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Figs 43–46 in Review of the whirligig beetle genus Gyrinus of Venezuela (Coleoptera: Gyrinidae)

Figs 43–46. SEM images of elytral interval reticulation and strial punctures. 43–44 – Gyrinus venezolensis Ochs, 1953. 43 – intervals II and III, striae I–III. 44 – intervals IX and X, striae VIII–X. 45–46 – G. vinolentus sp. nov. 45 – intervals II and III, striae I–III. 46 – intervals IX and X, striae VIII–X.

Fig. 8 in The sperm aggregation in a whirligig beetle (Coleoptera, Gyrinidae): structure, functions, and comparison with related taxa

Fig. 8 Phylogenetic relationships of Adephaga and the sperm aggregation. Phylogenies of (A) Gyrinidae (Obtained and modified from Miller & Bergsten, 2012) and (B) Adephaga (Obtained and modified from Gustafson et al., 2020). Forms of sperm aggregation are represented in the phylogenetic trees. Schematic representations based from (a) this study, (b) Dallai & Afzelius, 1985, (c) Breland & Simmons,

Fig. 3 in The sperm aggregation in a whirligig beetle (Coleoptera, Gyrinidae): structure, functions, and comparison with related taxa

Fig. 3 Spermatozoa and first sperm bundle of Gyretes sp. extracted from the efferent ducts. Photographs under LM. A. Individualized spermatozoid. The arrow indicates the transition between the nucleus (n) and flagellum (f). B–D. Nuclei stained with DAPI. B. Observe the lateral extension of the n in the posterior extremity (arrow). C. Mag-

Fig. 1 in The sperm aggregation in a whirligig beetle (Coleoptera, Gyrinidae): structure, functions, and comparison with related taxa

Fig. 1 Spermatogenesis of Gyretes sp. Histological sections under LM. A. Spermatogonia. B–J. testicular cysts at different stages of development. B. Spermatocytes. C, D. Younger spermatids. E–I. Elongation of the cytoplasm and then of the nucleus (n) of the spermatids. Note in (E) the young spermatids with nebenkern (nb), which will give rise to mitochondrial derivatives. J. Cyst at the end of sper-

Fig. 2 in The sperm aggregation in a whirligig beetle (Coleoptera, Gyrinidae): structure, functions, and comparison with related taxa

Fig. 2 Male reproductive tract of Gyretes sp. A. General view of the reproductive structures: part of a testis (t), efferent duct (ed), vasa deferentia (vd), and accessory glands (ag) (one testis, efferent and ejaculatory ducts (ed) were removed). The yellow dotted lines indicate the approximate region shown in the histological sections. Longitudinal (B–D) and transversal (E) sections under LM. B, C. Sper-

Fig. 4 in The sperm aggregation in a whirligig beetle (Coleoptera, Gyrinidae): structure, functions, and comparison with related taxa

Fig. 4 Secondary aggregation of the spermatozoa of Gyretes sp. extracted from the second portion of the vasa deferentia. Photographs under LM (A–C) and SEM (D–F). A. A complete sperm aggregate showing the spermatostyle (sp) and the spermatozoa. B, E, F. The

Fig. 15 in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 15. Map showing distribution of species in the subgenus Rhomborhynchus. Triangles = P. depressus; circle = P. misoolensis.

Fig. 12. Porrorhynchus species. P in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 12. Porrorhynchus species. P. depressus from Omo River, Gulf Province, Papua New Guinea: Aedeagus in A) Dorsal view, scale bar = 1 mm, B) Ventral view, C) Lateral view, and D) Dorsal habitus, scale bar = 5 mm. P. depressus from Lorentz River, southwestern Irian Jaya: Aedeagus in E) Dorsal view, scale bar = 1 mm, F) Ventral view, G) Lateral view, and H) Dorsal habitus, scale bar = 5 mm. P. depressus from Nabire, western Irian Jaya: Aedeagus in I) Dorsal view, scale bar = 1 mm, J) Ventral view, K) Lateral view, and L) Dorsal habitus, scale bar = 5 mm. P. misoolensis: Aedeagus in M) Dorsal view, scale bar = 1 mm, N) Ventral view, O) Lateral view, and P) Dorsal habitus, scale bar = 5 mm.

Fig. 11. Porrorhynchus species. P in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 11. Porrorhynchus species. P. depressus from Gulf Province, Papua New Guinea: A) Protarsus, B) Metacoxal apex, C) Maxillary (above) and labial (below) palpi, D) Mesotarsal claw. P. depressus from the Lorentz River, southwestern Irian Jaya: E) Protarsus, F) Metacoxal apex, G) Maxillary (above) and labial (below) palpi, H) Mesotarsal claw. P. depressus from Nabire, western Irian Jaya: I) Protarsus, J) Metacoxal apex, K) Maxillary (above) and labial (below) palpi, L) Mesotarsal claws. P. misoolensis: M) Protarsus, N) Metacoxal apex, O) Maxillary (above) and labial (below) palpi, P) Mesotarsal claws. Scale bars = 0.5 mm.

Fig. 8 in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 8. Porrorhynchus marginatus. Specimen from Chumphon, Thailand: A) Protarsus, scale bar = 1 mm, B) Metacoxal apex, scale bar = 0.5 mm, C) Mesocoxal apex, scale bar 0.5 mm, D) Maxillary (above) and labial (below) palpi, scale bar = 0.5 mm, E) Mesotarsal claws, scale bar = 0.5 mm. Specimen from Khammouane, Laos: F) Protarsus, scale bar = 1 mm, G) Metacoxal apex, scale bar = 0.5 mm, H) Mesocoxal apex, scale bar 0.5 mm, I) Maxillary (above) and labial (below) palpi, scale bar = 0.5 mm, J) Mesotarsal claws, scale bar = 0.5 mm. Specimen from Dac Lac, Vietnam: K) Protarsus, scale bar = 1 mm, L) Metacoxal apex, scale bar = 0.5 mm, M) Mesocoxal apex, scale bar = 0.5 mm, N) Maxillary (above) and labial (below) palpi, scale bar = 0.5 mm, O) Mesotarsal claws, scale bar = 0.5 mm. Specimen from East Kalimantan, Malaysia: P) Protarsus, scale bar = 1 mm, Q) Metacoxal apex, scale bar = 0.5 mm, R) Mesocoxal apex, scale bar 0.5 = mm, S) Maxillary (above) and labial (below) palpi, scale bar = 0.5 mm, T) Mesotarsal claws, scale bar = 0.5 mm. Specimen from Manna, Sumatra: U) Protarsus, scale bar = 1 mm, V) Metacoxal apex, scale bar = 0.5 mm, W) Mesocoxal apex, scale bar = 0.5 mm, X) Maxillary (above) and labial (below) palpi, scale bar = 0.5 mm. Specimen from Java: Y) Protarsus, scale bar = 1 mm, Z) Metacoxal apex, scale bar = 0.5 mm, AA) Mesocoxal apex, scale bar 0.5 mm, BB) Maxillary (above) and labial (below) palpi, scale bar = 0.5 mm, CC) Mesotarsal claws, scale bar = 0.5 mm.

Fig. 3. Porrorhynchus marginatus, male. A in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 3. Porrorhynchus marginatus, male. A) Protrochanter, marked area shows protrochanteric setose patch, scale bar = 400 μm, B) Protrochanteric setose patch, scale bar = 50 μm.

Fig. 2 in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 2. Porrorhynchus species, right antenna (anterior view above, posterior view below. A) P. landaisi, B) P. indicans, C) P. marginatus, D) P. depressus. Scale bars = 0.5 mm.

Fig. 1. Porrorhynchus species, dorsal habitus. A in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 1. Porrorhynchus species, dorsal habitus. A) P. marginatus, B) P. landaisi, C) P. indicans, D) P. depressus, E) P. misoolensis. Scale bar = 5 mm.

Fig. 7 in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 7. Porrorhynchus landaisi. Specimen from Hainan Island: Aedeagus in A) Dorsal view, scale bar = 1 mm, B) Ventral view, C) Lateral view, and D) Dorsal habitus, scale bar = 5 mm. Specimen from Vietnam: Aedeagus in E) Dorsal view, scale bar = 1 mm, F) Ventral view, G) Lateral view, and H) Dorsal habitus, scale bar = 5 mm. Specimen from Tibet: Aedeagus in I) Dorsal view, scale bar = 1 mm, J) Ventral view, K) Lateral view, and L) Dorsal habitus, scale bar = 5 mm.

Fig. 10 in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 10. Porrorhynchus marginatus, aedeagi, lateral and dorsal views, showing populational variation. A) Mandalay District, Myanmar, B) Loei Province, Thailand, C) Khammouane Province, Laos, D) Đắk Lắk Province, Vietnam, E) Saraburi Province, Thailand, F) Chumphon Province, Thailand, G) Songkhla Province, Thailand, H) Pahang, Malaysia, I) Gunung Leuser, Sumatra, J) Siberut Island, Sumatra, K) Manna, Sumatra, L) Java, M) Kapit District, Sarawak, Malaysia, N) East Kalimantan, Indonesia. Scale bars = 1 mm.

Fig. 5. Porrorhynchus indicans aedeagus. A in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 5. Porrorhynchus indicans aedeagus. A) Dorsal view, B) Lateral view, C) Ventral view. Scale bar = 1 mm.

Fig. 17. Type specimens. A in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 17. Type specimens. A) Porrorhynchus marginatus, holotype and label, B) Porrorhynchus depressus, holotype, C) Dineutus depressus jamurensis, paratype, D) Porrorhynchus tenuirostris, lectotype and labels, E) Dineutus depressus moszkowskii, holotype, F) Dineutus depressus versteegi, holotype, G) Dineutus marginatus mjobergi, lectotype and labels, H) Dineutus depressus misoolensis, paratype.

Fig. 9. Porrorhynchus marginatus, dorsal habitus showing populational variation. A in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 9. Porrorhynchus marginatus, dorsal habitus showing populational variation. A) Mandalay District, Myanmar, B) Loei Province, Thailand, C) Khammouane Province, Laos, D) Đắk Lắk Province, Vietnam, E) Saraburi Province, Thailand, F) Chumphon Province, Thailand, G) Songkhla Province, Thailand, H) Pahang, Malaysia, I) Gunung Leuser, Sumatra, J) West Sumatra, Sumatra, K) Siberut Island, Sumatra, L) Manna, Sumatra, M) Java, N) Kapit District, Sarawak, Malaysia, O) East Kalimantan, Indonesia. Scale bars = 5 mm.

Fig. 16. Type specimens. A in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 16. Type specimens. A) Porrorhynchus brevirostris, lectotype and labels, B) Dineutes indicans, holotype, C) Porrorhynchus landaisi, lectotype and labels, D) Dineutus landaisi latilimbus, lectotype and labels, E) Porrorhynchus barthelemyi, lectotype (dorsal and ventral views) and labels.

Fig. 14 in Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini)

Fig. 14. Map showing distribution of Porrorhynchus s. str. species. Triangles = P. landaisi; circles = P. marginatus; square = P. indicans.