FIGURES 5–10 in A new species of Isoperla Banks (Plecoptera: Perlodidae) from the northeast of the Russian Far East

FIGURES 5–10. Isoperla chereshnevi sp. n.: 5. Aedeagus uneverted, dorsal. Posterodorsal portion with short posterolateral lobes. 6. Aedeagus, lateral. Paired rounded lateral lobes bent down; unpaired a triangular dorsomedial lobe, tapered on apex, directed obliquely upward and forward. 7. Aedeagus, ventral. Paired posterolateral lobes like wavy ribbons; posteromedial structure with stout spines in transparency. 8. Sharp golden setae with round bases. 9. Posteromedial structure of aedeagus, tightly packed stout spines with bulbous basis, ventral. 10. Female, abdominal tip, ventral. Scale (mm): 5‾9=0.1.