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FIGURE 9 in Redescription of Hybusa occidentalis (Westwood) (Orthoptera: Proscopiidae: Hybusinae): new images, description of male genitalia, pictorial key of Hybusa species and morphological comparison of Hybusinae with Xeniinae and Proscopiinae

FIGURE 9. Identification key for females of Hybusa. H. armaticollis and H. coniceps (Holotype) Photo: MNHN—Simon Poulain—2013 and H. occidentalis © The Trustees of the Natural History Museum.

FIGURE 8 in Redescription of Hybusa occidentalis (Westwood) (Orthoptera: Proscopiidae: Hybusinae): new images, description of male genitalia, pictorial key of Hybusa species and morphological comparison of Hybusinae with Xeniinae and Proscopiinae

FIGURE 8. Identification key for males of Hybusa. H. armaticollis (Holotype) Photo: MNHN—Simon Poulain—2013 and H. minuta (Holotype) ©Departamento de Entomologia, MNRJ.

FIGURE 7 in Redescription of Hybusa occidentalis (Westwood) (Orthoptera: Proscopiidae: Hybusinae): new images, description of male genitalia, pictorial key of Hybusa species and morphological comparison of Hybusinae with Xeniinae and Proscopiinae

FIGURE 7. Hybusa occidentalis ♀, habitus. A) dorsal view; B) lateral view. © The Trustees of the Natural History Museum.

FIGURE 5 in Redescription of Hybusa occidentalis (Westwood) (Orthoptera: Proscopiidae: Hybusinae): new images, description of male genitalia, pictorial key of Hybusa species and morphological comparison of Hybusinae with Xeniinae and Proscopiinae

FIGURE 5. Male genitalia of Hybusa occidentalis. A) dorsal view; B) idem; C) lateral view; D) idem. A black background was used to highlight membranous portions while a white background aimed to highlight sclerites.

FIGURE 6 in Redescription of Hybusa occidentalis (Westwood) (Orthoptera: Proscopiidae: Hybusinae): new images, description of male genitalia, pictorial key of Hybusa species and morphological comparison of Hybusinae with Xeniinae and Proscopiinae

FIGURE 6. Male genitalia of Hybusa occidentalis. A) dorsal view highlighting the fused lophi; B) latero-ventral view highlighting the endophallus; C–D) ventral view. A black background was used to highlight membranous portions while a white background aimed to highlight sclerites.

FIGURE 3 in Redescription of Hybusa occidentalis (Westwood) (Orthoptera: Proscopiidae: Hybusinae): new images, description of male genitalia, pictorial key of Hybusa species and morphological comparison of Hybusinae with Xeniinae and Proscopiinae

FIGURE 3. Hybusa occidentalis ♂. A) head and prothorax, lateral view; B) meso- and metathorax, lateral view; C) tibia and arolium, lateral view.

FIGURE 1 in Redescription of Hybusa occidentalis (Westwood) (Orthoptera: Proscopiidae: Hybusinae): new images, description of male genitalia, pictorial key of Hybusa species and morphological comparison of Hybusinae with Xeniinae and Proscopiinae

FIGURE 1. Male genitalia of Hybusa occidentalis from Jago (1989), the only known Hybusa male genitalia. A) lateral view; B) dorsal view.

FIGURE 26 in Morphology of the larvae of Rhantaticus congestus (Klug, 1833) and phylogenetic comparison with other known Aciliini (Coleoptera: Dytiscidae: Dytiscinae)

FIGURE 26. One of the most parsimonious trees obtained from the cladistic analysis, with character state changes mapped for each clade. Numbers in bold underlined indicate unique character state transformations.

FIGURE 24 in Morphology of the larvae of Rhantaticus congestus (Klug, 1833) and phylogenetic comparison with other known Aciliini (Coleoptera: Dytiscidae: Dytiscinae)

FIGURE 24. Habitat of Rhantaticus congestus (Klug, 1833), temporary pool near Nanarena village, Plateau de l'Horombe.

FIGURE 25 in Morphology of the larvae of Rhantaticus congestus (Klug, 1833) and phylogenetic comparison with other known Aciliini (Coleoptera: Dytiscidae: Dytiscinae)

FIGURE 25. Strict consensus cladogram obtained from the cladistic analysis of 94 morphological characters scored for nine terminal taxa of Aciliini and three outgroups, with Bremer support values indicated above branches and Bootstrap support values higher than 50 indicated below branches.

FIGURES 21-23 in Morphology of the larvae of Rhantaticus congestus (Klug, 1833) and phylogenetic comparison with other known Aciliini (Coleoptera: Dytiscidae: Dytiscinae)

FIGURES 21-23. Rhantaticus congestus (Klug, 1833): 21. instar II, lateral aspect; 22. instar II, dorsal aspect; 23. instar III, lateral aspect. Scale bar = 5 mm.

FIGURES 15-20 in Morphology of the larvae of Rhantaticus congestus (Klug, 1833) and phylogenetic comparison with other known Aciliini (Coleoptera: Dytiscidae: Dytiscinae)

FIGURES 15-20. Rhantaticus congestus (Klug, 1833), instar III: 15. head, dorsal aspect; 16. head ventral aspect; 17. antenna, dorsal aspect; 18. maxilla, dorsal aspect; 19. mesocoxa and mesotrochanter, anterior surface; 20. mesocoxa and mesotrochanter, posterior surface. A, antennomere; MP, maxillary palpomere. Scale bars = 0.5 mm (Figs 15–16); 0.2 mm (Figs 17–20).

FIGURES 11–14 in Morphology of the larvae of Rhantaticus congestus (Klug, 1833) and phylogenetic comparison with other known Aciliini (Coleoptera: Dytiscidae: Dytiscinae)

FIGURES 11–14. Rhantaticus congestus (Klug, 1833), instar II: 11. mesothoracic leg, anterior surface; 12. mesothoracic leg, posterior surface. 13. abdominal segment VIII, dorsal aspect; 14 urogomphus, dorsal aspect. AB, abdominal segment VIII; CO, coxa; FE, femur; TA, tarsus; TI, tibia; TR, trochanter; UR, urogomphus. Numbers and lowercase letters refer to primary setae and pores, respectively. Scale bars = 0.2 mm (Figs 11–13); 0.1 mm (Fig. 14).

FIGURES 1–10 in Morphology of the larvae of Rhantaticus congestus (Klug, 1833) and phylogenetic comparison with other known Aciliini (Coleoptera: Dytiscidae: Dytiscinae)

FIGURES 1–10. Rhantaticus congestus (Klug, 1833), instar II: 1. head capsule, dorsal aspect; 2. head capsule, ventral aspect; 3. antenna, dorsal aspect; 4. antenna, ventral aspect; 5. mandible, dorsal aspect; 6. mandible, ventral aspect; 7. maxilla, dorsal aspect; 8. maxilla, ventral aspect; 9. labium, dorsal aspect; 10. Labium, ventral aspect. AN, antenna, FR, frontoclypeus; gAN, antennal group; gMX, maxillary group; LA, labium; LC, lamellae clypeales; MN, mandible; MX, maxilla; PA, parietal; TP, tentorial pits; sp, spinula. Numbers and lowercase letters refer to primary setae and pores, respectively. Scale bars = 0.5 mm (Figs 1–2); 0.1 mm (Figs 3–10).

FIGURE 5 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)

FIGURE 5. Chydorus tilhoi Rey & Saint-Jeans, 1969 from the Congo River Basin, Africa, parthenogenetic female. A, limb V; B, idem, outline showing variation on the exopodite shape; C-D, postabdomen. Scale bars = 0.05 mm.

FIGURE 4 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)

FIGURE 4. Chydorus tilhoi Rey & Saint-Jeans, 1969 from the Congo River Basin, Africa, parthenogenetic female. A, limb I; B, idem, arrows showing stiff setae; C, idem, ODL and IDL; D, Limb II; E, limb III; F, idem, basal endite; G, limb IV; H, idem, basal endite and gnathobasic filter plate. Scale bars = 0.05 mm.

FIGURE 3 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)

FIGURE 3. Chydorus tilhoi Rey & Saint-Jeans, 1969 from the Congo River Basin, Africa, parthenogenetic female. A, habitus; B, dorsal view; C, ventral margin of carapace, anterior portion; D, ventral margin of carapace, posterior portion with denticles; E, head shield; F, idem, rostrum; G, head pores; H, labral keel; I, idem, frontal view; J, antenna I; K, antenna II. The authors thank to Dr. Alexey A. Kotov and an anonymous reviewer for the valuable suggestions and criticism. Scale bars = 0.05 mm.

FIGURE 6 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)

FIGURE 6. Chydorus tilhoi Rey & Saint-Jeans, 1969 from the Congo River Basin, Africa, parthenogenetic female. A-B, habitus; C, rostrum; D, rostrum and antennule; E, denticle on the labral keel; F, arrow showing the position of major head pore; G, major head pore with a thick rim; H, ventral margin of carapace, anterior portion; I, ventral margin of carapace, median and posterior portions; J, denticle on the posteroventral margin of carapace.

FIGURE 2 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)

FIGURE 2. Chydorus sphaericus (O.F. Müller, 1776) from the Bjørndalsvatn Lake Sveindal-Hornnes, Norway, parthenogenetic female. A, limb I; B, idem, anterior seta 1; C, idem, arrow showing stiff setae; D, idem, ODL and IDL. E, limb II; F, limb III; G, idem, basal endite; H, limb IV; I, idem, distal and basal endites; J, limb V; K, idem, inner lobe. Scale bars = 0.05 mm.

FIGURE 1 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)

FIGURE 1. Chydorus sphaericus (O.F. Müller, 1776) from Bjørndalsvatn Lake Sveindal-Hornnes, Norway, parthenogenetic female. A, habitus; B, dorsal view; C, ventral view; D, ventral margin of carapace, anterior portion; E, ventral margin of carapace, posterior portion; F, head pores; G, labral keel; H, idem, frontal view; I, antenna I; J, antenna II; K, idem, distal segment of endopodite; L, idem, distal segment of exopodite; M, postabdomen. Scale bars = 0.1 mm.