Porrorhynchus (Rhomborhynchus) depressus Régimbart, 1892

Gustafson, Grey T. & Miller, Kelly B., 1835, Revision of the Southeast Asian Whirligig Beetle GenusPorrorhynchusLaporte, 1835 (Coleoptera: Gyrinidae: Gyrininae: Dineutini), The Coleopterists Bulletin 1835 (4), pp. 675-714 : 675-714

Porrorhynchus (Rhomborhynchus) depressus Régimbart, 1892

( Figs. 1D , 2D , 11A–L , 12A–L , 13D , 15 , 17B, C, E–F )

Figures

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. 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. 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. 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. 13. Porrorhynchus species, female reproductive tract. A) P. landaisi, B) P. indicans, C) P. marginatus, D) P. depressus, E) P. misoolensis. More heavily sclerotized areas indicated in gray. Scale bars = 1 mm.

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

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.