) of the Guianas and Lesser Antilles, with description of four new species

FIGURE 18. Lutrochus grenadensis n. sp. (St. George population): Aedeagus, dorsal and lateral views, showing probable injury (scale bar = 1.0 mm).

FIGURES 12–15. Lutrochus leeanneae n in Review of the Lutrochidae (Coleoptera) of the Guianas and Lesser Antilles, with description of four new species

FIGURES 12–15. Lutrochus leeanneae n. sp.: 12. Habitus, dorsal view; 13. Habitus, ventral view; 14. Habitus, lateral view; 15. Aedeagus, dorsal and lateral views (scale bar = 1.0 mm).

FIGURES 7–11. Lutrochus grenadensis n in Review of the Lutrochidae (Coleoptera) of the Guianas and Lesser Antilles, with description of four new species

FIGURES 7–11. Lutrochus grenadensis n.sp.: 7. Habitus, dorsal view; 8. Habitus, ventral view; 9. Habitus, lateral view; 10. Diagrammatic view of the protibia and tarsus, showing areas of dense pubescence (pubescent areas shaded in gray); 11. Aedeagus, dorsal and lateral views (scale bar = 1.0 mm).

FIGURES 3–6. Lutrochus funkae n in Review of the Lutrochidae (Coleoptera) of the Guianas and Lesser Antilles, with description of four new species

FIGURES 3–6. Lutrochus funkae n.sp.: 3. Habitus, dorsal view; 4. Habitus, ventral view; 5. Habitus, lateral view; 6. Aedeagus, dorsal and lateral views (scale bar = 1.0 mm).

FIGURES 1–2. 1 in Review of the Lutrochidae (Coleoptera) of the Guianas and Lesser Antilles, with description of four new species

FIGURES 1–2. 1. Map of northeastern South America showing collection localities of L. funkae, L. leeanneae, L. grenadensis, and L. wao. 2. Habitat of L. wao, collected in partially submerged leafpacks that were caught behind a fallen branch in a flowing forested stream.

FIGURES 19–23. Lutrochus wao n in Review of the Lutrochidae (Coleoptera) of the Guianas and Lesser Antilles, with description of four new species

FIGURES 19–23. Lutrochus wao n.sp.: 19. Habitus, dorsal view; 20. Habitus, ventral view; 21. Habitus, lateral view; 22. Diagrammatic view of the protibia and tarsus, showing areas of dense pubescence (pubescent areas shaded in gray); 23. Aedeagus, dorsal and lateral views (scale bar = 1.0 mm).

Fig. 3 in Rediscovery ofLutrochus laticepsCasey, 1893 (Coleoptera: Lutrochidae) and the Discovery ofDineutus productusRoberts, 1895 andDineutus serrulatus analisRégimbart, 1882 (Coleoptera: Gyrinidae) in Kansas, USA, with Notes on Habitat Preference

Fig. 3. Elk River just south of Longton, habitat. A) Pool beneath falls and river downstream, B) The falls.

Fig. 1 in Rediscovery ofLutrochus laticepsCasey, 1893 (Coleoptera: Lutrochidae) and the Discovery ofDineutus productusRoberts, 1895 andDineutus serrulatus analisRégimbart, 1882 (Coleoptera: Gyrinidae) in Kansas, USA, with Notes on Habitat Preference

Fig. 1. Map of Kansas with collection sites. Black circle = locality on Elk River South of Longton; gray circle = Elk Falls; white circles = additional localities sampled.