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Figs 51 in Taxonomy and biology of the bromeliad-inhabiting genus Lachnodacnum (Coleoptera: Hydrophilidae: Sphaeridiinae)

Figs 51í53. Head capsule of the ¿rst instar larva of Lachnodacnum luederwaldti Orchymont, 1937. 51 – ventral view; 52 – dorsal view; 53 – detail of anterior margin of head capsule, dorsal view.

Figs 33 in Taxonomy and biology of the bromeliad-inhabiting genus Lachnodacnum (Coleoptera: Hydrophilidae: Sphaeridiinae)

Figs 33í36. Mesoventral elevation of Lachnodacnum Orchymont, 1937, SEM micrographs. In ventral (33í34) and lateral (35í36) views. 33, 35 – L. luederwaldti Orchymont, 1937; 34, 36 – L. saundersi Orchymont, 1937 (arrow indicates the anepisternal suture).

Figs 40 in Taxonomy and biology of the bromeliad-inhabiting genus Lachnodacnum (Coleoptera: Hydrophilidae: Sphaeridiinae)

Figs 40í45. First instar larva of Lachnodacnum luederwaldti Orchymont, 1937, SEM micrographs. 40 – whole larva in lateral view; 41 – thorax in lateral view; 42 – abdominal segments 7í10 (including abdominal tergite 8 and spiracular atrium) in dorsolateral view; 43 – head in dorsal view; 44 – labium and maxilla in ventral view; 45 – detail of the base of mandible, with basal inner cuticular spines.

Figs 65 in Taxonomy and biology of the bromeliad-inhabiting genus Lachnodacnum (Coleoptera: Hydrophilidae: Sphaeridiinae)

Figs 65í71. Mouthparts of the third instar larva of Lachnodacnum luederwaldti Orchymont, 1937. 65í66 – antenna (65 – dorsal view; 66 – ventral view); 67í68 – maxilla (67 – ventral view, 68 – dorsal view); 69í70 – labium (69 – ventral view, 70 – dorsal view); 71 – right mandible, dorsal view.

Figs 72 in Taxonomy and biology of the bromeliad-inhabiting genus Lachnodacnum (Coleoptera: Hydrophilidae: Sphaeridiinae)

Figs 72í74. Pupa of Lachnodacnum luederwaldti Orchymont, 1937. 72 – dorsal view; 73 – ventral view; 74 – detail of pronotal stylus. Abbreviations: Ms – stylus of pronotal margin; Ds – stylus of pronotal disc; Ab – abdominal segment.

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Figs. 9–16 in Taxonomic revision of the New World species of the genus Oosternum Sharp (Coleoptera: Hydrophilidae: Sphaeridiinae) II. The Oosternum convexum species group

Figs. 9–16. Diagnostic characters of the Oosternum convexum species group. 9 – prosternum; 10 – elytral apex (arrow: elytral interval 2); 11 – detail of basal portion of epipleuron (note marginal denticulation); 12 – ventral surface of mesotibia (female); 13 – ditto male (arrow: multiplied spines in inner row); 14 – detail of elytral surface (arrows: small denticles at each serial puncture); 15 – terminal abdominal sclerites of male (st8: sternite 8; st9: sternite 9; ter8: tergite 8); 16 – head in lateral view. 9, 11, 14 – O. convexum sp. nov.; 10, 12 – O. simplex sp. nov.; 13, 15, 16 – O. intermedium sp. nov.

Fig. 9 in Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)

Fig. 9. Third instar larva of Laccobius kunashiricus Shatrovskiy, 1984, anterior margin of head capsule, dorsal (A) and ventral (B) (both drawn from dorsal).

Fig. 8 in Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)

Fig. 8. Third instar larva of Laccobius kunashiricus Shatrovskiy, 1984, head capsule, dorsal (A) and ventral (B) view.

Fig. 4 in Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)

Fig. 4. First instar larva of Laccobius kunashiricus Shatrovskiy, 1984, anterior margin of head capsule, dorsal (A) and ventral (B) view (both views drawn from a slide with the head capsule mounted with dorsal side up).

Fig. 2. Laccobius kunashiricus Shatrovskiy, 1984.A in Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)

Fig. 2. Laccobius kunashiricus Shatrovskiy, 1984.A – third instar larva; B – feeding behaviour of larva; C–D – pupa in pupal chamber.

Fig. 5 in Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)

Fig. 5. First instar larva of Laccobius kunashiricus Shatrovskiy, 1984, head appendages. A–B – antenna, dorsal (A) and ventral (B) view; C–D – mandible, dorsal view; E–F – maxilla, dorsal (E) and ventral (F) view; G–H – labium, dorsal (G) and ventral (H) view. Asterisk (*) in the scale bar means same scale.

Fig. 12 in Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)

Fig. 12. Pupa of Laccobius kunashiricus Shatrovskiy, 1984. A–C – whole pupa, dorsal (A), lateral (B), and ventral (C) view; D–E – detail of position of styli on pronotum (styli removed), dorsal (D) and lateral (E) view; F – detail of abdominal apex, lateral view.

Fig. 3 in Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)

Fig. 3. First instar larva of Laccobius kunashiricus Shatrovskiy, 1984, head capsule, dorsal (A) and ventral (B) view.

Fig. 11 in Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)

Fig. 11. Mesothoracic leg of Laccobius kunashiricus Shatrovskiy, 1984. First (A) and third (B) instar larva, anterior view.

Fig. 2. Cercyon divisus Hebauer, 2002. A–C in A review of the Asian species of the Cercyon unipunctatus group (Coleoptera: Hydrophilidae: Sphaeridiinae)

Fig. 2. Cercyon divisus Hebauer, 2002. A–C – genitalia of specimen from Nepal: Taplejung Distr. (NMPC) (A – tergmen; B – median lobe; C – sternite 9). D–H – variability in the shape of male sternite 9 (D – China: Yunnan: Habashan; E – Nepal: Karnali Prov.; F – China: Yunnan: Maoniuping; G – China: Yunnan: Yulongshan; H – China: Sichuan: Moxi). I–P – ventral morphology (I–L – specimen from India: West Bengal: Darjeeling; M–P – specimen from China: Yunnan: Maoniuping): I, M – meso- and metaventrite; J, N – detail of mesoventral plate; K, O – mentum; L, P – prosternum and antennal groove.

Fig. 5 in A review of the Asian species of the Cercyon unipunctatus group (Coleoptera: Hydrophilidae: Sphaeridiinae)

Fig. 5. Cercyon kubani sp. nov. A–B dorsal and lateral habitus of paratypes from China: Yunnan: Weibaoshan; C–E – male genitalia of the holotype (C – tegmen; D – median lobe; E – sternite 9). F–I – ventral morphology (F – meso- and metaventrite; G – detail of mesoventral plate; H – prosternum and antennal groove; I – mentum).

Fig. 1 in A review of the Asian species of the Cercyon unipunctatus group (Coleoptera: Hydrophilidae: Sphaeridiinae)

Fig. 1. Dorsal and lateral habitus of Cercyon divisus Hebauer, 2002. A, C–D – specimens from China: Yunnan, Yulongshan; B – specimen from Nepal: Taplejung Distr., upper Simbua Khola near Tseram.

Fig. 10 in Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)

Fig. 10. Third instar larva of Laccobius kunashiricus Shatrovskiy, 1984, head appendages.A–B – antenna, dorsal (A) and ventral (B) view; C–D – mandible, dorsal view; E–F – maxilla, dorsal (E) and ventral (F) view; G–H – labium, dorsal (G) and ventral (H) view.

Fig. 6 in Description of immature stages of Laccobius kunashiricus, with a key to genera of the Laccobiini based on larval characters (Coleoptera: Hydrophilidae)

Fig. 6. Second instar larva of Laccobius kunashiricus Shatrovskiy, 1984, head appendages. A–B – antenna, dorsal (A) and ventral (B) view; C–D – maxilla, dorsal (C) and ventral (D) view.

Fig. 14 in A review of the Asian species of the Cercyon unipunctatus group (Coleoptera: Hydrophilidae: Sphaeridiinae)

Fig. 14. East Palaearctic and Oriental Cercyon species which may be confused with members of C. unipunctatus group (dorsal and lateral view of pronotum and elytra, thorax and legs omitted). A – C. lateralis (Marsham, 1802); B – C. ustus Sharp, 1874 (paralectotype from Nagasaki); C – C. ovillus Motschulsky, 1860; D – C. sericatus Hebauer, 2002 (paratype from Nepal: Gopte near Tharepati); E – C. alinae Ryndevich, 2004; F – C. berlovi Shatrovskiy, 1999; G – C. hanseni Jia, Fikáček & Ryndevich, 2011.