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120 results for “whirligig beetles”
Figures 13–17 in First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)
Figures 13–17. Enhydrus sulcatus, first-instar larva. (13) Left metathoracic leg, anterior view, (14) right metathoracic leg, posterior view, (15) abdominal segment X, ventral view, (16) medial hook, lateral view, (17) lateral hook, lateral view. Numbers and lowercase letters indicate primary setae and pores, respectively. Additional setae on coxa indicated by solid squares. Additional pore on trochanter indicated by solid triangle. Sensilla on abdominal segment X not labeled. Scale bars = 0.15 mm.
Figures 1–3 in First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)
Figures 1–3. Enhydrus sulcatus, first-instar larva. (1) Habitus, dorsal view, (2) head, dorsal view, (3) abdomen, ventral view. Scale bars = 2.00 mm for Fig. 1 and 0.50 mm for Figs. 2 and 3.
Figures 6–12 in First larval description and chaetotaxic analysis of the neotropical whirligig beetle genus Enhydrus Laporte (Coleoptera, Gyrinidae)
Figures 6–12. Enhydrus sulcatus, first-instar larva. (6) Right antenna, dorsal view, (7) left antenna, ventral view, (8) right mandible, dorsal view, (9) right maxilla, dorsal view, (10) left maxilla, ventral view, (11) labium, dorsal view, (12) labium, ventral view. Numbers and lowercase letters indicate primary setae and pores, respectively. Additional setae indicated by solid squares (except for minute additional setae on the mandible which are not labeled). SP, spinulae. Scale bars = 0.15 mm.
FIGURES 23–26 in Description of the immature stages of the Neotropical whirligig beetle Gyrinus (Neogyrinus) rozei Ochs, 1953 (Coleoptera: Gyrinidae) and first report of the parasitoid wasp Melanosmicra sp. (Hymenoptera: Chalcididae) on a Gyrinus species
FIGURES 23–26. Gyrinus rozei, first-instar larva. 23. Left metathoracic leg, anterior view. 24. Right metathoracic leg, posterior view. 25. Abdominal segment X and hooks, ventral view. 26. Abdominal segment X and hooks, lateral view. Scale bars 0.3 mm (Figs 25, 26), 0.5 mm (Figs 23, 24).
FIGURES 14–15 in Description of the immature stages of the Neotropical whirligig beetle Gyrinus (Neogyrinus) rozei Ochs, 1953 (Coleoptera: Gyrinidae) and first report of the parasitoid wasp Melanosmicra sp. (Hymenoptera: Chalcididae) on a Gyrinus species
FIGURES 14–15. Gyrinus rozei, first-instar larva, cephalic capsule. 14. Dorsal view. 15. Ventral view. Numbers and lowercase letters indicate primary setae and pores. Note: frontoclypeus (FR), parietal (PA) and egg bursters (EB). Scale bar 0.5 mm.
FIGURES 7–10 in Description of the immature stages of the Neotropical whirligig beetle Gyrinus (Neogyrinus) rozei Ochs, 1953 (Coleoptera: Gyrinidae) and first report of the parasitoid wasp Melanosmicra sp. (Hymenoptera: Chalcididae) on a Gyrinus species
FIGURES 7–10. Eggs of Gyrinus rozei analyzed under scanning electron microscopy. 7. Dorsal view. 8. Micropyle (anterior pole). 9. Dorsal region amplified showing details of cells of chorion with superficial circular grooves. 10. Lateral region showing chorion details. Scale bars 200 µm (Fig. 7), 20 µm (Figs 8, 9) and 50 µm (Fig. 10).
FIGURES 16–22 in Description of the immature stages of the Neotropical whirligig beetle Gyrinus (Neogyrinus) rozei Ochs, 1953 (Coleoptera: Gyrinidae) and first report of the parasitoid wasp Melanosmicra sp. (Hymenoptera: Chalcididae) on a Gyrinus species
FIGURES 16–22. Gyrinus rozei, first-instar larva. 16. Right antenna, dorsal view. 17. Left antenna, ventral view. 18. Right maxilla, dorsal view. 19. Left maxilla, ventral view. 20. Labium, dorsal view. 21. Labium, ventral view. 22. Right mandible, dorsal view. Numbers and lowercase letters indicate primary setae and pores. Note: antenna (AN), labium (LA), mandible (MN), maxilla (MX). Scale bars 0.1 mm (Figs 18, 19, 22), 0.3 mm (Figs1 6, 17, 20, 21).
FIGURES 33–38. Gyrinus rozei, pupal cocoons. 33–36 in Description of the immature stages of the Neotropical whirligig beetle Gyrinus (Neogyrinus) rozei Ochs, 1953 (Coleoptera: Gyrinidae) and first report of the parasitoid wasp Melanosmicra sp. (Hymenoptera: Chalcididae) on a Gyrinus species
FIGURES 33–38. Gyrinus rozei, pupal cocoons. 33–36. Cocoons constructed with different parts of the aquatic monocot used as substrate. 37. Cocoon with exit hole made by the parasitoid wasp Melanosmicra sp. (Hymenoptera: Chalcididae). 38. Types of cocoons on the substrate.
Figs 76–81. Type specimens and associated labels. 76 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 76–81. Type specimens and associated labels. 76 – Gyrinus amazonicus Ochs, 1958, paratype male (BMNH). 77 – G. guianus Ochs, 1935, holotype female (BMNH). 78 – G. racenisi Ochs, 1953, paratype female (SMF). 79 – G. rozei Ochs, 1953, paratype male (SMF). 80 – G. venezolensis Ochs, 1953, paratypes, male and female (SMF). 81 – G. opalinus Régimbart, 1883, syntype male and labels (MNHN).
Figs 51–59 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 51–59. Ventral view of gonocoxae of Venezuelan Gyrinus species, not to scale. 51–56 – Neogyrinus species. 51 – G. gibbus Aubé, 1838 from Caracas valley, Venezuela (FMNH). 52 – G. gibbus from Amazonian Venezuela: Amazonas stream along Rio Sipapo (KBMC). 53 – G. ovatus Aubé, 1838 from Venezuela: Falcón: W. Curimagua, Blackwater Lagoon. 54 – G. guianus Ochs, 1935 from Amazonian Venezuela:Amazonas: river near Orinoco /Sipapo confluence (KBMC). 55 – G. rozei Ochs, 1953. 56 – G. sabanensis sp. nov. 57–59 – Oreogyrinus species: 57 – G. iridinus sp. nov. 58 – G. venezolensis Ochs, 1953. 59 – G. vinolentus sp. nov.
Figs 18–21 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 18–21. SEM images of elytral interval reticulation and strial punctures. 18–19 – Gyrinus gibbus Aubé, 1838. 18 – intervals II and III, striae I–III. 19 – intervals IX and X, striae VIII–X. 20–21 – G. ovatus Aubé, 1838. 20 – intervals II and III, striae I–III. 21 – intervals IX and X, striae VIII–X.
Figs 1–6 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 1–6. Dorsal habitus of Neogyrinus species, scale bar = 1 mm. 1 – Gyrinus sabanensis sp. nov. 2 – G. gibbus Aubé, 1838 from Amazonian Venezuela. 3 – G. ovatus Aubé, 1838. 4 – G. guianus Ochs, 1935. 5 – G. gibbus 'var. apicalis' Sharp, 1877 from Caracas valley, Venezuela. 6 – G. rozei Ochs, 1953.
Figs 25–28 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 25–28. SEM images of elytral interval reticulation and strial punctures. 25–26 – G. guianus Ochs, 1935. 25 – intervals II and III, striae I–III. 26 – intervals IX and X, striae VIII–X. 27–28 – G. rozei Ochs, 1953. 27 – intervals II and III, striae I–III. 28 – intervals IX and X, striae VIII–X.
Figs 39–40 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 39–40. SEM images of the pronotum showing sculpturing of wrinkles and riffles of the lateral margins, arrows indicate pronotal transverse crease. 39 – Gyrinus venezolensis Ochs, 1953. 40 – G. vinolentus sp. nov.
Figs 12–17 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 12–17. Dorsal and lateralview of the aedeagus of G. gibbus Aubé, 1838 specimensfrom throughout itsrange, not to scale. 12 – historical specimen from Mexico (FMNH). 13 – Caracas valley, Venezuela 'var. apicalis' Sharp, 1877 (FMNH). 14 – Amazonian Venezuela:Amazonas, river near Orinoco /Sipapo confluence (KBMC). 15 – Amazonian Peru: Mariscal Ramón Castilla, Estiron, Rio Ampiácu (FSCA). 16 – Amazonian Bolivia: Beni, Chacobo indigenous village, Río Benicito (FSCA). 17 – São Paulo (FMNH).
Figs 22–24. 22–23 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 22–24. 22–23 – SEM images of G. guianus Ochs, 1935 elytral morphology. 22 – elytron, box indicates region shown in Fig. 23, scale bar = 1 mm. 23 – elytral apex, arrow indicates medial pre-apical plica. 24 – elytron of G. rozei Ochs, 1953, scale bar = 1 mm.
Figs 7–11. 7–9 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 7–11. 7–9 – SEM images of Gyrinus ovatus Aubé, 1838 elytral morphology. 7 – elytron, box indicates region shown in Fig. 8, scale bar = 1 mm. 8 – elytral apex, box indicates region shown in Fig. 9. 9 – denticle of epipleural angle of elytral apex. 10–11 – SEM images of G. gibbus Aubé, 1838 elytral morphology. 10 – elytron, box indicates region shown in Fig. 11. 11 – elytral apex of G. gibbus, showing complete border.
Figs 47–50 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 47–50. Dorsal and lateral view of the aedeagus of Oreogyrinus species, not to scale. 47 – Gyrinus colombicus Régimbart, 1883, syntype (MNHN). 48 – G. venezolensis Ochs, 1953. 49 – G. vinolentus sp. nov. 50 – G. iridinus sp. nov.
Figs 68–71 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 68–71. Habitat of Gyrinus species in the Guiana Shield region of Venezuela. 68 – Bolívar State, Gran Sabana, collecting event AS-08-063, habitat of G. rozei Ochs, 1953. 69 – Bolívar State, Gran Sabana, collecting event AS- 08-066, habitat of G. sabanensis sp. nov. 70 – Amazonas, tributary of the Rio Sipapo, collecting event VZ09-0116- 02X, habitatof G. guianus Ochs, 1935 and G. gibbus Aubé, 1838. 71 – Bolívar State, 25 km E. El Burro, collecting event AS-08-077, habitatof G. gibbus.
Figs 33–38 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)
Figs 33–38. Dorsal habitus of Oreogyrinus species, scale bar = 1 mm. 33 – Gyrinusvenezolensis Ochs, 1953, female. 34 – G. venezolensis, male. 35 – G. vinolentus sp. nov. female. 36 – G. vinolentus, male. 37 – G. iridinus sp. nov., female paratype. 38 – G. iridinus, male holotype.
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