Predaceous Diving Beetles

Figures 32–35.Habitus and coloration. 32 Exocelina bundiensis sp. n. 33 Exocelina knoepfchen sp. n. 34 Exocelina alexanderi sp. n. 35 Exocelina anggiensis sp. n.

Figures 1–9.Fontidessus species, dorsal habitus. 1 Fontidessus microphthalmus 2 Fontidessus bettae 3 Fontidessus bettae 4–5 Fontidessus toboganensis 4 Suriname specimen 5 Venezuela specimen 6 Fontidessus christineae 7–8 Fontidessus ornatus 7 Suriname specimen 8 Venezuela specimen 9 Fontidessus wheeleri. Scale = 1.0 mm.

Figures 2–3.2 Exocelina waigeoensis sp. n. 3 Exocelina evelyncheesmanae sp. n. A male antenna B protarsomeres 4–5 in ventral view C median lobe in ventral view D median lobe in lateral view E paramere in external view.

Figures 10–23.Fontidessus species. 10–16 prosternal process 10 Fontidessus microphthalmus 11 Fontidessus aquarupe 12 Fontidessus bettae 13 Fontidessus toboganensis 14 Fontidessus christineae 15 Fontidessus ornatus 16 Fontidessus wheeleri 17–23 left metatrochanter and metafemur, anterior aspect 17 Fontidessus microphthalmus 18 Fontidessus bettae 19 Fontidessus toboganensis 20 Fontidessus christineae 21 Fontidessus ornatus. 22, Fontidessus wheeleri.

Figures 28–31.Habitus and coloration. 28 Exocelina waigeoensis sp. n. 29 Exocelina evelyncheesmanae sp. n. 30 Exocelina edeltraudae sp. n. 31 Exocelina hansferyi sp. n.

Figures 24–30.Fontidessus species, aedeagi. 24 Fontidessus microphthalmus; A, median lobe and lateral lobes, dorsal aspect, lateral lobes in gray; B, median lobe, right lateral aspect 25–30 A, median lobe and right lateral lobe, dorsal aspect; B, ventral sclerite of median lobe; C, median lobe, right lateral aspect; D, right lateral lobe, right lateral aspect 25 Fontidessus aquarupe 26 Fontidessus bettae 27 Fontidessus toboganensis 28 Fontidessus christineae 29 Fontidessus ornatus 30 Fontidessus wheeleri.

Figures 16–17.16 Exocelina ekari sp. n. 17 Exocelina weylandensis sp. n. A male antenna B protarsomeres 4–5 in ventral view C median lobe in ventral view D median lobe in lateral view E paramere in external view.

Figures 31–33.Fontidessus species, distributions. Pink area indicates Guiana Shield craton.

Figures 40–43.Habitus and coloration. 40 Exocelina utowaensis sp. n. 41 Exocelina bifida sp. n. 42 Exocelina ekari sp. n. 43 Exocelina weylandensis sp. n.

Figures 34–36.Fontidessus species, habitat. 34 collection site for paratypes of Fontidessus microphthalmus (SR12–0324–01A) 35 collection site for paratypes of Fontidessus christineae (SR12–0324–01C) 36 type locality for Fontidessus bettae (VZ10–0716–03B).

Figures 12–13.12 Exocelina irianensis sp. n. 13 Exocelina wondiwoiensis sp. n. A male antenna B protarsomeres 4–5 in ventral view C median lobe in ventral view D median lobe in lateral view E paramere in external view.

Figures 1–9.Fontidessus species, dorsal habitus. 1 Fontidessus microphthalmus 2 Fontidessus bettae 3 Fontidessus bettae 4–5 Fontidessus toboganensis 4 Suriname specimen 5 Venezuela specimen 6 Fontidessus christineae 7–8 Fontidessus ornatus 7 Suriname specimen 8 Venezuela specimen 9 Fontidessus wheeleri. Scale = 1.0 mm.

Figures 36–39.Habitus and coloration.36 Exocelina arfakensis sp. n. 37 Exocelina polita (Sharp, 1882) 38 Exocelina irianensis sp. n. 39 Exocelina wondiwoiensis sp. n.

Figures 10–23.Fontidessus species. 10–16 prosternal process 10 Fontidessus microphthalmus 11 Fontidessus aquarupe 12 Fontidessus bettae 13 Fontidessus toboganensis 14 Fontidessus christineae 15 Fontidessus ornatus 16 Fontidessus wheeleri 17–23 left metatrochanter and metafemur, anterior aspect 17 Fontidessus microphthalmus 18 Fontidessus bettae 19 Fontidessus toboganensis 20 Fontidessus christineae 21 Fontidessus ornatus. 22, Fontidessus wheeleri.

Figures 12–13.12 Exocelina irianensis sp. n. 13 Exocelina wondiwoiensis sp. n. A male antenna B protarsomeres 4–5 in ventral view C median lobe in ventral view D median lobe in lateral view E paramere in external view.

Figures 24–30.Fontidessus species, aedeagi. 24 Fontidessus microphthalmus; A, median lobe and lateral lobes, dorsal aspect, lateral lobes in gray; B, median lobe, right lateral aspect 25–30 A, median lobe and right lateral lobe, dorsal aspect; B, ventral sclerite of median lobe; C, median lobe, right lateral aspect; D, right lateral lobe, right lateral aspect 25 Fontidessus aquarupe 26 Fontidessus bettae 27 Fontidessus toboganensis 28 Fontidessus christineae 29 Fontidessus ornatus 30 Fontidessus wheeleri.

Figures 36–39.Habitus and coloration.36 Exocelina arfakensis sp. n. 37 Exocelina polita (Sharp, 1882) 38 Exocelina irianensis sp. n. 39 Exocelina wondiwoiensis sp. n.

Figures 31–33.Fontidessus species, distributions. Pink area indicates Guiana Shield craton.

Figure 15.Exocelina bifida sp. n. A male antenna B protarsomeres 4–5 in ventral view C median lobe in ventral view D median lobe in lateral view E paramere in external view.

Figures 1–9.Fontidessus species, dorsal habitus. 1 Fontidessus microphthalmus 2 Fontidessus bettae 3 Fontidessus bettae 4–5 Fontidessus toboganensis 4 Suriname specimen 5 Venezuela specimen 6 Fontidessus christineae 7–8 Fontidessus ornatus 7 Suriname specimen 8 Venezuela specimen 9 Fontidessus wheeleri. Scale = 1.0 mm.

Figures 40–43.Habitus and coloration. 40 Exocelina utowaensis sp. n. 41 Exocelina bifida sp. n. 42 Exocelina ekari sp. n. 43 Exocelina weylandensis sp. n.

Figures 10–23.Fontidessus species. 10–16 prosternal process 10 Fontidessus microphthalmus 11 Fontidessus aquarupe 12 Fontidessus bettae 13 Fontidessus toboganensis 14 Fontidessus christineae 15 Fontidessus ornatus 16 Fontidessus wheeleri 17–23 left metatrochanter and metafemur, anterior aspect 17 Fontidessus microphthalmus 18 Fontidessus bettae 19 Fontidessus toboganensis 20 Fontidessus christineae 21 Fontidessus ornatus. 22, Fontidessus wheeleri.

Figures 20–21.20 Exocelina eme sp. n. 21 Exocelina brahminensis sp. n. A male antenna B protarsomeres 4–5 in ventral view C median lobe in ventral view D median lobe in lateral view E paramere in external view.

Figures 24–30.Fontidessus species, aedeagi. 24 Fontidessus microphthalmus; A, median lobe and lateral lobes, dorsal aspect, lateral lobes in gray; B, median lobe, right lateral aspect 25–30 A, median lobe and right lateral lobe, dorsal aspect; B, ventral sclerite of median lobe; C, median lobe, right lateral aspect; D, right lateral lobe, right lateral aspect 25 Fontidessus aquarupe 26 Fontidessus bettae 27 Fontidessus toboganensis 28 Fontidessus christineae 29 Fontidessus ornatus 30 Fontidessus wheeleri.