A new stonefly species (Plecoptera, Perlidae) from the Interior Highlands USA, with morphological and molecular comparison to other congeneric species

Perlesta sublobata sp. nov., aedeagus of paratype male from Little Missouri River, Arkansas (INHS Insect Collection 793295) A lateral view showing dorsal caecum (DC), ventral caecum (VC), envelope (E), tube (T), sac (S), sac extension (SE), dorsal patch (DP), ventral seta-like spines (VS), lateral sclerite (LS), and dorsal extension of the lateral sclerites (DLS) B lateral view showing partially extruded dorsal caecum C dorsal view showing dorsal patch (DP) and dorsal extension of the lateral sclerites (DLS) D dorsal view showing partially extruded dorsal caecum E ventral view showing fine seta-like spines covering sac venter and ventral caecum (VC) F ventral view. Scale bars: 200 µm (A, B, C, D); 50 µm (E); 500 µm (C, F); 50 µm (F).