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FIGURES 24–32 in Description of three new species of Crenitis Bedel from China, with additional faunistic records for the genus (Coleoptera: Hydrophilidae: Chaetarthriinae)

FIGURES 24–32. Crenitis apicalis (Reitter). 24–26: Habitus (24: dorsal view, 25: ventral view, 26: lateral view); 27: head and pronotum, lateral view; 28: head and pronotum, dorsal view; 29: head, ventral view; 30: head and prosternum, ventral view; 31: meso- and metaventrite, ventral view; 32: abdomen, ventral view.

FIGURES 18–23 in Description of three new species of Crenitis Bedel from China, with additional faunistic records for the genus (Coleoptera: Hydrophilidae: Chaetarthriinae)

FIGURES 18–23. Crenitis obovata sp. nov. 18–21: Habitus (18: dorsal view, 19: ventral view, 20: lateral view, 21: anterior view); 22: mesoventrite, ventral view; 23: aedeagus, dorsal view. 18–20, 22–23: Holotype.

FIGURES 10–17 in Description of three new species of Crenitis Bedel from China, with additional faunistic records for the genus (Coleoptera: Hydrophilidae: Chaetarthriinae)

FIGURES 10–17. Crenitis lianggeqiui sp. nov. 10–12: Habitus (10: dorsal view, 11: ventral view, 12: lateral view); 13: head and pronotum, dorsal view; 14: head and prosternum, ventral view; 15: meso- and metaventrite, ventral view; 16: abdomen, ventral view; 17: pronotum, lateral view.

FIGURES 1–9 in Description of three new species of Crenitis Bedel from China, with additional faunistic records for the genus (Coleoptera: Hydrophilidae: Chaetarthriinae)

FIGURES 1–9. Crenitis aduncata sp. nov. 1–3: Habitus (1: dorsal view, 2: ventral view, 3: lateral view); 4: head, dorsal view; 5: pronotum, dorsal view; 6: pronotum, lateral view; 7: head and prosternum, ventral view; 8: abdomen, ventral view; 9: meso- and metaventrite, ventral view.

FIGURES 56 – 62. SEM photographs. 56 – 59 in Description of three new species of Crenitis Bedel from China, with additional faunistic records for the genus (Coleoptera: Hydrophilidae: Chaetarthriinae)

FIGURES 56 – 62. SEM photographs. 56 – 59: Crenitis aduncata sp. nov., ventral view (56: labrum and mentum, 57: metaventrite, 58: maxillary palpus, 59: metafemur); 60 – 62. C. lianggeqiui sp. nov., ventral view (60: metafemur, 61: mentum, 62: antenna and maxillary palpus).

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FIGURES 1–3 in New synonyms, combinations and faunistic records in the genus Denierella Kaszab (Coleoptera: Meloidae)

FIGURES 1–3. Habitus of Denierella. 1—D. emmerichi (Pic, 1934), lectotype (19 mm); 2—D. promerotricha (Dvořák, 1996), holotype (24 mm); 3—D. thailandica (Dvořák, 1996), holotype (16 mm).

FIGURES 56–62. SEM photographs. 56–59 in Description of three new species of Crenitis Bedel from China, with additional faunistic records for the genus (Coleoptera: Hydrophilidae: Chaetarthriinae)

FIGURES 56–62. SEM photographs. 56–59: Crenitis aduncata sp. nov., ventral view (56: labrum and mentum, 57: metaventrite, 58: maxillary palpus, 59: metafemur); 60–62. C. lianggeqiui sp. nov., ventral view (60: metafemur, 61: mentum, 62: antenna and maxillary palpus).

FIGURES 1–14 in Two new species of Coelostoma Brullé, 1835 from China and additional faunistic records of the genus from the Oriental Region (Coleoptera: Hydrophilidae: Sphaeridiinae: Coelostomatini)

FIGURES 1–14. Aedeagus of Coelostoma species. 1–4: C. tangliangi sp. nov., paratype; 5–8: C. horni from southern Yunnan: Xishuangbanna; 9: C. huangi from Vietnam: 6 km NE Lam Khan; 10: C. diversum, paratype from Sumatra: Panjinggahan; 11: C. jaechi sp. nov., paratype; 12–14: C. subditum (12–13: from Yunnan: Xishuangbanna; 14: from Hongkong). All figures except Fig. 13 to the same scale.

FIGURES 17–19 in Vietelmis jablonskii, a new species of riffle beetle from Laos and Thailand and new faunistic records on Vietelmis Delève, 1968 from Malaysia (Coleoptera: Elmidae)

FIGURES 17–19. Uietelmis jablonskii sp. nov., holotype: 17) aedeagus, ventral view; 18) ♂ sternite VIII; 19) ♂ pregenital segments. Scale bars 0.1 mm.

FIGURES 1–6 in Vietelmis jablonskii, a new species of riffle beetle from Laos and Thailand and new faunistic records on Vietelmis Delève, 1968 from Malaysia (Coleoptera: Elmidae)

FIGURES 1–6. Localities of Uietelmis species: 1) the type locality of Uietelmis jablonskii sp.nov.: tributary of the Nam Song river near Nassom village, Luang Prabang Province, Laos; 2) the second locality of U. jablonskii: Yakruae Creek in the Nam Nao National Park, Phetchabun Province, Thailand; 3) habitat of U. kovaci: the Endau River in Endau-Rompin Park, Johor, Malaysia; 4) the type locality of U. lantiri, U. dentipes and U. ketua: the Sabalangang River, tributary of the Sapulut River, Sabah, Malaysia; 5) a rather atypical habitat of U. ketua and U. dentipes: a rivulet near Batu Punggul Resort in dense primary forest, Sabah, Malaysia; 6) an another habitat of U. ketua: a shaded stream in primary forest, tributary of the Kuamut River near Kampung Pisang Pisang, Sabah, Malaysia.

FIGURES 15–16 in Vietelmis jablonskii, a new species of riffle beetle from Laos and Thailand and new faunistic records on Vietelmis Delève, 1968 from Malaysia (Coleoptera: Elmidae)

FIGURES 15–16. Habitus of: 15) Uietelmis lantiri, paratype ♂, BL: 1.54 mm; 16) U. ketua, paratype ♂, BL: 1.47 mm.

FIGURES 11–14 in Vietelmis jablonskii, a new species of riffle beetle from Laos and Thailand and new faunistic records on Vietelmis Delève, 1968 from Malaysia (Coleoptera: Elmidae)

FIGURES 11–14. Head and pronotum of: 11) Uietelmis jablonskii sp. nov., holotype ♂; 12) U. kovaci, ♂; 13) U. dentipes, paratype ♂; 14) Uietelmis lantiri, paratype ♂.

FIGURES 7–10 in Vietelmis jablonskii, a new species of riffle beetle from Laos and Thailand and new faunistic records on Vietelmis Delève, 1968 from Malaysia (Coleoptera: Elmidae)

FIGURES 7–10. Habitus of: 7) Uietelmis jablonskii sp. nov., holotype ♂, BL: 1.76 mm; 8) U. brevicornis, ♂, BL: 1.80 mm; 9) U. kovaci, ♂, BL: 1.74 mm; 10) U. dentipes, paratype ♂, BL: 1.64 mm.

FIGURE 8 in Two new species of Diamesinae (Diptera: Chironomidae) from the Central Iranian Range and Elburz Mountains (Iran), with new faunistic records for the subfamily

FIGURE 8. Potthastia longimanus (Kieffer, 1922) adult male (A–B), Lake Huron, Bush Bay, MI, USA. A. hypopygium, arrows indicate phallapodeme. B. hypopygium, aedeagal lobe (AL), superior volsella (SVo), median volsella (MVo), and inferior volsella (IVo), white arrows indicate the boundary of aedeagal lobe and superior volsella. Scale bars are 50 µm.

FIGURE 9 in Two new species of Diamesinae (Diptera: Chironomidae) from the Central Iranian Range and Elburz Mountains (Iran), with new faunistic records for the subfamily

FIGURE 9. Bayesian Interface (BI) and Neighbor-Joining (NJ) trees of Sympotthastia Pagast, 1947 species, and one outgroup Lappodiamesa omelkoi Makarchenko et Makarchenko, 2013 inferred from the COI nucleotide sequence data (658 bp). Numbers on branches represent the posterior probabilities for BI and bootstrap value for NJ, respectively (values <0.95/95 omitted). The gray bars on the right are clusters estimated using three molecular species delimitation methods: ABGD, ASAP, and K2P.

FIGURE 4 in Two new species of Diamesinae (Diptera: Chironomidae) from the Central Iranian Range and Elburz Mountains (Iran), with new faunistic records for the subfamily

FIGURE 4. Diamesa kasymovi Kownacka et Kownacki, 1973 adult female (A-E). A. head. B. thorax. C. wing. D. genitalia, ventral. E. genitalia, dorsal. Scale bars are 100 µm.

FIGURE 6 in Two new species of Diamesinae (Diptera: Chironomidae) from the Central Iranian Range and Elburz Mountains (Iran), with new faunistic records for the subfamily

FIGURE 6. Sympotthastia golalae sp. nov. adult male. A. wing. B. hypopygium, aedeagal lobe, superior volsella, median volsella and phallapodeme indicated by arrows. C. superior volsella and spiniferous median volsella. Scale bars are 100 µm.

FIGURE 3 in Two new species of Diamesinae (Diptera: Chironomidae) from the Central Iranian Range and Elburz Mountains (Iran), with new faunistic records for the subfamily

FIGURE 3. Diamesa kasymovi Kownacka et Kownacki, 1973 adult male. A. antenna. B. hypopygium. C. hypopygium. Scale bars are 50 µm.

FIGURE 2 in Two new species of Diamesinae (Diptera: Chironomidae) from the Central Iranian Range and Elburz Mountains (Iran), with new faunistic records for the subfamily

FIGURE 2. Diamesa sahandensis sp. nov. adult male. A. antenna. B. head. C. thorax. D. wing. E. hypopygium, dorsal. F. hypopygium, ventral. G. superior volsella. H. gonostylus. I. gonostylus. Scale bars are 100 µm.

FIGURE 1 in Two new species of Diamesinae (Diptera: Chironomidae) from the Central Iranian Range and Elburz Mountains (Iran), with new faunistic records for the subfamily

FIGURE 1. Sampling habitats, East Azerbaijan Province (A–C), Kurdistan Province (D–G). A. sampling habitat in the stream near Sahand Mountain, Kandovan Village. B. stream channel passing through the Kandovan Village outskirts. C. stream near Kaleybar Village. D. stream on the outskirts of Bayanchub village. E. foreground of the stream on the outskirts of Bayanchub village F. sampling habitat in the tributary of Saqqez River. G. foreground of the tributary of Saqqez River.