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FIGURES 26–30 in Redescription of Paraleptophlebia falcula Traver 1934 with notes on status and composition of Paraleptophlebia Lestage 1917 and Neoleptophlebia Kluge 1997 (Ephemeroptera: Leptophlebiidae)

FIGURES 26–30. Paraleptophlebia falcula, genitals of male imago. 26–28, specimens from Transbaikal Kray; 29, 30, specimen from Komi Republic. 26, 29, ventral view; 27, penis, ventral view; 28, penis, dorsal view, 30, lateral view.

FIGURES 31–32. Paraleptophlebia falcula, female imago. 31 in Redescription of Paraleptophlebia falcula Traver 1934 with notes on status and composition of Paraleptophlebia Lestage 1917 and Neoleptophlebia Kluge 1997 (Ephemeroptera: Leptophlebiidae)

FIGURES 31–32. Paraleptophlebia falcula, female imago. 31, lateral view; 32, subanal plate, ventral view.

FIGURES 23–25. Paraleptophlebia falcula, male imago. 23 in Redescription of Paraleptophlebia falcula Traver 1934 with notes on status and composition of Paraleptophlebia Lestage 1917 and Neoleptophlebia Kluge 1997 (Ephemeroptera: Leptophlebiidae)

FIGURES 23–25. Paraleptophlebia falcula, male imago. 23, lateral view; 24, dorsal view; 25, ventral view.

FIGURES 38–39. Paraleptophlebia falcula, localities. 38 in Redescription of Paraleptophlebia falcula Traver 1934 with notes on status and composition of Paraleptophlebia Lestage 1917 and Neoleptophlebia Kluge 1997 (Ephemeroptera: Leptophlebiidae)

FIGURES 38–39. Paraleptophlebia falcula, localities. 38, Bolshaya Makcha river (Amurskiy Region); 39, Amnunnykta river (Sakha Yakutia).

FIGURES 1–13. Paraleptophlebia falcula, larvae. 1 in Redescription of Paraleptophlebia falcula Traver 1934 with notes on status and composition of Paraleptophlebia Lestage 1917 and Neoleptophlebia Kluge 1997 (Ephemeroptera: Leptophlebiidae)

FIGURES 1–13. Paraleptophlebia falcula, larvae. 1, labrum, dorsal view; 2, 3, left and right mandibles, dorsal view; 4, 5, incisors and kinetodonts of left and right mandibles; 6, maxillary palp, ventral view; 7, labium, dorsal view; 8, segments 2 and 3 of labial palp; 9, hypopharynx and superlinguae, dorsal view; 10, femur of foreleg; 11, foreclaw, dorsal view; 12, posterior margin of abdominal tergum IV; 13, abdominal sternum IX, female.

FIGURES 4–9 in A new species of Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae) and a re-description of adults for Paraleptophlebia westoni Imanishi, 1937 with the first description of the larva, from the Russian Far East

FIGURES 4–9. Paraleptophlebia kunashirica sp. nov., genitalia of male imago (4–8) and subanal plate of female (9). 4, ventral view, 5, genitalia and end of abdomen, lateral view; 6, penis, ventral view; 7, penis, dorsal view; 8, penis, lateral view; 9, subanal plate female, ventral view.

FIGURES 1–3 in A new species of Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae) and a re-description of adults for Paraleptophlebia westoni Imanishi, 1937 with the first description of the larva, from the Russian Far East

FIGURES 1–3. Paraleptophlebia kunashirica sp. nov., male imago. 1, head and thorax, dorsal view; 2, general dorsal view; 3, lateral view.

FIGURES 13–24. Paraleptophlebia westoni, larvae. 13 in A new species of Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae) and a re-description of adults for Paraleptophlebia westoni Imanishi, 1937 with the first description of the larva, from the Russian Far East

FIGURES 13–24. Paraleptophlebia westoni, larvae. 13, labrum, dorsal view; 14, 16, left and right mandibles, dorsal view; 15, 17, incisors of left and right mandibles; 18, maxillary palp, ventral view; 19, labium, dorsal view; 20, segments 2 and 3 of labial palps; 21, hypopharynx and superlinguae, dorsal view; 22, femur of foreleg; 23, foreclaw, dorsal view; 24, posterior margin of abdominal tergum VI.

FIGURES 10–12 in A new species of Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae) and a re-description of adults for Paraleptophlebia westoni Imanishi, 1937 with the first description of the larva, from the Russian Far East

FIGURES 10–12. Paraleptophlebia kunashirica sp. nov., egg. 10, general view; 11, structure of chorion; 12, shape of micropiles. The arrow shows the micropiles (mp).

FIGURES 32–37 in A new species of Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae) and a re-description of adults for Paraleptophlebia westoni Imanishi, 1937 with the first description of the larva, from the Russian Far East

FIGURES 32–37. Paraleptophlebia westoni, genitalia of male imago (32–36) and subanal plate of female (37). 32, ventral view; 33, genitalia and end of abdomen, lateral view; 34, penis, ventral view; 35, penis, dorsal view, 36, penis, lateral view; 37, subanal plate female, ventral view.

FIGURES 29–31. Paraleptophlebia westoni, male imago. 29 in A new species of Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae) and a re-description of adults for Paraleptophlebia westoni Imanishi, 1937 with the first description of the larva, from the Russian Far East

FIGURES 29–31. Paraleptophlebia westoni, male imago. 29, head and thorax, dorsal view; 30, general dorsal view; 31, general lateral view.

FIG. 41 in Nymphs of the Northeastern Nearctic Species of Neoleptophlebia Kluge, 1997 and Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae)

FIG. 41: nymph of Paraleptophlebia moerens. dorsal view of head and pronotum of live female nymph showing large paired pale median spots with diagonal gray streaks that divide each spot into two and less distinct lateral somewhat crescent shaped pale spots, which may also have gray streaks.

FIGS. 38–39 in Nymphs of the Northeastern Nearctic Species of Neoleptophlebia Kluge, 1997 and Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae)

FIGS. 38–39: nymphs of Paraleptophlebia. 38. lateral view of the abdomen gills of P. praepedita with arrow indicating distinct transition point of the clear membranous portion of gill filaments past which the clear membrane surrounding the medial trachea is much reduced, 39a. ventral view of the abdomens of female nymphs of P. moerens, arrow indicates dark lateral shading on sternites VIII and IX, 39b. ventral view of the abdomens of male nymphs of P. moerens, arrow indicates depressions along edges of sternites and dark lateral shading on sternites VIII and IX.

FIGS. 37a–c in Nymphs of the Northeastern Nearctic Species of Neoleptophlebia Kluge, 1997 and Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae)

FIGS. 37a–c: nymphs of Paraleptophlebia praepedita. 37a. female nymph after short term preservation in ethanol showing large white spots on sides of the pronotum, 36b. female nymph after long term preservation in ethanol showing medial pair of large white spots on the pronotum reduced, but lateral spots still distinct, 36c. male nymph after long term preservation in ethanol showing same pattern of pale spots on the pronotum as indicated for female.

FIGS. 40a–b in Nymphs of the Northeastern Nearctic Species of Neoleptophlebia Kluge, 1997 and Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae)

FIGS. 40a–b: nymphs of Paraleptophlebia moerens. 40a. dorsal view of abdominal color pattern of male nymph with distinct larger pale spots on tergites VII–X and pale spots along the lateral margins, 40b. dorsal view of abdominal color pattern of two female nymphs with median pale spots on tergites VII–X similar to those of the male nymphs, but with additional smaller pale spots on the medial posterior margins of tergites IV–VI and more distinct pale lateral margins of all tergites, also dark brown shading often occurs along edges of the short pale medial streak that occurs on tergites I–IX.

FIGS. 36a–d in Nymphs of the Northeastern Nearctic Species of Neoleptophlebia Kluge, 1997 and Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae)

FIGS. 36a–d: nymphs of Paraleptophlebia praepedita. 36a. dorsal view of abdominal color pattern of male nymph with median pale spots extending from tergite I–X, 36b. dorsal view of abdominal color pattern of male nymph with median pale spots absent on tergites V–VI, but present on tergites I–IV and VII–X, 36c. dorsal view of abdominal color pattern of female nymph with median pale spots extending from tergite I–X, 36d. dorsal view of abdominal color pattern of female nymph with median pale spots much reduced on tergites I–III, but present on tergites VI–X.

FIGS. 35a–b in Nymphs of the Northeastern Nearctic Species of Neoleptophlebia Kluge, 1997 and Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae)

FIGS. 35a–b: nymphs of Paraleptophlebia praepedita. 35a. ventral view of the abdomen of a female nymph with arrow indicating well-formed and symmetrical dark lateral bands on sternites, 35b. ventral view of the abdomen of a male nymph with similar well-formed lateral bands on sternites, brown color also extends on to the sides of the styliger plate.

FIGS 34 in Nymphs of the Northeastern Nearctic Species of Neoleptophlebia Kluge, 1997 and Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae)

FIGS 34: nymphs of Paraleptophlebia ontario. ventral view of male and female nymph of P. ontario with arrow indicating traces of dark lateral dashes that occur on the posterior margins of sternites, near tip of arrow also note traces of dark shading along lateral margins that can appear as poorly developed lateral bands.

FIGS. 32a–b in Nymphs of the Northeastern Nearctic Species of Neoleptophlebia Kluge, 1997 and Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae)

FIGS. 32a–b: heads of Paraleptophlebia nymphs. 32a. dorsal view of the head of male nymph of P. debilis with bases of lateral ocelli widely separated, 32b. dorsal view of the head of male nymph of P. ontario with bases of lateral ocelli touching.

FIGS. 33a–c in Nymphs of the Northeastern Nearctic Species of Neoleptophlebia Kluge, 1997 and Paraleptophlebia Lestage, 1917 (Ephemeroptera: Leptophlebiidae)

FIGS. 33a–c: nymphs of Paraleptophlebia ontario. 33a. dorsal view of abdominal color pattern of male nymph from Pennsylvania, with slight dark gray shading in posterior half of tergites, 33b. dorsal view of abdominal color pattern of male nymph from Pennsylvania, USA with extensive dark gray shading in posterior half of tergites, 33c. dorsal view of abdominal color pattern of male nymph from Illinois USA, that has been preserved in ethanol for 84 years, some gray shading still evident on tergites, 33d. dorsal view of abdominal color pattern of female nymph from Pennsylvania, with slight dark gray shading in posterior half of tergites, shading often less extensive than on male nymphs.