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FIGURES 1–8 in A new subspecies of the subgenus Ecdyonurus Eaton, 1868 (Ephemeroptera: Heptageniidae) from the East of Ukraine

FIGURES 1–8. Ecdyonurus dispar gratificus ssp. nov., imagoes, paratypes: 1, male body, lateral view, scale bar = 1 mm; 2, female body, lateral view, scale bar = 1 mm; 3, female abdomen, lateral view; 4, male abdomen, lateral view; 5, female abdomen, dorsal view; 6, male head, dorsal view; 7, female head and thorax, dorsal view; 8, posterior part of female abdomen, ventral view.

FIGURES 42–51 in A new subspecies of the subgenus Ecdyonurus Eaton, 1868 (Ephemeroptera: Heptageniidae) from the East of Ukraine

FIGURES 42–51. Ecdyonurus dispar gratificus ssp. nov., larvae: 42–45, shape of lateral projection of pronotum; 46–49, tarsal claws; 50, central part of posterior margin of fourths abdominal terga; 51, central part of posterior margin of sixths abdominal terga.

FIGURES 14–16 in A new subspecies of the subgenus Ecdyonurus Eaton, 1868 (Ephemeroptera: Heptageniidae) from the East of Ukraine

FIGURES 14–16. Ecdyonurus dispar gratificus ssp. nov., subimagoes, paratypes: 14, part of male body, lateral view; 15, male abdomen, lateral view; 16, female abdomen, lateral view.

FIGURE 56 in A new subspecies of the subgenus Ecdyonurus Eaton, 1868 (Ephemeroptera: Heptageniidae) from the East of Ukraine

FIGURE 56. Distribution of Ecdyonurus dispar gratificus ssp. nov. in the East of Ukraine, scale bar = 50 km.

FIGURES 31–41 in A new subspecies of the subgenus Ecdyonurus Eaton, 1868 (Ephemeroptera: Heptageniidae) from the East of Ukraine

FIGURES 31–41. Ecdyonurus dispar gratificus ssp. nov., larvae: 31, labrum, ventral view; 32, bristles on the ventral side of labrum; 33, glossa and paraglossa; 34, hind leg; 35–40, shape of femoral scales; 41, outer margin of femur.

FIGURES 21–30 in A new subspecies of the subgenus Ecdyonurus Eaton, 1868 (Ephemeroptera: Heptageniidae) from the East of Ukraine

FIGURES 21–30. Ecdyonurus dispar gratificus ssp. nov., larvae, paratypes: 21, coloration of male nymph abdomen, dorsal view; 22, coloration of male larva abdomen, ventral view; 23, coloration of female larva abdomen, ventral view; 24–25, first gills; 26–28, fourth gills; 29–30, seventh gills.

FIGURES 49–50 in Redescription of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, 1985 (Ephemeroptera: Heptageniidae)

FIGURES 49–50. Type locality of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, Ropotamo River, Novo Panicharevo village (July 2011) (photos by Roman J. Godunko).

FIGURES 41–43 in Redescription of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, 1985 (Ephemeroptera: Heptageniidae)

FIGURES 41–43. Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, mature larva, topotype: 41, right gill I; 42, right gill IV; 43, left gill VII.

FIGURES 35–40 in Redescription of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, 1985 (Ephemeroptera: Heptageniidae)

FIGURES 35–40. Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, mature larvae, topotypes: 35, left gill I, scale bar = 100 Μm; 36, right gill IV, scale bar = 100 Μm; 37, right gill VII, scale bar = 100 Μm; 38, posterior margin of abdominal tergum IV centrally, scale bar = 10 Μm; 39, surface of terminal filament, details, scale bar = 10 Μm; 40, tarsal claw of hind leg, scale bar = 100 Μm.

FIGURES 27–34 in Redescription of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, 1985 (Ephemeroptera: Heptageniidae)

FIGURES 27–34. Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, mature larvae, topotypes: 27, 33, setae on middle femur centrally (general view and details), dorsal view; 28, 32, 34, setae on middle femur distally (general view and details), dorsal view; 29, setae on middle trochanter; 30, 31, setae on hind femur proximally (general view and details), dorsal view. Scale bars = 10 Μm.

FIGURES 20–26 in Redescription of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, 1985 (Ephemeroptera: Heptageniidae)

FIGURES 20–26. Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, mature larvae, topotypes: 20, labrum, ventral view, scale bar = 100 Μm; 21, bristles on the ventral side of labrum, scale bar = 100 Μm; 22, glossa and paraglossae, dorsal view, scale bar = 100 Μm; 23, setae on fore femur distally, dorsal view, scale bar = 10 Μm; 24, seta on fore femur centrally, dorsal view, details, scale bar = 10 Μm; 25, inner margin of fore femur centrally, dorsal view, scale bar = 10 Μm; 26, outer margin of fore femur centrally, dorsal view, scale bar = 10 Μm.

FIGURES 13–15 in Redescription of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, 1985 (Ephemeroptera: Heptageniidae)

FIGURES 13–15. Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, female imago, topotype: 13, body, left side, lateral view; 14, head and thorax details, left side, lateral view; 15, abdominal segments details, left side, lateral view.

FIGURES 16–19 in Redescription of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, 1985 (Ephemeroptera: Heptageniidae)

FIGURES 16–19. Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, larvae, Mladezhka River (May 2009): 16, body, dorsal view; 17, head and thorax details, dorsal view; 18, abdominal segments, ventral view; 19, abdominal segments, dorsal view.

FIGURES 1–5 in Redescription of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, 1985 (Ephemeroptera: Heptageniidae)

FIGURES 1–5. Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, male imagines, paratypes: 1, body, left side, lateral view; 2, head and thorax details, dorsal view; 3, head and thorax details, left side, lateral view; 4, abdominal segments details, dorsal view; 5, abdominal segments details, left side, lateral view.

FIGURES 10−12 in Redescription of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, 1985 (Ephemeroptera: Heptageniidae)

FIGURES 10−12. Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, male imago, paratype (10, 11), female imago, topotype (12): 10, genitalia, ventral view; 11, penis lobes, dorsal view; 12, tip of abdomen, ventral view.

FIGURES 6–9 in Redescription of Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, 1985 (Ephemeroptera: Heptageniidae)

FIGURES 6–9. Ecdyonurus (Ecdyonurus) russevi Braasch & Soldán, male imago, paratype: 6, genitalia, dorsal view, scale bar = 100 Μm; 7, penis lobes, dorsal view, scale bar = 100 Μm; 8, details of apical sclerite of penis lobe, dorsal view, scale bar = 10 Μm; 9, details of lateral sclerite of penis lobe, dorsal view, scale bar = 10 Μm.

FIGURES 46–48 in Diversity of Armenian mayflies (Ephemeroptera) with the description of a new species of the genus Ecdyonurus (Heptageniidae)

FIGURES 46–48. Sites of occurrence of Ecdyonurus (Ecdyonurus) eurycephalus sp. nov.: 46, site 36 (type locality); 47, site 38; 48, site 35.

FIGURES 27–28 in Diversity of Armenian mayflies (Ephemeroptera) with the description of a new species of the genus Ecdyonurus (Heptageniidae)

FIGURES 27–28. Ecdyonurus (Ecdyonurus) eurycephalus sp. nov., leg: 27, hind leg dorsal; 28a–h, setae on dorsal surface of femora.

FIGURES 24–26 in Diversity of Armenian mayflies (Ephemeroptera) with the description of a new species of the genus Ecdyonurus (Heptageniidae)

FIGURES 24–26. Ecdyonurus (Ecdyonurus) eurycephalus sp. nov., mouthparts: 24, labrum dorsal (left) and ventral (right); 25, labrum contour; 26, labial glossae and paraglossae: left part ventral view, right part contour.

FIGURES 13–14 in Diversity of Armenian mayflies (Ephemeroptera) with the description of a new species of the genus Ecdyonurus (Heptageniidae)

FIGURES 13–14. Ecdyonurus (Ecdyonurus) eurycephalus sp. nov., genitalia of male imago: 13, styliger, forceps and penis ventral; 14, penis dorsal.