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FIGURE 5 in A revision of the South African riffle beetle genus Leielmis Delève, 1964 (Coleoptera: Elmidae)

FIGURE 5. Leielmis species, aedeagi, ventral and lateral views. A) L. georyssoides; B) L. gibbosus sp. nov.; C) L. hirsutus sp. nov. Scale bar = 0.25 mm.

FIGURE 3 in A revision of the South African riffle beetle genus Leielmis Delève, 1964 (Coleoptera: Elmidae)

FIGURE 3. Leielmis species, Elytral sculpture, scanning electron micrographs. A) L. georyssoides; B) L. gibbosus sp. nov.; C) L. hirsutus sp. nov.

FIGURE 7. Leielmis species, habitats. A in A revision of the South African riffle beetle genus Leielmis Delève, 1964 (Coleoptera: Elmidae)

FIGURE 7. Leielmis species, habitats. A) Western Cape, Table Mountain, stream in Echo Valley, L. georyssoides; B) Western Cape, Groote Winterhoekberge, Stream below Sneeugatpiek, L. gibbosus sp. nov. & L. hirsutus sp. nov.; C) Western Cape, stream at Mont Rochelle above Franschhoek, L. gibbosus sp. nov. Photos D. T. Bilton & N. Helme.

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.

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Fig. 1 in Underwater Pupation by the Comal Springs Riffle Beetle, Heterelmis Comalensis Bosse, Tuff, and Brown, 1988 (Coleoptera: Elmidae), with an Update on Culture Techniques

Fig. 1. Marking Heterelmis vulnerata using Brite-Mark® Fiber Tip Paint Markers and an insect pin following the recommendations of Wineriter and Walker (1984).

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Fig. 3 in Underwater Pupation by the Comal Springs Riffle Beetle, Heterelmis Comalensis Bosse, Tuff, and Brown, 1988 (Coleoptera: Elmidae), with an Update on Culture Techniques

Fig. 3. Combined count of Microcylloepus pusillus, Stygobromus pecki, and Stygoparnus comalensis found on three cotton cloth lures buried within 3 m of one another during a 17-week monitoring period at Spring Run 2, Comal Springs, Texas.

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Fig. 1 in Stenelmis hollandiWhite and Lenat (Coleoptera: Elmidae), a New Species of Riffle Beetle from the Little River, North Carolina, USA

Fig. 1. Dorsal aspect of Stenelmis hollandi female showing general features of the pronotum and elytra. Photograph courtesy of Eric Fleek, North Carolina Division of Water Resources.

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Fig. 2 in Stenelmis hollandiWhite and Lenat (Coleoptera: Elmidae), a New Species of Riffle Beetle from the Little River, North Carolina, USA

Fig. 2. Dorsal view of Stenelmis hollandi male genitalia. Parameres are splayed more than they would appear naturally.

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Fig. 2 in Riffle Beetle Communities of Perennial and Intermittent Streams in Northern Nevada, USA, with a New State Record forOptioservus castaneipennis(Fall) (Coleoptera: Elmidae)

Fig. 2. Pie charts illustrating proportional abundances of elmid beetles in perennial stream sites in northern Nevada. Values for the Bray-Curtis Index of Similarity between successive sample events are presented between pie charts.

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Fig. 3 in Riffle Beetle Communities of Perennial and Intermittent Streams in Northern Nevada, USA, with a New State Record forOptioservus castaneipennis(Fall) (Coleoptera: Elmidae)

Fig. 3. Pie charts illustrating proportional abundances of elmid beetles in intermittent stream sites in northern Nevada. Values for the Bray-Curtis Index of Similarity between successive sample events (July 2011 compared to May 2007) are presented between the pie charts.

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Fig. 1. A in Underwater Pupation by the Comal Springs Riffle Beetle, Heterelmis Comalensis Bosse, Tuff, and Brown, 1988 (Coleoptera: Elmidae), with an Update on Culture Techniques

Fig. 1. A) Culture container used for Heterelmis comalensis, B) H. comalensis pupa inside a plastic flow-through chamber. The steel mesh ring was used to forcefully keep pupae underwater.

FIGURE 4. A–F in Zaitzevia tangliangi sp. nov. a new riffle beetle from China (Coleoptera:Elmidae Macronychini)

FIGURE 4. A–F. Water environment of the type locality of Zaitzevia tangliangi sp. nov.: Houhe N. R., Hubei, China.

FIGURE 3 in Zaitzevia tangliangi sp. nov. a new riffle beetle from China (Coleoptera:Elmidae Macronychini)

FIGURE 3. Diagnostic features of Zaitzevia tangliangi sp. nov. (A–D & F male, E & G female). A. Aedeagus, dorsal view; B. Same, lateral view; C. Same, ventral view; D. Abdominal segment 9 and speculum gastrale, male; E. Ovipositor; F. Sternite V, male; G. Sternite V, female.

FIGURE 2 in Zaitzevia tangliangi sp. nov. a new riffle beetle from China (Coleoptera:Elmidae Macronychini)

FIGURE 2. Diagnostic features of Zaitzevia tangliangi sp. nov. A. Head, dorsal view; B. Pronotum, dorsal view; C. Antenna; D. Prosternal process; E. Metaventrite; F. Elytra

FIGURES 15–16 in A new minute riffle beetle (Coleoptera: Elmidae: Pagelmis) from the Brazilian Amazon

FIGURES 15–16. (15) Geographical distribution map of Pagelmis (Coleoptera: Elmidae). (16) Stream in Manacapuru municipality, Amazonas state, Brazil, where the holotype of P. mura sp. nov. was collected.

FIGURES 12–14 in A new minute riffle beetle (Coleoptera: Elmidae: Pagelmis) from the Brazilian Amazon

FIGURES 12–14. Pattern of the median shiny longitudinal area without plastron on pronotum. 12–13 Pagelmis mura sp. nov. (12) Male. (13) Female. (14) Pagelmis amazonica Spangler, 1981, adapted from the original description.