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FIGURE 5 in Revision of the Scirtes flavoguttatus species-group (Coleoptera: Scirtidae: Scirtinae) 2467

FIGURE 5. Scirtes flavoguttatus Champion, holotype, male. A) sternites I–VII, B) tergite VIII, C) tergite IX, D) sternite IX, E) tegmen and penis in ventral aspect, F) ditto in dorsal aspect, G) ditto in lateral aspect. Abbreviations: p, penis; t, tegmen.

FIGURE 11 in Revision of the Scirtes flavoguttatus species-group (Coleoptera: Scirtidae: Scirtinae) 2467

FIGURE 11. Scirtes schawalleri sp. n., holotype, male. A) sternites I–VII, B) tergite VIII, C) tergite IX, D) sternite IX, E) tegmen and penis in dorsal aspect, F) ditto in ventral aspect, G) ditto in lateral aspect. Abbreviations: p, penis; t, tegmen.

FIGURE 12 in Revision of the Scirtes flavoguttatus species-group (Coleoptera: Scirtidae: Scirtinae) 2467

FIGURE 12. Scirtes schawalleroides sp. n., holotype, male. A) sternites V–VII, B) tergite VIII, C) tergite IX, D) sternite IX, E) tegmen and penis in ventral aspect.

FIGURE 10 in Revision of the Scirtes flavoguttatus species-group (Coleoptera: Scirtidae: Scirtinae) 2467

FIGURE 10. Scirtes maxi sp. n., holotype, male. A) sternites V–VII, B) tergite VIII, C) tergite IX, D) sternite IX, E) tegmen and penis in ventral aspect.

FIGURE 16 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 16. Calvariomorphus gen. nov. and similar genera, details of head and ventral structures. A) Calvarium hashimotorum (Yoshitomi), ventral view, B) Calvarium (Calvariellum) hamifer Zwick, ventral view, C) Calvariomorphus sakaii sp. nov., ventral view, D) Calvariopsis bituberculata Ruta, ventral view E) Calvarium hashimotorum, ventral portion of head, close-up, F) Calvariopsis yanayacuense Ruta, ventral portion of head, close-up, buttonhole marked with arrow. Abbreviations: gcs—globose cuticular structures, mp—mesoventral process, pp—prosternal process, sar—supraantennal ridge, sgr—subgenal ridge, soc—subocular carina, sor—subocular ridge.

FIGURE 13 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 13. Calvariomorphus sakaii sp. nov., male genitalia. A) penis, B) tegmen, C) sternite IX and tergite IX, D) tergite VIII. Scale bar = 0.25 mm.

FIGURE 12 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 12. Calvariomorphus peterseni (Klausnitzer), comb. nov., holotype, male genitalia. A) penis, B) tegmen, C) sternite IX, D) tergite IX. Scale bar = 0.25 mm.

FIGURE 11 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 11. Calvariomorphus palauensis sp. nov., female genitalia. A) genital tract, B) bursella and bursal sclerite, C) sclerites of accessory gland. Abbreviations: bscl—bursal sclerite, bsl—bursella, gla—accessory gland. Scale bar = 0.5 mm.

FIGURE 10 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 10. Calvariomorphus palauensis sp. nov., male genitalia. A) penis, B) tegmen, C) sternite IX, D) tergite VIII, E) tergite IX. Scale bar = 0.25 mm.

FIGURE 14 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 14. Calvariomorphus sakaii sp. nov., female genitalia. A) genital tract, B) coxites, C) bursal sclerite. Scale bar = 0.5 mm (A, C), 0.25 mm (B).

FIGURE 9 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 9. Calvariomorphus malayanus sp. nov., female genitalia. A) genital tract, B) coxites, C) bursal sclerite. Scale bar (A) = 0.5 mm.

FIGURE 7. Calvariomorphus gen. nov., abdomen. A in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 7. Calvariomorphus gen. nov., abdomen. A) C. malayanus sp. nov., male, B) C. sakaii sp. nov., female, C) same, close-up of ventrite 4.

FIGURE 8 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 8. Calvariomorphus malayanus sp. nov., male genitalia, specimen from Kuala Lumpur (A–D) and Singapore (E). A) penis, B) tegmen, C) tergite VIII, D) tergite IX and sternite IX, E) terminal sclerites and aedeagus. Scale bars = 0.25 mm.

FIGURE 5 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 5. Calvariomorphus gen. nov., dorsal (A) and ventral (B–G) view. A) C. malayanus sp. nov., dorsal view, B) same, ventral view, C) C. sakaii sp. nov., D) same, close-up of head and mesoventrite, E) C. malayanus sp. nov., close-up of mesoventrite, F) C. palauensis sp. nov., meso- and metaventrite, G) C. sakaii sp. nov., meso- and metaventrite.

FIGURE 6 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 6. Calvariomorphus peterseni (Klausnitzer), comb. nov., holotype, ventral view. A) head, ventral view, B) same, head and ventral portion of thorax, ventral view.

FIGURE 4. Calvariomorphus gen. nov., excitators. A in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 4. Calvariomorphus gen. nov., excitators. A) C. malayanus sp. nov., apex of elytron, areas with micropores marked with arrows, B) same, close-up, C) C. palauensis sp. nov., apices of elytra, caudal view, D) same, close-up, E) C. sp. (Nicobar Islands), apices of elytra, semilateral view, F) same, caudal view, G) same, close-up.

FIGURE 3 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 3. Calvariomorphus malayanus sp. nov., hind wing. Abbreviations: AA—anterior anal vein, AP—posterior anal vein, CuA—anterior cubital vein, CuA+AA1+2—fusion of anterior cubital and anterior anal veins, MP—posterior medial vein, r3— third radial cross-vein, RA—anterior radial vein, rp-mp2—second radio-medial cross-vein, ScP—posterior subcostal vein.

FIGURE 2 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 2. Calvariomorphus gen. nov., morphology of head. A) C. palauensis sp. nov., head, ventral view, B), same, close-up of mouthparts, C) C. malayanus sp. nov., mandible, D) same, maxilla, E) same, labrum.

FIGURE 1 in Calvariomorphus-a new genus of marsh beetles (Coleoptera: Scirtidae) with remarkable elytral excitators

FIGURE 1. Calvariomorphus gen. nov., dorsal view (with the exception of H). A) C. malayanus sp. nov., male, B) same, female, C) C. palauensis sp. nov., male, D) same, female, E) C. sakaii sp. nov., male, F) same, female, G) C. sp. (Nicobar Islands), H) same, semilateral view. Scale bars = 0.5 mm.