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FIGURES 13–21 in Contribution to the knowledge of the subgenus Tenuibaetis Kang & Yang 1994 (Ephemeroptera, Baetidae, Baetis s. l.)

FIGURES 13–21. Imaginal hind wings and larval protoptera (under the same magnification). 13–14, female Baetis (Tenuibaetis) frequentus from India; 15–17, male B. (T.) octomaculatus sp. n.; 18–19, female of same species; 20–21, male B. (T.) bialatus sp. n. (13, 15, 20, metathorax of imago with hind wing; 14, 21, larval exuviae of metanotum; 16, 18, hind wing of imago; 17, 19, cuticle from metathorax of larva ready to molt to subimago, with subimaginal wing inside protopteron: crumpled on Fig. 17, non-crumpled on Fig. 19).

FIGURES 78–82 in Contribution to the knowledge of the subgenus Tenuibaetis Kang & Yang 1994 (Ephemeroptera, Baetidae, Baetis s. l.)

FIGURES 78–82. Baetis (Tenuibaetis) frequentus, larvae from India. 78–79, left and right mandibles with mandibles of next instar developing inside; 80–81, labrum of two individuals; 82, labium.

FIGURES 44–46 in Contribution to the knowledge of the subgenus Tenuibaetis Kang & Yang 1994 (Ephemeroptera, Baetidae, Baetis s. l.)

FIGURES 44–46. Baetis (Tenuibaetis) hissaricus, larval exuviae. 44, head; 45, labrum; 46, labium (44, 46, holotype).

FIGURES 129–134 in Contribution to the knowledge of the subgenus Tenuibaetis Kang & Yang 1994 (Ephemeroptera, Baetidae, Baetis s. l.)

FIGURES 129–134. Baetis (Tenuibaetis) fujitanii, exuviae of larval legs. 129–131, fore, middle and hind legs; 132, anterior surface of hind femur; 133–134, middle tibia.

FIGURES 5–12 in Contribution to the knowledge of the subgenus Tenuibaetis Kang & Yang 1994 (Ephemeroptera, Baetidae, Baetis s. l.)

FIGURES 5–12. Pseudo-bifurcate setae of Baetis (Tenuibaetis) frequentus from India. 5–8, pseudo-bifurcate setae on outer side of tibia (7, with hirudiform seta); 9–10, pseudo-bifurcate setae on outer side of tibia (view in profile, in transmitted light); 11–12, pseudo-bifurcate setae on anterior side of femur (surface view, in transmitted light).

FIGURES 69–77 in Contribution to the knowledge of the subgenus Tenuibaetis Kang & Yang 1994 (Ephemeroptera, Baetidae, Baetis s. l.)

FIGURES 69–77. Baetis (Tenuibaetis) frequentus, larval exuviae. 69–75, from India (69–74, at one magnification): 69, head; 70–72, fore, middle and hind legs; 73, abdomen; 74, half of pronotum and mesonotum, 75, femur of dark individual. 76–77, posterior margin of abdominal tergum VI of two individuals from Haputale (Sri Lanka).

FIGURE 1. A in Two new species of Baetodes Needham & Murphy, 1924 with an updated checklist of Baetidae (Ephemeroptera) of Rondônia state, Brazil

FIGURE 1. A. Map of South America and Rondônia State, Brazil, showing the distribution of sites with records of Baetidae (Ephemeroptera). AM=Amazonas State; MT=Mato Grosso State; AC=Acre State, B. site P1-Lake in Rolim de Moura, C. site P2-192 waterfall, Rolim de Moura, D. site P4-Stream under bridge, Vilhena, E. site P5-Vermelho River, Vilhena, F. site P10- Cabixi River, Colorado d'Oeste. See detailed information in Table 1.

FIGURE 3 in Two new species of Baetodes Needham & Murphy, 1924 with an updated checklist of Baetidae (Ephemeroptera) of Rondônia state, Brazil

FIGURE 3. Baetodes vermelho sp. nov. Nymph (holotype). A, labrum (left: v.v.; right: d.v.); B, left mandible; C, right mandible; D, hypopharynx; E, maxilla; F, labium (left: v.v.; right: d.v.); G, labium, detail of glossa; H, foreleg; I, foreleg, detail of dorsal margin; J, surface of tergum IV.

FIGURE 6 in Two new species of Baetodes Needham & Murphy, 1924 with an updated checklist of Baetidae (Ephemeroptera) of Rondônia state, Brazil

FIGURE 6. Baetodes cerejeiras sp. nov. Nymph (holotype). A, labrum (left: v.v.; right: d.v.); B, left mandible; C, right mandible; D, hypopharynx; E, maxilla; F, labium (left: v.v.; right: d.v.); G, labium, detail of glossa; H, foreleg; I, foreleg, detail of dorsal margin; J, surface of tergum IV.

FIGURE 2 in Two new species of Baetodes Needham & Murphy, 1924 with an updated checklist of Baetidae (Ephemeroptera) of Rondônia state, Brazil

FIGURE 2. Baetodes vermelho sp. nov. Habitus of nymphs (holotype): A, dorsal; B, lateral; C, ventral; D, detail of abdomen, lateral view; E, details of thorax and abdomen, ventral view; arrows indicate coxal gills.

FIGURE 5 in Two new species of Baetodes Needham & Murphy, 1924 with an updated checklist of Baetidae (Ephemeroptera) of Rondônia state, Brazil

FIGURE 5. Baetodes cerejeiras sp. nov. Habitus of nymphs (holotype): A, dorsal; B, ventral; C, lateral; D, detail of thorax and abdomen, ventral view; arrows indicate coxal gills.

FIGRURES 77–78 in Two new species of the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987 (Ephemeroptera: Baetidae) from Southwest China

FIGRURES 77–78. Type localities of Nigrobaetis bilongus sp. nov. (Qingbi Stream, Mt. Cangshan, Dali City, Yunnan).

FIGRURES 73–76 in Two new species of the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987 (Ephemeroptera: Baetidae) from Southwest China

FIGRURES 73–76. Larvae of Nigrobaetis facetus from different locations in China 73, head and thorax (dorsal view, fresh specimen); 74, thorax and abdomen (dorsal view, fresh specimen); 75, female mature larva; 76, male mature larva. (Scale bars = 1mm).

FIGRURES 60–72 in Two new species of the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987 (Ephemeroptera: Baetidae) from Southwest China

FIGRURES 60–72. Nigrobaetis trialbus sp. nov. 60, labrum; 61, left mandible; 62, right mandible; 63, hind wing pad; 64, labial palp (ventral view); 65, glossa (dorsal view); 66, labial palp (dorsal view); 67, gill I; 68, gill III; 69, gill V; 70, gill VII; 71, paraproct; 72, foreleg. (Scale bars: Fig. 65 = 0.05mm, remains = 0.1mm).

FIGRURES 45–48. 45 in Two new species of the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987 (Ephemeroptera: Baetidae) from Southwest China

FIGRURES 45–48. 45, glossae and paraglossae of Nigrobaetis bilongus sp. nov. (dorsal view); 46, paraglossa of Nigrobaetis gracilentus (dorsal view, black line shows the arched row of dorsal setae); 47–48, two sides of the same egg observed under optical microscope (Bar=0.1mm).

FIGRURES 36–38 in Two new species of the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987 (Ephemeroptera: Baetidae) from Southwest China

FIGRURES 36–38. Male imago of Nigrobaetis bilongus sp. nov. 36, fore wing (Scale bar = 1mm); 37, hind wing (Scale bar = 0.1mm); 38, foreleg (Scale bar = 1mm).

FIGRURES 32–35 in Two new species of the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987 (Ephemeroptera: Baetidae) from Southwest China

FIGRURES 32–35. Male imago of Nigrobaetis bilongus sp. nov. 32, lateral view of head (arrow indicates interantennal carina); 33, top view of head; 34, front view of head (arrow indicates interantennal carina); 35, genitals. (Scale bar = 0.1mm).

FIGRURES 30–31 in Two new species of the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987 (Ephemeroptera: Baetidae) from Southwest China

FIGRURES 30–31. Imagoes of Nigrobaetis bilongus sp. nov. 30, male imago; 31, female imago. (Scale bars = 1mm).

FIGRURES 24–29 in Two new species of the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987 (Ephemeroptera: Baetidae) from Southwest China

FIGRURES 24–29. Nigrobaetis bilongus sp. nov. 24, gill I; 25, gill III; 26, gill V; 27, gill VII; 28, posterior margin of tergite V (partly); 29, foreleg. (Scale bars = 0.1mm).

FIGRURES 1–5 in Two new species of the genus Nigrobaetis Kazlauskas (in Novikova & Kluge), 1987 (Ephemeroptera: Baetidae) from Southwest China

FIGRURES 1–5. Larval habitus of Nigrobaetis bilongus sp. nov. 1–3, young larva; 4, mature male larva (dorsal view); 5, mature female larva (dorsal view). (Scale bars = 1mm).