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Figs 19–22. Oligoneuria itayana, wing venation: 19–20 — venation and tracheation of fore and hind protoptera of immature last instar larva (veins are shown as non-dotted stripes, tracheae are shown as integral black lines); 21–22 — fore and hind wings of female imago (veins hidden in folds are shown by interrupted lines).
Ðèñ. 19–22. Oligoneuria itayana, æèëêîâàíèå êðûëüåâ: 19–20 — æèëêîâàíèå è òðàõåàöèÿ ïåðåäíåãî è çàäíåãî ïðîòîïòåðîíîâ íåçðåëîé ëè÷èíêè ïîñëåäíåãî âîçðàñòà (æèëêè ïîêàçàíû êàê íåïóíêòèðîâàííûå ïîëîñû, òðàõåè ïîêàçàíû êàê ñïëîøíûå ÷åðíûå ëèíèè); 21–22 — ïåðåäíåå è çàäíåå êðûëüÿ ñàìêè èìàãî (æèëêè, êðûòûå â ñêëàäêàõ, ïîêàçàíû ïðåðûâèñòûìè ëèíèÿìè).