FIGURES 24 – 29. Perlodes stigmata. 24. Egg, dorsal view. 25. Collar, dorsal view. 26, 27. Chorion structure. 28. Right everted male eversible paraproct lobe, posterior view. 29 in Redescription of Filchneria mongolica (Klapálek, 1901) (Plecoptera, Perlodidae) based on type eggs and fresh material from the Selenga and Amur River Basins of Russia and Mongolia

FIGURES 24 – 29. Perlodes stigmata. 24. Egg, dorsal view. 25. Collar, dorsal view. 26, 27. Chorion structure. 28. Right everted male eversible paraproct lobe, posterior view. 29 Head of male. Scale (mm): 28 = 0.0625